[U2] Perfomance of REC.ID = ID.LIST[@VM, 1, 1] vs REC.ID = ID.LIST1, 1
I have a large dynamic array ID.LIST. 99% of it is made of ID.LIST1 which itself is multi valued. I need to extract only ID.LIST1, 1. Im just wondering if the technical implementation of REC.ID = ID.LIST1, 1 results in an unnecessary scan of almost the entire array looking for @FM to delimit the first field then a second scan to delimit by @VM or am I better off using the FIELD operator ID.LIST[@VM, 1, 1] in this case. Marco. ___ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users
Re: [U2] trimming a list (a test of your ability)
You must do WHILE MORE:NEXT.ID or WHILE NEXT.ID:MORE otherwise the last NEXT.ID will not be processed From: dennis bartlett dqbartl...@gmail.com To: U2 Users List u2-users@listserver.u2ug.org Sent: Friday, 13 July 2012, 7:09 Subject: Re: [U2] trimming a list (a test of your ability) Hi Steven The REMOVE statement process a multivalued list. The SETTING clause will set the variable to either 3, or 2, or 1, or 0 depending on the value of the delimiter last encountered... 1 for @FM 2 for @VM 3 for @SM 0 for End Of String If the array consists only of @FM, then MORE will be set to 1 for each iteration (since the delimiter it is encountering each time is an @FM) and then, when the last element is read, MORE will be set to ZERO, and the WHILE MORE will fail, thus the loop is exited. If FM.ARRAY is empty, MORE will return as 0 and the loop will exit, but you're right - the WHILE MORE line should be one line higher.. UNIQ.LIST = '' LOOP REMOVE NEXT.ID http://next.id/ FROM FM.ARRAY SETTING MORE WHILE MORE LOCATE(NEXT.ID http://next.id/,UNIQ.LIST,1;POS) ELSE UNIQ.LIST-1 = NEXT.ID http://next.id/ REPEAT the WHILE statement is in effect a while it is not zero and the second it becomes a zero, the loop exits. ___ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users ___ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users
[U2] Changing lower case keywords to UPPER CASE
I need to change all keywords in some UV BASIC programs to upper case. Global search and replace wont do because I should not change the keywords if they appear inside quotted strings or comments. Some of the programs are really looong. Does anyone have a better idea how to do this? Kind regards, Marco. ___ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users
[U2] INFO BASIC BNF Spec
Can anyone please help me with the full BNF spec for the structure of an INFO BASIC program? Thanks for any help, Marco. ___ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users
Re: [U2] INFO BASIC BNF Spec
The reason I want the BNF description is that I want to _attempt_ a java lexer and parser that will trace the execution flow of a given subroutine and emit some documentation fragments that I can then use to make a flow chart. I am particulary interested in documenting all the logical evaluations that occur at IF...THEN, CASE, LOCATE ... THEN, WHILE, UNTIL, etc that lead to certain database actions. I want to be able to say for example for field X of file Y to be update in routine ABC conditions 1 2 3 should have been met. - Original Message From: Martin Phillips martinphill...@ladybridge.com To: U2 Users List u2-users@listserver.u2ug.org Sent: Wednesday, 5 August, 2009 10:02:01 Subject: Re: [U2] INFO BASIC BNF Spec Hi Marco, Can anyone please help me with the full BNF spec for the structure of an INFO BASIC program? I have never seen the language described in BNF. Perhaps one reason is that is is ambiguous in a few places. The most obvious example is A = BC + 1 where the could be field expression delimiters or could be relational operators. Out of interest, why are you looking for a BNF definition? Martin Phillips Ladybridge Systems Ltd 17b Coldstream Lane, Hardingstone, Northampton, NN4 6DB +44-(0)1604-709200 ___ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users ___ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users
Re: [U2] General guidelines on indexing
On my DualCore WindowsXP laptop with 3GB ram @2.16GHZ, (UV 10.0.04): The dynamic array test took 30 minutes. I compiled the same program on jBASE 4.1 on the same laptop and it completed in 0 seconds! I had to print LEN(S) before and after to confirm that the program was indeed running! - Original Message From: David Ward damad...@comcast.net To: U2 Users List u2-users@listserver.u2ug.org Sent: Thursday, 9 July, 2009 16:24:17 Subject: Re: [U2] General guidelines on indexing Original test and a couple of other variations. We use the DIM approach in several cases where variable data is large and temporary. Test system run on WindowsXP Single DuoCore @2.20ghz 2GB Ram Original version - -1 variable append Elapsed Time 00:25:04 Altered version - Using WRITESEQ - Same System 1.203 seconds Altered version - Using DIM Variable - Same System 0.172 seconds ___ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users ___ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users
Re: [U2] General guidelines on indexing
In one test I did a couple of months back, I found that appending IDs to the end of a dynamic array perfomed _much_ _much_ slower than a WRITESEQ to the end of a disk file and the dynamic array wasnt even a 100 000 records long. We were able to reduce the time required to produce a report from over 30 minutes to less than 2 minutes by removing the dynamic array operations and replacing them with WRITESEQs. We tried all the different syntaxes of appending to the array with no noticeable difference in poor performance once the array got large. - Original Message From: Baakkonen, Rodney A (Rod) 46K rodney.baakko...@cigna.com To: U2 Users List u2-users@listserver.u2ug.org Sent: Wednesday, 8 July, 2009 17:15:57 Subject: Re: [U2] General guidelines on indexing In theory, I would have to agree with you. Who knows how all this stuff really works under the hood. You have Unidata Shared memory management and shared basic code server. We also have a huge SAN with a lots of cache. Measuring performance and impacting it is different these days. There are so many layers and events, finding the bottleneck can be tricky. All I can tell you is that we did extensive testing and we would not be doing what we are unless it worked. Maybe on you site, on your server and your database, these techniques don't enhance performance. I'm telling you what we found, your mileage may vary. We have been told to use concatenate with a @AM to build our arrays, as Unidata has a pointer to the end of a variable. We have been told to use REMOVE when pulling data out of the array. We know that. We still had performance gains that went from days to hours when we changed to a well sized work file. There are many reasons why we use the work file. Typically this is used in the selection part of the process. The sorting and reporting is after. Sometimes the work file contains more than keys ( vs. having multiple dynamic arrays). Sometimes multiple reports are generated from the same work file. -Original Message- From: u2-users-boun...@listserver.u2ug.org [mailto:u2-users-boun...@listserver.u2ug.org] On Behalf Of Edward Brown Sent: Wednesday, July 08, 2009 6:47 AM To: U2 Users List Subject: Re: [U2] General guidelines on indexing I don't agree. Disk access is inherently slower than RAM access. Therefore a process that makes efficient use of RAM will be faster than an equivalent algorithm making efficient use of disk. In your case, it's just a matter of scale: 50 million records at (lets say) 14 bytes per ID plus the multivalue marker needed to build up the dynamic array. 15 * 50,000,000 = 750,000,000 bytes. That's 732,422KB, 715MB If your process is running on a modern server then this kind of op becomes practical. Assumptions: - that the dynamic array isn't using Unicode. If it is then memory reqirements double. - That you select every record - normally (presumably) it would be just a fraction? In fact isn't all of this theoretical? Using the index select / readfwd / own tests method, there's no need to build workfiles or dynamic arrays at all - simply do the tests as each record is retrieved with readfwd and then create the report / do the processing all within the same loop? Ed -Original Message- From: u2-users-boun...@listserver.u2ug.org [mailto:u2-users-boun...@listserver.u2ug.org] On Behalf Of Baakkonen, Rodney A (Rod) 46K Sent: 08 July 2009 12:30 To: U2 Users List Subject: Re: [U2] General guidelines on indexing When you have a file with 50 million records, it does not matter how you build the or parse the dynamic array. A well sized work file will run circles around the dynamic array. -Original Message- From: u2-users-boun...@listserver.u2ug.org [mailto:u2-users-boun...@listserver.u2ug.org] On Behalf Of Edward Brown Sent: Wednesday, July 08, 2009 6:12 AM To: U2 Users List Subject: Re: [U2] General guidelines on indexing After indexing, we made a lot more use of the SETINDEX and READFWD logic in our programs. I find this curious / disappointing - is it really the case that unidata can't take the mix of indexed / unindexed dictionary items and do just as efficient a job as the code you're writing? Also, the performance of dynamic arrays need not be as much an issue as you've found. If they're built up with -1 rather than a counter then the speed penalty of adding items to a very large list is much the same as a tiny one. Then, when you loop through them for further processing use the REMOVE (or FORMLIST) command rather than a counter. The only real issue with dynamic arrays is if the machine does not have the physical memory available to hold the variable. Ed --- Please remember to recycle wherever possible. Reduce, reuse, recycle, think do you need to print this e-mail? --- This e-mail
[U2] UV BASIC Flowing Charting Tools
Does anyone have a good recommendation for Universe BASIC source code flow charting software to aid with analysis and documentation of existing code? Thanks for any help, Marco. --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
[U2] [UV] How to 'transfer' a READU lock to another process/port
The solution I have for a certain problem could easily be solved without redesigning large portions of the existing code if I could implement an algorithm to have process1 release a READU lock and have process2 acquire that lock ahead of all other processes that may be interested in the same lock. Does anyone have an idea how I could do this in UV? Kind regards, Marco. --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
RE: [U2] Guaranteed unique sequential keys
Thank you all for all the responses. I was hoping that somewhere within the operating system's scheduling mechanism there is something like a timeslice serial number which could be read with some system function. No 2 processes could ever return the same timeslice serial number within a day for example. My unique id would then be formed as follows: snip BASEKEY = DATE():*:time slice serial number IF BASEKEY EQ PREVBASEKEY THEN SEQ.NUM += 1 ELSE PREVBASEKEY = BASEKEY SEQ.NUM = 1 END UNIQUE.KEY = BASEKEY:*:SEQ.NUM /snip This way there would be no need for extra IOs and no bottlenecks on a syncronisation key. --- On Fri, 25/4/08, Glen B [EMAIL PROTECTED] wrote: From: Glen B [EMAIL PROTECTED] Subject: RE: [U2] Guaranteed unique sequential keys To: u2-users@listserver.u2ug.org Date: Friday, 25 April, 2008, 5:30 AM You'll need a central key generator to manage high resolution sortable sequential keys. You can use whatever connection medium is feasible and let a single process/phantom generate the keys in numerical order. The problem with using a key generator like this is that you could easily produce a bottleneck. On the other hand, the benefit of doing it this way is that the generator can be a single phantom. It can keep track of the last used key in memory and can pregenerate keys for near-future or parallel usage. If the connection medium you choose allows for multiple requests at a time, then your management code must be able to manage and pregenerate keys for each thread concurrently. A wide solution could be a socket service that serves unique keys to clients. I use base-16 for a lot of sequential keys so that I have many unique iterations per key length. I always use them as direct pointers and I never sort them, though. Hex sortability from LIST/SORT/SELECT could be questionable. Glen -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Marco Manyevere Sent: Thursday, April 24, 2008 5:55 AM To: u2-users@listserver.u2ug.org Subject: [U2] Guaranteed unique sequential keys What is the most reliable way to generate unique sequential keys without having to resort to a record on disk updated through readu/write? The keys don't have to be contiguous but only be sortable in the order in which they were generated by several phantom processes running concurrently. I'm currently approximating this using a concatenation of date and time with millisecondsB but I'm worried about the possibility of two phantoms generating exactly the same key. B Although no collision has been detected so far, I have added an extra check where after generating the key I first test if a record with that key exists. If so IB increment and append aB serial number and repeat the test until aB unique key is found. ItB seems to be working well but I still think there is a better way to do this. B Thanks for any help. B Marco. __ Sent from Yahoo! Mail. A Smarter Email http://uk.docs.yahoo.com/nowyoucan.html --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ _ Yahoo! For Good. Give and get cool things for free, reduce waste and help our planet. Plus find hidden Yahoo! treasure --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
[U2] Guaranteed unique sequential keys
What is the most reliable way to generate unique sequential keys without having to resort to a record on disk updated through readu/write? The keys don't have to be contiguous but only be sortable in the order in which they were generated by several phantom processes running concurrently. I'm currently approximating this using a concatenation of date and time with millisecondsB but I'm worried about the possibility of two phantoms generating exactly the same key. B Although no collision has been detected so far, I have added an extra check where after generating the key I first test if a record with that key exists. If so IB increment and append aB serial number and repeat the test until aB unique key is found. ItB seems to be working well but I still think there is a better way to do this. B Thanks for any help. B Marco. __ Sent from Yahoo! Mail. A Smarter Email http://uk.docs.yahoo.com/nowyoucan.html --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
Re: [U2] Guaranteed unique sequential keys
David, Allen, Edward, thanks for the suggestions but I want to be able to sort theB records in the exact physical order in which they occured.B Using the port or pid numbers could potentially give me the wrong sequence should two events occur within the same millisecond (unless it is ruled out that this is not possible). Regards, Marco. - Original Message From: Edward Brown [EMAIL PROTECTED] To: u2-users@listserver.u2ug.org Sent: Thursday, 24 April, 2008 1:07:13 PM Subject: RE: [U2] Guaranteed unique sequential keys Of course if the port number is added to the end of the key then you can still sort by date/time. In the past I've done an R%5 oconv on both the (internal) date and time before concatenation - this gives you a 10 digit number regardless of the date and time used, so no need for separators... Edward -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David Murray Sent: 24 April 2008 11:53 To: u2-users@listserver.u2ug.org Subject: RE: [U2] Guaranteed unique sequential keys Marco, I have used similar processes in the past, but also have appended port number to the beginning of the key. Separating the fields with '*' so the date and time can also be used as a time stamp rather than duplicate the same info in the record. Cheers, David Murray *B B B B B B Learn and do *B B B Excel and share http://u2blog.org -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Marco Manyevere Sent: Thursday, April 24, 2008 5:55 AM To: u2-users@listserver.u2ug.org Subject: [U2] Guaranteed unique sequential keys What is the most reliable way to generate unique sequential keys without having to resort to a record on disk updated through readu/write? The keys don't have to be contiguous but only be sortable in the order in which they were generated by several phantom processes running concurrently. I'm currently approximating this using a concatenation of date and time with millisecondsB but I'm worried about the possibility of two phantoms generating exactly the same key. B Although no collision has been detected so far, I have added an extra check where after generating the key I first test if a record with that key exists. If so IB increment and append aB serial number and repeat the test until aB unique key is found. ItB seems to be working well but I still think there is a better way to do this. B Thanks for any help. B Marco. B B B __ Sent from Yahoo! Mail. A Smarter Email http://uk.docs.yahoo.com/nowyoucan.html --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ - -- Please remember to recycle wherever possible. Reduce, reuse, recycle, think do you need to print this e-mail? - -- This e-mail and any attachment(s), is confidential and may be legally privileged. It is intended solely for the addressee. If you are not the addressee, dissemination, copying or use of this e-mail or any of its content is prohibited and may be unlawful. If you are not the intended recipient please inform the sender immediately and destroy the e-mail, any attachment(s) and any copies. All liability for viruses is excluded to the fullest extent permitted by law. It is your responsibility to scan or otherwise check this email and any attachment(s). Unless otherwise stated (i) views expressed in this message are those of the individual sender (ii) no contract may be construed by this e-mail. Emails may be monitored and you are taken to consent to this monitoring.B Civica Services Limited, Company No. 02374268; Civica UK Limited, Company No. 01628868 Both companies are registered in England and Wales and each has its registered office at 2 Burston Road, Putney, London, SW15 6AR. - -- --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ __ Sent from Yahoo! Mail. A Smarter Email http://uk.docs.yahoo.com/nowyoucan.html --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
Re: [U2] Guaranteed unique sequential keys
I have already found records that are only 28 milliseconds apart and the server isnt really a big one. Its not so much the clock accuracy thats important but the records must be processed in exactly the same order in which they were written to disk. Thanks for the confirmation. It seems there is no other way to do this. Regards, Marco. Wow - what kind of application needs THAT kind of accuracy?!?...B old man voice Why I remember when two items writing in the same SECOND was a feat! /old man voice In this case, I don't know how you escape having to do a READVU on the item, and only writing on the ELSE clause, and changing the key if a THEN or LOCKED happens -- someone else showed using a READV, but you really have to do a READVU to ensure the items are not hitting at EXACTLY the same time. BASE.KEY = KEY SEQCNT = 1 DO.WRITE = 0 LOOP UNTIL DO.WRITE B READVU TESTINGIT FROM FILENAME, KEY, 0 LOCKED B B * No need to wait, Drop To Key Update B END THEN B B * Need a new key, Drop to Key Update B END ELSE B B * Go! B B EXIT B END B * Once here, start adding sequence data... B KEY = BASE.KEY:*:SEQCNT B SEQCNT += 1 REPEAT WRITE REC ON FILENAME, KEY D3 has a 'System-Wide' Unique ID generator in their SYSTEM() selectiosn... U2 does not.B Darn it. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Marco Manyevere Sent: Thursday, April 24, 2008 7:47 AM To: u2-users@listserver.u2ug.org Subject: Re: [U2] Guaranteed unique sequential keys David, Allen, Edward, thanks for the suggestions but I want to be able to sort theB records in the exact physical order in which they occured.B Using the port or pid numbers could potentially give me the wrong sequence should two events occur within the same millisecond (unless it is ruled out that this is not possible). Regards, Marco. --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ ___ Yahoo! For Good. Give and get cool things for free, reduce waste and help our planet. Plus find hidden Yahoo! treasure http://green.yahoo.com/uk/earth-day/ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
Re: [U2] Piping to a unix command with echo
Problem is STR1 may contain a ', then echo will not know where the string ends, hence the need to escape it. - Original Message From: Mats Carlid [EMAIL PROTECTED] To: u2-users@listserver.u2ug.org Sent: Friday, 15 February, 2008 3:02:59 PM Subject: Re: [U2] Piping to a unix command with echo Unix is supposed to not process any special characters inside single quotes so drop the change commands and use SQUOTE . -- mats Marco Manyevere skrev: Im trying to process the contents of a string generated in Universe with an external program by shelling out to the OS as follows: CHANGE '\' TO '\\' IN STR1 CHANGE '' TO '\' IN STR1 SH.CMD = 'SH -c echo ':QUOTE(STR1):' | ./myscript' EXECUTE SH.CMD CAPTURING RESULT STR1 can contain any characters so to avoid interpratation by the shell I put the two CHANGE statements but it seems some situations are still not covered, for example when STR1 contains \008, the output is wrong. Does anyone know how I can make this foolproof or an alternate method? I am able to get consistent results by writing STR1 to a temp file then running my script with input and output redirection but I want to cut down on unnecessary disk IO. Another question: While STR1 is guaranteed not to exceed 4k, does anyone know the maximum size of the command I can run in this way? Im on AIX. Marco. __ Sent from Yahoo! Mail - a smarter inbox http://uk.mail.yahoo.com --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ __ Sent from Yahoo! Mail - a smarter inbox http://uk.mail.yahoo.com --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
[U2] Piping to a unix command with echo
Im trying to process the contents of a string generated in Universe with an external program by shelling out to the OS as follows: CHANGE '\' TO '\\' IN STR1 CHANGE '' TO '\' IN STR1 SH.CMD = 'SH -c echo ':QUOTE(STR1):' | ./myscript' EXECUTE SH.CMD CAPTURING RESULT STR1 can contain any characters so to avoid interpratation by the shell I put the two CHANGE statements but it seems some situations are still not covered, for example when STR1 contains \008, the output is wrong. Does anyone know how I can make this foolproof or an alternate method? I am able to get consistent results by writing STR1 to a temp file then running my script with input and output redirection but I want to cut down on unnecessary disk IO. Another question: While STR1 is guaranteed not to exceed 4k, does anyone know the maximum size of the command I can run in this way? Im on AIX. Marco. __ Sent from Yahoo! Mail - a smarter inbox http://uk.mail.yahoo.com --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
Re: [U2] Deep and long indentations vs multiple exit points
That was an over simplified example. The additional IF tests usually occur in situations where you can neither AND them together nor put them in a CASE structure. For example: PROCESS.ID: READ RECORD1 FROM FILE1, ID ELSE RETURN IF RECORD1FLD1 NE COND1 THEN RETURN * Some processing to derive NEXT.ID based on RECORD1 * Initialise some variables here READ RECORD2 FROM FILE2, NEXT.ID ELSE RETURN IF RECORD2FLD4 NE RECORD1FLD5 THEN RETURN * Some processing to derive NEXT.ID based on RECORD1 and RECORD2 * Initialise some more variables here READ RECORD3 FROM FILE3, NEXT.ID ELSE RETURN COND3 = RECORD1FLD7 : RECORD2FLD8 IF RECORD3FLD9 NE COND3 THEN RETURN * We passed the tests lets do the processing using RECORD1, 2 and 3 and the * the iniatialised variables ... RETURN The final processing block would end up indented a minimum 6 levels without the early RETURNs. Granted you can put the final part in a GOSUB but even that GOSUB is still deeply indented. If you restructure this into SUBs (which I dont oppose per se) you end up with six SUBs that become more difficult to comprehend as you go further down. You would have to scroll up and down to find out at what point some variables came into being. - Original Message From: David A Barrett [EMAIL PROTECTED] To: u2-users@listserver.u2ug.org Sent: Friday, 30 November, 2007 4:03:16 PM Subject: Re: [U2] Deep and long indentations vs multiple exit points Curious, I would have done: LOOP WHILE READNEXT ID READ RECORD FROM FILE,ID THEN IF ((RECORDFLD.1 EQ COND1) AND (RECORDFLD.2 EQ COND2) AND (RECORDFLD.3 EQ COND3)) THEN RECORDFLD.4 = 'PROCESSED' END END REPEAT If I was worried about the IF statement getting too long, then I'd do this: LOOP WHILE READNEXT ID READ RECORD FROM FILE,ID THEN ANS1 = (RECORDFLD.1 EQ COND1) ANS2 = (RECORDFLD.2 EQ COND2) ANS3 = (RECORDFLD.3 EQ COND3) IF (ANS1 AND ANS2 AND ANS3) THEN RECORDFLD.4 = 'PROCESSED' END END REPEAT While I'm on it, I probably wouldn't do the looping like that either, I'd do this: MORE = @TRUE LOOP READNEXT ID ELSE MORE = @FALSE WHILE (MORE = @TRUE) DO READ RECORD FROM FILE,ID THEN IF ((RECORDFLD.1 EQ COND1) AND (RECORDFLD.2 EQ COND2) AND (RECORDFLD.3 EQ COND3)) THEN RECORDFLD.4 = 'PROCESSED' END END REPEAT Not that I actually think there's anything wrong with the original way it was done... I use CONTINUE all the time when processing records that must meet multiple conditions in a loop. This way my code doesnt look like 'flying geese'. I will write: LOOP WHILE READNEXT ID READ RECORD FROM FILE, ID ELSE CONTINUE IF RECORDFLD.1 NE COND1 THEN CONTINUE IF RECORDFLD.2 NE COND2 THEN CONTINUE IF RECORDFLD.3 NE COND3 THEN CONTINUE RECORDFLD.4 = 'PROCESSED' WRITE RECORD TO FILE, ID REPEAT instead of: LOOP WHILE READNEXT ID READ RECORD FROM FILE,ID THEN IF RECORDFLD.1 EQ COND1 THEN IF RECORDFLD.2 EQ COND2 THEN IF RECORDFLD.3 EQ COND3 THEN RECORDFLD.4 = 'PROCESSED' WRITE RECORD TO FILE, ID END END END END REPEAT Dave Barrett, Lawyers' Professional Indemnity Company --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ __ Sent from Yahoo! - the World's favourite mail http://uk.mail.yahoo.com --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
Re: [U2] Deep and long indentations vs multiple exit points
snip I had to look up the CONTINUE statement. In 25 years I've never used it, and don't even remember seeing it used. Now I know what it does I think it should be banned. /snip I use CONTINUE all the time when processing records that must meet multiple conditions in a loop. This way my code doesnt look like 'flying geese'. I will write: LOOP WHILE READNEXT ID READ RECORD FROM FILE, ID ELSE CONTINUE IF RECORDFLD.1 NE COND1 THEN CONTINUE IF RECORDFLD.2 NE COND2 THEN CONTINUE IF RECORDFLD.3 NE COND3 THEN CONTINUE RECORDFLD.4 = 'PROCESSED' WRITE RECORD TO FILE, ID REPEAT instead of: LOOP WHILE READNEXT ID READ RECORD FROM FILE,ID THEN IF RECORDFLD.1 EQ COND1 THEN IF RECORDFLD.2 EQ COND2 THEN IF RECORDFLD.3 EQ COND3 THEN RECORDFLD.4 = 'PROCESSED' WRITE RECORD TO FILE, ID END END END END REPEAT ___ Yahoo! Answers - Got a question? Someone out there knows the answer. Try it now. http://uk.answers.yahoo.com/ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
Re: [U2] Deep and long indentations vs multiple exit points
My rule of thumb is that I should be able to see on the same page the structure for IF/END, LOOP/REPEAT, READ/END, FOR/NEXT, etc. Otherwise the block in between becomes a good candidate for a GOSUB. snip Than see a single case statement that ran across hundreds of lines of code. I've also done stuff like this: GOSUB OPERATION.1 IF (NOT(ERROR)) THEN GOSUB OPERATION.2 IF (NOT(ERROR)) THEN GOSUB OPERATION.3 IF (NOT(ERROR)) THEN GOSUB OPEARTION.4 END END END Which I think nicely splits out the control structure and makes it clear at a glance how the program works. /snip ___ Yahoo! Answers - Got a question? Someone out there knows the answer. Try it now. http://uk.answers.yahoo.com/ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
[U2] Deep and long indentations vs multiple exit points
There has been a lot said recently about styles, standards and good practice and I wonder what your take is on deeply indented routines with a common exit point versus unindented routines but with multiple exit points. I almost always prefer the later and find it much easier to follow. I come accross several routines or GOSUBs that get indented from line 1 right up to the end and I always change that to an early return and remove the indentation. Below are some examples: PROCESS.ID: READ RECORD FROM FILE, ID THEN * Several lines of indented code to calculate DESIRED.VALUE IF RECORDFIELD.NO EQ DESIRED.VALUE THEN * Several lines of even more indented code END END RETURN versus: PROCESS.ID: READ RECORD FROM FILE, ID ELSE RETURN END * Several lines of unindented code to calculate DESIRED.VALUE IF RECORDFIELD.NO NE DESIRED.VALUE THEN RETURN END * Several lines of unindented processing code RETURN Or LOOP READ RECORD FROM FILE, ID THEN IF RECORDFIELD.NO EQ 1 THEN * Processing code END END REPEAT UNTIL SOMECONDITION Versus: LOOP READ RECORD FROM FILE, ID ELSE CONTINUE END IF RECORDFIELD.NO NE 1 THEN CONTINUE END * Processing code REPEAT UNTIL SOMECONDITION ___ Yahoo! Answers - Got a question? Someone out there knows the answer. Try it now. http://uk.answers.yahoo.com/ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
[U2] [jBASE] SELECT operator precedence
I expected the following three SELECT statements to be equivalent but they dont seem to be: CLEARSELECT [528] List '0' cleared. jsh rbk ~ --SELECT ACCOUNT WITH CATEGORY EQ 1000 OR GE 1002 AND LE 173218 Records selected CLEARSELECT [528] List '0' cleared. jsh rbk ~ --SELECT ACCOUNT WITH CATEGORY GE 1002 AND LE OR EQ 1000 102160 Records selected CLEARSELECT [528] List '0' cleared. jsh rbk ~ --SELECT ACCOUNT WITH CATEGORY (GE 1002 AND LE ) OR EQ 1000 173218 Records selected The second select seems to be ignoring the OR EQ 1000 as it is returning the same number of records with: CLEARSELECT [528] List '0' cleared. jsh rbk ~ --SELECT ACCOUNT WITH CATEGORY GE 1002 AND LE 102160 Records selected I expect the brackets around (GE 1002 AND LE ) to be superfluous (only required to make the syntax clearer) but they seem to be having an impact on the number of records selected. Can someone please clarify. Regards, Marco. ___ Yahoo! Answers - Got a question? Someone out there knows the answer. Try it now. http://uk.answers.yahoo.com/ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
[U2] [UV] Permutations and Combinations
Hi Everyone. I need help coming up with a UV BASIC algorithm to find combinations of amounts that add up to a given figure. For example given the table below: 1 .33 2 5000.00 3 6000.00 4 7233.49 5 8000.00 6 2.00 7 16999.99 8 1.00 9 1000.00 a) If the given amount is 16999.99, I can say with certainty that only entry 7 makes up the total. I want the program to print something like: Combination 1: -- 7 16999.99 * b) Similary if the given amount is 10566.82, the only possible combination is that of entries 1 and 4 which should be printed thus: Combination 1: --- 1 .33 * 4 7233.49 * c) If the given amount is 11000, The combination of entries 2,3 or 8,9 should be printed as follows: Combination 1: -- 2 5000.00 3 6000.00 Combination 2: -- 8 1.00 9 1000.00 d) If the given amount is 14333.33, the program should print: Combination 1: -- 1 .33 * 2 5000.00 3 6000.00 Combination 2: -- 1 3.33 * 8 1.00 9 1000.00 e) If the given amount is 3.00, the program should print: Combination 1: -- 6 2.00 8 1.00 * Combination 2: -- 2 5000.00 3 6000.00 5 8000.00 8 1.00 * 9 1000.00 An '*' should be printed against all amounts that appear in all possible combinations. The table of amounts could contain anything up to 2000 entries and the differences being investigated are usually so unique that even visual identification will work except when 2 or more entries are involved. The program should stop finding more combinations once the number of unique entries in the combinations found so far exceed 10. After the analysis has run for about 2 minutes, an estiamate of how long the total analysis is going to take should be given with an option to quit the analysis. Thanks for any help. ___ Yahoo! Answers - Got a question? Someone out there knows the answer. Try it now. http://uk.answers.yahoo.com/ --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
[U2] Difference between two TIMEDATES in seconds
Hello everyone, Can someone help me with this. I need a way to calculate the difference between two TIMEDATE() and return the results in seconds. The biggest difference I expect between the two time dates is 100 days. Thanks and regards, Marco. ___ The all-new Yahoo! Mail goes wherever you go - free your email address from your Internet provider. http://uk.docs.yahoo.com/nowyoucan.html --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
Re: [U2] Difference between two TIMEDATES in seconds
Thanks its the last formula that I was actually failing to visualise. I thought it would involve some complicated algorithm. Thanks, Marco. - Original Message From: Perry Taylor [EMAIL PROTECTED] To: u2-users@listserver.u2ug.org Sent: Friday, 16 March, 2007 1:31:10 PM Subject: RE: [U2] Difference between two TIMEDATES in seconds Marco, BEG.TIMEDATE = TIMEDATE() END.TIMEDATE = TIMEDATE() BEG.TIME = ICONV(FIELD(BEG.TIMEDATE, ' ', 1, 1), 'MT') BEG.DATE = ICONV(FIELD(BEG.TIMEDATE, ' ', 2, 3), 'D') END.TIME = ICONV(FIELD(END.TIMEDATE, ' ', 1, 1), 'MT') END.DATE = ICONV(FIELD(END.TIMEDATE, ' ', 2, 3), 'D') ET = END.TIME - BEG.TIME + (END.DATE - BEG.DATE) * 86400 This assumes TIMEDATE() outputs in the format hh:mm:ss dd mmm . Adjust the code if your system is configured differently. Is this what you are looking for? Perry -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Marco Manyevere Sent: Friday, March 16, 2007 6:25 AM To: u2-users@listserver.u2ug.org Subject: [U2] Difference between two TIMEDATES in seconds Hello everyone, Can someone help me with this. I need a way to calculate the difference between two TIMEDATE() and return the results in seconds. The biggest difference I expect between the two time dates is 100 days. Thanks and regards, Marco. ___ The all-new Yahoo! Mail goes wherever you go - free your email address from your Internet provider. http://uk.docs.yahoo.com/nowyoucan.html --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. ZirMed, Inc. has strict policies regarding the content of e-mail communications, specifically Protected Health Information, any communications containing such material will be returned to the originating party with such advisement noted. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ ___ Inbox full of unwanted email? Get leading protection and 1GB storage with All New Yahoo! Mail. http://uk.docs.yahoo.com/nowyoucan.html --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
[U2] STRVAR[4,1] = ' JBASE and UNIVERSE differences
If I run this piece of code: STRVAR = ABCDEFG STRVAR[4, 1] = ;* Assign NUL character PRINT STRVAR PRINT LEN(STRVAR) On JBASE I get: ABCEFG 6 On UV I get: ABC EFG 7 Which is correct behaviour? (I prefer the jbase behaviour). I only have the online help for UV and cant quite find the documentation for this in the JBASE manuals. The UV manuals arent clear on what should happen. On UV, PRINT SEQ(STRVAR[4, 1]) prints 32. Regards, Marco. --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
RE: [U2] jBASE : PRINT FMT('6.71509648127128E-02', 'R9') error
Thanks all, I settled for: Base = Number['E', 1, 1] Factor = Number['E', 2, 1] Result = Base * PWR(10, Factor) Regards, Marco Brian Leach [EMAIL PROTECTED] wrote: Chuck, You were right first time. Must be the hour. Number = 1.234567E+14 Base = Number[E,1,1] Factor = Number[E,2,1] Multiplier = 1 : Str(0, Factor) If Factor 0 Then Result = Base / Multiplier End Else Result = Base * Multiplier End Crt Result Should give: 1234567 Brian --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ - To help you stay safe and secure online, we've developed the all new Yahoo! Security Centre. --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
[U2] jBASE : PRINT FMT('6.71509648127128E-02', 'R9') error
I'm processing numeric data from an excel spreadsheet using jbase and the
statement PRINT FMT('6.71509648127128E-02', 'R9') gives non numeric value when
numeric expected.
I have compiled the same statement into a Universe test program and I'm
getting the expected result of 0.067150965.
Does anyone have suggestions how to get the correct result in jbase? I'm
reading the excel values using an ADO driver interface and have no way of
changing how the data is presented to me from the interface.
Thanks for any help, Marco.
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Re: [U2] Finding last day of month
Will, This was exactly my method, except I was adding 35 days (it could have been 30 as well) to the first day of the month to get to next month. I also dislike the lookup table idea i.e. 31,28,30,31,etc, the leap year or 12th month logic. Thanks for all the responses guys. [EMAIL PROTECTED] wrote: Ok smartass you say let's see you do it First of all, you can always get from the month you are in, to the next month by simply add 30 days to the middle of the month. And you never need to worry about leap years nor about 12th month logic Input Date ; * format mmdd Middleofthismonth = date[1,6]:'15' I.Middle = Iconv(Middleofthismonth,'D') I.Next = I.Middle + 30 NextMonth = Oconv(I.NEXT,'D2-') FirstDayNextMonth = NextMonth[1,2]:'01':NextMonth[5,2] I.FirstDay = Iconv(FirstDayNextMonth,'D') I.LastDayPreviousMonth = I.FirstDay - 1 Now can we scrunch this down? Input Date ; *format mmdd NextMonth = Oconv(Iconv(date[1,6]:'15','D') + 30,'D2') I.LastDayPreviousMonth = Iconv(NextMonth[1,2]:'01':NextMonth[5,2],'D') + 1 Do I win the big stuffed pickle? Will Johnson Fast Forward Technologies --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ - Yahoo! Messenger NEW - crystal clear PC to PCcalling worldwide with voicemail --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
[U2] Finding last day of month
Hi, Given a date like 20040203, I want to return the last valid date for that month and year (20040229 in this case). What is the shortest code fragment to achieve this? At the moment I'm replacing the day with 01, then iconv, add 35 days to the internal date and then oconv and replace the day again with 01. I'm then on the first day of the next month. I then iconv, subtract 1 day and oconv. Thanks for any help. - Yahoo! Messenger NEW - crystal clear PC to PCcalling worldwide with voicemail --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
Re: [U2] [UV] making 00001 our of 1
...and also watch out for: 3: A = FMT(5, '60R') 3 0 : 09C format 5 60R = A 4: B = FMT(5, 6'0'R) 4 8 : 09C format 5 6'0'R = B [EMAIL PROTECTED] wrote: Chuck, Now if only Jbase had something like VLIST (sigh...). Regards, Charlie Noah [EMAIL PROTECTED] (mailto:[EMAIL PROTECTED]) writes: Speaking of Y2K-related programs, I too wrote one, but it searched the VLIST of the program. That way I didn't care about spacing, etc.. You might find that method helpful. For example, these 4 source lines compile to the same PCODE: VLIST CDS.BP MARK 1: NBR = NBR 5'0'R 1 0 : 09C format NBR 5'0'R = NBR 2: NBR=NBR5'0'R 2 8 : 09C format NBR 5'0'R = NBR 3: NBR = NBR \5'0'R\ 3 00010 : 09C format NBR 5'0'R = NBR 4: NBR = NBR 5'0'R 4 00018 : 09C format NBR 5'0'R = NBR 5: NBR = FMT( NBR, 5'0'R ) 5 00020 : 09C format NBR 5'0'R = NBR 6 00028 : 190 stop --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ Send instant messages to your online friends http://uk.messenger.yahoo.com --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
[U2] [UV]Unable to get process lock semaphore
Hi, I get the error message 'Unable to get process lock semaphore' in a complicated application for which I have no source code. 1) What could be the cause of my problem? The only setup parameter I see linked to process semaphores is PSEMNUM which is set to 64. Can I increase this? What unix parameters are related if any? 2) How do I diagnose how many semaphores are actually being used? I'm on Unixware and the system says SEMAPHORE.STATUS is not supported. 3) How can I intentionally cause this problem in my own code? Thanks for any help. Marco. - ALL-NEW Yahoo! Messenger - all new features - even more fun! --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
[U2] [UV] LIST.LOCKS - Unable to get process lock semaphore
In addition to my message below, when I enter the UV command LIST.LOCKD I get the following: LIST.LOCKS Unable to get process lock semaphore. [EACCES] Permission denied Unable to get process lock semaphore. [EACCES] Permission denied [192.168.1.1: remote disconnect] Marco Manyevere [EMAIL PROTECTED] wrote: Hi, I get the error message 'Unable to get process lock semaphore' in a complicated application for which I have no source code. 1) What could be the cause of my problem? The only setup parameter I see linked to process semaphores is PSEMNUM which is set to 64. Can I increase this? What unix parameters are related if any? 2) How do I diagnose how many semaphores are actually being used? I'm on Unixware and the system says SEMAPHORE.STATUS is not supported. 3) How can I intentionally cause this problem in my own code? Thanks for any help. Marco. - ALL-NEW Yahoo! Messenger - all new features - even more fun! --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ - ALL-NEW Yahoo! Messenger - all new features - even more fun! --- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
RE: [U2] How to setup MALLOCTRACING?
The COMO, SAVEDLISTS and HOLD files are simple type 19 (directory) files. Can they get corrupted and what tool should I use to check for this? Glenn Herbert [EMAIL PROTECTED] wrote:At 10:44 AM 11/30/2004, you wrote: I can understand an edit of a 30mb file failing but the delete is a bit strange. Sounds like the file has a corruption; the DELETE code simply does a READVU of the item on field 0 (the key) so it doesn't actually read the entire record into memory. Maybe check the file for corruption. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Marco Manyevere Sent: 30 November 2004 13:46 To: [EMAIL PROTECTED] Subject: RE: [U2] How to setup MALLOCTRACING? The problem shows itself up in 2 ways: 1) DELETEing or EDiting a record from COMO, SAVEDLISTS, or HOLD thats more than 30Mb fails with 'Available memory exceeded' 2) A number of reports on the system use the TEMP.LIST-1 = TEMP.STR construct and these are failing for big files. Unfortunately I cant change this because I have no access to the source code and it would be a major major exercise based on the size of the system. Every time you append (which is what -1 implies), you actually have to make a copy of the existing string (TEMP.LIST), append to the copy, destroy the original, then rename the copy. This means that you can have, at times, two full copies of the item in memory. For big items, you will exhaust memory rather quickly. Memory in universe, for those systems that use the universe memory manager and NOT the system memory manager, is limited to the amount of memory dictated by the placement of the system disk shared memory segment (i believe its 0xacec). On most systems this will be well below actual physical memory. I don't believe that the uvconfig file for universe has a tunable to change the shared memory location; I know for DSEngine we rewrote all the attach code so that we could easily relocate the segments as well as run multiple versions and copies of the engine on a single system. In the past we had to actually rebuild universe with different attach points for the segments as they couldn't be adjusted in the field; if you can't change the offset values in the uvconfig file, then the only recourse would be to get a new build from IBM with adjusted offset values, or don't have such large items. Good luck! Regards, Marco. Adrian Matthews wrote: What are you running within Universe? Seems like quite a lot of memory to be using, none of our processes (on Windows or Unix) ever go over 15mb of physical memory. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Marco Manyevere Sent: 30 November 2004 07:42 To: [EMAIL PROTECTED] Subject: [U2] How to setup MALLOCTRACING? Hi Everyone, I'm still battling with the 'Available memory exceeded' problem on Sco Unixware. I haven't been able to receive feedback from anyone on the list running UV on Unixware on how they have configured their system and how much memory they can be mallocated in one big chuck. I can only get 30Mb max before the memory exceeded error is thrown even though I have 8 Gig RAM and am the only user on the system. The system runs nothing else but UV and all possible Unixware parameters must be optimised for UV. I want to turn on MALLOCTRACING to 1 in the hope that I will be able to find out the exact nature of the failure. I have tried but then UV fails to start with a missing parameter message. Does anyone know how to setup the malloctracing? Where does the tracing information get written to and how to interpret it? Thanks for any help. Regards, Marco. - Win a castle for NYE with your mates and Yahoo! Messenger --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/ The information contained in this email is strictly confidential and for the use of the addressee only, unless otherwise indicated. If you are not the intended recipient, please do not read, copy, use or disclose to others this message or any attachment. Please also notify the sender by replying to this email or by telephone +44 (0)20 7896 0011 and then delete the email and any copies of it. Opinions, conclusions (etc.) that do not relate to the official business of this company shall be understood as neither given nor endorsed by it. IG Markets Limited and IG Index Plc are authorised and regulated by the Financial Services Authority and, in Australia, by the Australian Securities and Investments Commission. --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/ - ALL-NEW Yahoo! Messenger - all new features - even more fun! --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/ The information contained in this email is strictly confidential and for the use
[U2] How to setup MALLOCTRACING?
Hi Everyone, I'm still battling with the 'Available memory exceeded' problem on Sco Unixware. I haven't been able to receive feedback from anyone on the list running UV on Unixware on how they have configured their system and how much memory they can be mallocated in one big chuck. I can only get 30Mb max before the memory exceeded error is thrown even though I have 8 Gig RAM and am the only user on the system. The system runs nothing else but UV and all possible Unixware parameters must be optimised for UV. I want to turn on MALLOCTRACING to 1 in the hope that I will be able to find out the exact nature of the failure. I have tried but then UV fails to start with a missing parameter message. Does anyone know how to setup the malloctracing? Where does the tracing information get written to and how to interpret it? Thanks for any help. Regards, Marco. - Win a castle for NYE with your mates and Yahoo! Messenger --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/
[U2] [UV] How far can STR1 := SPACE(1000000) grow?
Please try the following on your server and find out how far you can go before malloc fails. On my Unixware server with 8Gb RAM, I can only go as far as 24 to 30 MB before the process fails with 'Available memory exceeded'. Running 'sar -r' at the Unix prompt shows me over 3 Gig of RAM is still free. Are there any parameters I can change to increase the limit? On my XP latop with 512MB RAM, I can run the program upto 250MB then it begins to really crawl, taking upto 15 seconds to go through the loop. BLOCK = SPACE(100) STR1 = '' FOR I = 1 TO 100 STR1 := BLOCK PRINT I:' STR1 SIZE = ':100*I NEXT RETURN END - Moving house? Beach bar in Thailand? New Wardrobe? Win #10k with Yahoo! Mail to make your dream a reality. --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/
[U2] [UV] How far can STR1 := SPACE(1000000) grow?
Please try the following on your server and find out how far you can go before malloc fails. On my Unixware server with 8Gb RAM, I can only go as far as 24 to 30 MB before the process fails with 'Available memory exceeded'. Running 'sar -r' at the Unix prompt shows me over 3 Gig of RAM is still free. Are there any parameters I can change to increase the limit? On my XP latop with 512MB RAM, I can run the program upto 250MB then it begins to really crawl, taking upto 15 seconds to go through the loop. BLOCK = SPACE(100) STR1 = '' FOR I = 1 TO 100 STR1 := BLOCK PRINT I:' STR1 SIZE = ':100*I NEXT RETURN END - ALL-NEW Yahoo! Messenger - all new features - even more fun! --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/
[U2] [UV] How far can STR1 := SPACE(1000000) grow?
Please try the following on your server and find out how far you can go before malloc fails. On my Unixware server with 8Gb RAM, I can only go as far as 24 to 30 MB before the process fails with 'Available memory exceeded'. Running 'sar -r' at the Unix prompt shows me over 3 Gig of RAM is still free. Are there any parameters I can change to increase the limit? On my XP latop with 512MB RAM, I can run the program upto 250MB then it begins to really crawl, taking upto 15 seconds to go through the loop. BLOCK = SPACE(100) STR1 = '' FOR I = 1 TO 100 STR1 := BLOCK PRINT I:' STR1 SIZE = ':100*I NEXT RETURN END - ALL-NEW Yahoo! Messenger - all new features - even more fun! --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/
RE: [U2] [UV] How far can STR1 := SPACE(1000000) grow?
Thanks guys for all the responses. Can someone tell me why I'm getting a miserly 30MB on a system with 8Gb. Anyone try this on unixware or sco openserver? If you get anything different for unixware/sco, please I want to know how your system is configured. [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:Wendy Smoak wrote: 1036 STR1 SIZE = 103600 Error when creating a shared memory segment (size=1166625024), errno=22 Do I win??? No Wendy - you cheated and used UniData where variable space is allocated (and garbage collected) from shared memory by smm which means that you can tune this sort of thing in udtconfig. On UniVerse variable space is malloc()ed (or an equivalent) so: 1) the limits are different - probably kernel or maybe ulimit based on UNIX; and 2) there is a further issue that after you've created this large variable, you may get strange behaviour out of other code which normally works fine because you've already used up the memory available to you from the heap. Cheers, Ken --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/ - Win a castle for NYE with your mates and Yahoo! Messenger --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/
[U2] [UV] Help with 'Available memory exceeded' on 8Gig Ram server
Hi Everybody, A crucial job has failed on a client server with the error message 'Available memory exceeded'. The machine has 8Gb RAM and I do not see how this could be happening. I have also noticed that DELETE(ing) or ED(iting) a record more than 16MB will fail with the same error message even when I'm the only user on the system. What UV/Unix tunables must I change to solve this problem if any? Regards, Marco. - Moving house? Beach bar in Thailand? New Wardrobe? Win #10k with Yahoo! Mail to make your dream a reality. --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/
Re: [U2] [UV] Help with EVAL in SELECT statement
Martin, here is the uparrow mode for the field in question: : 25 0025: 0.000225 : ^ Up-arrow display mode= enabled 0025: 0.000225 : There is nothing unusual as far as I can see. Field 5 of the dict record for BALANCE has 19R and field 3 is blank. Martin Phillips [EMAIL PROTECTED] wrote: Can't remember whether I said this yesterday but EVAL takes on the properties of the first field referenced in the expression. Hence, if BALANCE is defined as having an MD2 conversion, so will EVAL ABS(BALANCE) It is interesting that the value for BALANCE shown in the original email has more decimal places than any other field. My money is on the data stored in the record having a non-printing character in it. The conversion then fails, returning the original data. I have deleted all the old messages from this thread so I cannot remember who originally posted it. Can you try going into ED for the relevant record, type ^ to switch into up arrow mode so that non-printing characters are displayed, and then look at the data. Martin Phillips Ladybridge Systems 17b Coldstream Lane, Hardingstone, Northampton NN4 6DB +44-(0)1604-709200 --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/ - ALL-NEW Yahoo! Messenger - all new features - even more fun! --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/
RE: [U2] [UV] Help with EVAL in SELECT statement
Tom, Here is a CT of the item. The field we are interested in is 25. Press any key to continue... 0022 0023 0.000225 0024 0.000225 0025 0.000225 0026 0.000225 0027 0.000225 Tom Dodds [EMAIL PROTECTED] wrote: What does the real data look like. CT that item, 0048108, and lets see how the data is really stored. Tom Dodds [EMAIL PROTECTED] 630-235-2975 Cell 708-482-4510 Office -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Marco Manyevere Sent: Wednesday, November 17, 2004 12:57 PM To: [EMAIL PROTECTED] Subject: RE: [U2] [UV] Help with EVAL in SELECT statement Thanks for the suggestion but I want to know is why this doesnt work. What looks broken? Allen E. Elwood wrote:Looks broken. Why not make a dict to round it up to MD2 and then just select everything with a balance not equal to zero? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Marco Manyevere Sent: Wednesday, November 17, 2004 08:10 To: [EMAIL PROTECTED] Subject: Re: [U2] [UV] Help with EVAL in SELECT statement Martin, Here again: SELECT F.ACCOUNT WITH EVAL ABS(BALANCE) GT 0.01 15480 record(s) selected to SELECT list #0. LIST F.ACCOUNT EVAL ABS(BALANCE) 0955485 1972.55 0971405 114629.25 0987328 45803.12 0048108 0.0002 2006146 54125.35 SELECT F.ACCOUNT WITH EVAL ABS(BALANCE) GT 0.01 15480 record(s) selected to SELECT list #0. LIST F.ACCOUNT EVAL QUOTE(BALANCE) 0955485 1972.55 0971405 114629.25 0987328 45803.12 0048108 0.000225 2006146 54125.35 Here is the DICT record for BALANCE 0001: D 0002: 25 0003: 0004: BALANCE 0005: 19R 0006: S Bottom at line 6. Martin Phillips wrote: Hi Brian, I can see that this will run on a bit I think Mats is correct. The 'field' in question is an EVAL expression, so doesn't have its own conversion code unless you explicitly state it using the CONV keyword. Hence the confusion over the result. EVAL takes on the properties of the first item in the expression, in this case BALANCE. Regardless of what it is doing, the output of displaying BALANCE should be equivalent to the value used in the comparison. It would be interesting to see the results of EVAL QUOTE(BALANCE) as I thing this is going to show that the field is faulty in some way. Martin Phillips Ladybridge Systems 17b Coldstream Lane, Hardingstone, Northampton NN4 6DB +44-(0)1604-709200 --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/ - Moving house? Beach bar in Thailand? New Wardrobe? Win #10k with Yahoo! Mail to make your dream a reality. --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/ --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/ - Moving house? Beach bar in Thailand? New Wardrobe? Win #10k with Yahoo! Mail to make your dream a reality. --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/ --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/ - Moving house? Beach bar in Thailand? New Wardrobe? Win #10k with Yahoo! Mail to make your dream a reality. --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/
[U2] [UV] Help with EVAL in SELECT statement
Hi All, I typing the following commands in succession: SELECT F.ACCOUNT WITH EVAL ABS(BALANCE) GT 0.01 15480 record(s) selected to SELECT list #0. LIST F.ACCOUNT EVAL ABS(BALANCE) Here is part of the output: 0955485 1972.55 0971405 114629.25 098732845803.12 0048108 0.0002 200614654125.35 I'm wondering why the record with balance 0.0002 got selected. Can someone help me out? Regards, Marco. - Moving house? Beach bar in Thailand? New Wardrobe? Win #10k with Yahoo! Mail to make your dream a reality. --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/
Re: [U2] [UV] Help with EVAL in SELECT statement
Martin, Here again: SELECT F.ACCOUNT WITH EVAL ABS(BALANCE) GT 0.01 15480 record(s) selected to SELECT list #0. LIST F.ACCOUNT EVAL ABS(BALANCE) 0955485 1972.55 0971405 114629.25 098732845803.12 0048108 0.0002 200614654125.35 SELECT F.ACCOUNT WITH EVAL ABS(BALANCE) GT 0.01 15480 record(s) selected to SELECT list #0. LIST F.ACCOUNT EVAL QUOTE(BALANCE) 0955485 1972.55 0971405 114629.25 0987328 45803.12 0048108 0.000225 2006146 54125.35 Here is the DICT record for BALANCE 0001: D 0002: 25 0003: 0004: BALANCE 0005: 19R 0006: S Bottom at line 6. Martin Phillips [EMAIL PROTECTED] wrote: Hi Brian, I can see that this will run on a bit I think Mats is correct. The 'field' in question is an EVAL expression, so doesn't have its own conversion code unless you explicitly state it using the CONV keyword. Hence the confusion over the result. EVAL takes on the properties of the first item in the expression, in this case BALANCE. Regardless of what it is doing, the output of displaying BALANCE should be equivalent to the value used in the comparison. It would be interesting to see the results of EVAL QUOTE(BALANCE) as I thing this is going to show that the field is faulty in some way. Martin Phillips Ladybridge Systems 17b Coldstream Lane, Hardingstone, Northampton NN4 6DB +44-(0)1604-709200 --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/ - Moving house? Beach bar in Thailand? New Wardrobe? Win #10k with Yahoo! Mail to make your dream a reality. --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/
RE: [U2] [UV] Help with EVAL in SELECT statement
Thanks for the suggestion but I want to know is why this doesnt work. What looks broken? Allen E. Elwood [EMAIL PROTECTED] wrote:Looks broken. Why not make a dict to round it up to MD2 and then just select everything with a balance not equal to zero? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Marco Manyevere Sent: Wednesday, November 17, 2004 08:10 To: [EMAIL PROTECTED] Subject: Re: [U2] [UV] Help with EVAL in SELECT statement Martin, Here again: SELECT F.ACCOUNT WITH EVAL ABS(BALANCE) GT 0.01 15480 record(s) selected to SELECT list #0. LIST F.ACCOUNT EVAL ABS(BALANCE) 0955485 1972.55 0971405 114629.25 0987328 45803.12 0048108 0.0002 2006146 54125.35 SELECT F.ACCOUNT WITH EVAL ABS(BALANCE) GT 0.01 15480 record(s) selected to SELECT list #0. LIST F.ACCOUNT EVAL QUOTE(BALANCE) 0955485 1972.55 0971405 114629.25 0987328 45803.12 0048108 0.000225 2006146 54125.35 Here is the DICT record for BALANCE 0001: D 0002: 25 0003: 0004: BALANCE 0005: 19R 0006: S Bottom at line 6. Martin Phillips wrote: Hi Brian, I can see that this will run on a bit I think Mats is correct. The 'field' in question is an EVAL expression, so doesn't have its own conversion code unless you explicitly state it using the CONV keyword. Hence the confusion over the result. EVAL takes on the properties of the first item in the expression, in this case BALANCE. Regardless of what it is doing, the output of displaying BALANCE should be equivalent to the value used in the comparison. It would be interesting to see the results of EVAL QUOTE(BALANCE) as I thing this is going to show that the field is faulty in some way. Martin Phillips Ladybridge Systems 17b Coldstream Lane, Hardingstone, Northampton NN4 6DB +44-(0)1604-709200 --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/ - Moving house? Beach bar in Thailand? New Wardrobe? Win #10k with Yahoo! Mail to make your dream a reality. --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/ --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/ - Moving house? Beach bar in Thailand? New Wardrobe? Win #10k with Yahoo! Mail to make your dream a reality. --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/
Re: [U2] Readu lock lost after 1 hour.
I have tested your programs with one major difference on my UV9.6: PGM2 eventually abandoms the wait but does not go into the THEN block, i.e., the 'READU END' is not displayed. As per Martin's email, the time to wait is controlled by the LOCK.WAIT. Sibut Pascal [EMAIL PROTECTED] wrote:Dear all, I had problem in a batch application so I have written 2 small test programs PGM1 OPEN TEST TO TEST ELSE STOP CANT OPEN TEST READU R.TEST FROM TEST,1 THEN LOOP SLEEP 60 REPEAT END END PGM2 OPEN TEST TO TEST ELSE STOP CANT OPEN TEST CRT OCONV(TIME(),MTS) : READU START READU R.TEST FROM TEST,1 THEN CRT OCONV(TIME(),MTS) : READU END END END I have launch PGM1 on a first telnet session and let it run. Then, I have launch PGM2 on a second telnet session. I was expecting the PGM2 waits until I kill PGM1. Instead of that I get the following output from PGM2: 10:56:08 READU START 11:56:09 READU END - It seems the locks are automatically released by UV after one hour ??? Is something wrong in my configuration ? Does this mean the READU locks are released after one hour ? Is there a tunable parameter to adjust this delay ? Can anybody help me ? I am using UV 9.5.2.1 on an alpha server Unix tru64 V5.1 Thanks and regards, == The EFG Mail Gateway made the following annotation(s). == Disclaimer This e-mail is confidential. If you are not the intended recipient, you should not copy it, re-transmit it, use it or disclose its contents, but should return it to the sender immediately and delete the copy from your system. EFG is not responsible for, nor endorses, any opinion, recommendation, conclusion, solicitation, offer or agreement or any information contained in this communication. EFG cannot accept any responsibility for the accuracy or completeness of this message as it has been transmitted over a public network. If you suspect that the message may have been intercepted or amended, please call the sender. Should you require any further information, please contact the Compliance Manager on [EMAIL PROTECTED] === --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/ - ALL-NEW Yahoo! Messenger - all new features - even more fun! --- u2-users mailing list [EMAIL PROTECTED] To unsubscribe please visit http://listserver.u2ug.org/
