RE: slightly OT: visual c++ and null values
Maria,
They need to use indicator variables. This is documented in the Pro*C
documentation. The application that I wrote is two years old but is still
operational against a 8.1.x database. I tried to find a small snippet of code
to include but since I haven't worked on the application in about two years
couldn't find anything quickly.
The gist of it is though that you define short integer variables in addition to
your variable to hold your column value. The column is then referenced in the
select/update statement as a concatenation of the two variables.
:column_name:indicatorthen if the indicator is 0 the column variable has
undefined value (NULL). For inserts/updates the user sets the indicator to -1
and Pro*C interpretes the value as a NULL.
I admit that my version of Visual C++ is old 5.0 and my version of Pro*C is
8.0.5 but this does work against a 8.1.x database (on Compaq) but I haven't seen
anything to indicate that they were getting away from indicator variables.
Shari Dishop
SAP ABAP Development - Project Systems Team
Northrop Grumman Information Technology
Baltimore, MD
hello!
our developers here are requesting that I put defaults (' ' for
chars/varchars, 0 for numbers, etc) in place instead of nulls in all
columns that would supposedly allow null values...
they are using visual c++ and they say that they cannot make visual c++
retreive null values...
i am very hesitant in implementing this...
i have no knowledge whatsoever of visual c++ and don't know if this is
true...
i'd like to know if anyone had encountered this same problem before?
or maybe someone can tell me if there is any truth to what our
developers are saying...
oracle817 on solaris7
thanks =)
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Re: Slightly OT: Capturing a failed status of an ftp process
OK. Here goes. This is the relevant portion of the ftp script. The SAP ABAP program executes a system call to execute this script. It passes in things like the userid, remote host name, remote and local file names, password, get or put command, etc. This is the piece of the script that we modified to add the status command. ftp - n $openhost endofdata /tmp/ftpout user $userid $putcmds status bye endofdata cat /tmp/ftpout exit 0 The output of the status command and any errors generated from the ftp command itself are passed back to the calling SAP program by doing the cat command. SAP returns the output in an internal table format. One table record for each line of the file. Here is the relevant SAP ABAP code that is parsing the returned data. It's doing some other things for our environment so I just pulled the lines that are looking at the returned information. loop at tabl. temp_line = tabl-line. translate temp_line to upper case. if sy-tabix = 1. "Connected status should be the first line if temp_line cs 'CONNECTED TO'. "This is a substring command meaning contains connect_sw = '1'. elseif temp_line cs 'NOT CONNECTED'. noconnect_sw = '1'. *else"Must be other mesages in first line. May be error endif. endif. endloop. if connect_sw = 0. if noconnect_sw = 1. write: / 'The file transfer appears to have been interupted. ', 'Please check the completeness of your data.'. skip 2. endif. endif. The key is looking for the CONNECTED TO or NOT CONNECTED message as the first line returned. Hope this helps. Shari Dishop SAP ABAP - Project Systems Team (Former DBA/Designer/Developer) Logicon - A Northrop Grumman Company Baltimore, MD RE: Would it be possible for you to send me a copy of how you are using the status command? I have tried, but I am obviously doing it wrong, as I am not getting what I expect. Terry Shari Dishop wrote: Terry, I worked on what I think is a similar process. We are running SAP and need to be able to ftp files on and off of our unix SAP servers. Someone in the past wrote an SAP ABAP program that does all of the set up then calls a unix shell script to perform the ftp. If the ftp command truely failed to connect we had no problem getting back a failed error message to the SAP program. But where we ran into some problems was when the transfer command would start but get interrupted for some unknown reason and never fully complete the transfer. This was noticed by accident one day when someone was checking a report run off of one of the data transfers and there were only a few hundred records in the table to be processed instead of a few hundred thousand. I was then asked to come up with a solution that would look for an unexpected termination of the ftp connection. After lots of searching and getting one of our local unix gurus involved (I have worked directly on a unix platform), we implemented the following. It is not the best but it does seem to be working. We added a step to the ftp script. This step is a status command that is executed directly after the get or put command. This returns information about the ftp connection itself. It also returns a message if it is no longer connected. This output was passed back to the SAP program and parsed. If I had a message indicating that the remote host was still connected, I assumed that the get or put executed completely. If on the other hand I received the message indicating that the remote system was no longer connected I generated an error message from the program so that the user could check the data. Shari Dishop SAP ABAP - Project Systems Team Logicon - A Northrop Grumman Company Baltimore, MD -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Shari Dishop INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: Slightly OT: Capturing a failed status of an ftp process
Terry, I worked on what I think is a similar process. We are running SAP and need to be able to ftp files on and off of our unix SAP servers. Someone in the past wrote an SAP ABAP program that does all of the set up then calls a unix shell script to perform the ftp. If the ftp command truely failed to connect we had no problem getting back a failed error message to the SAP program. But where we ran into some problems was when the transfer command would start but get interrupted for some unknown reason and never fully complete the transfer. This was noticed by accident one day when someone was checking a report run off of one of the data transfers and there were only a few hundred records in the table to be processed instead of a few hundred thousand. I was then asked to come up with a solution that would look for an unexpected termination of the ftp connection. After lots of searching and getting one of our local unix gurus involved (I have worked directly on a unix platform), we implemented the following. It is not the best but it does seem to be working. We added a step to the ftp script. This step is a status command that is executed directly after the get or put command. This returns information about the ftp connection itself. It also returns a message if it is no longer connected. This output was passed back to the SAP program and parsed. If I had a message indicating that the remote host was still connected, I assumed that the get or put executed completely. If on the other hand I received the message indicating that the remote system was no longer connected I generated an error message from the program so that the user could check the data. Shari Dishop SAP ABAP - Project Systems Team Logicon - A Northrop Grumman Company Baltimore, MD RE: I think I've seen an answer to this, but I never needed it before. If anyone can help, I would greatly appreciate it. We are trying to ftp files from one server to another. (Archive logs for Oracle). We want to be able to capture the status when the ftp fails, so that we can notify the DBAs to check the process out. This is all being done within a shell script that compress the log file first, then calls another script to do the actual ftp. But when the child script executes, it returns a successful status to the parent script. I don't know any way to tell the script that is doing the ftp to send the message, because any non-ftp command within that script fails. (Of course, that could just be because I don't know how to do what I want to do). If anybody has invented this wheel before, or has any tips on where to look for more info on how to do what I need to do, please let me know. TIA, Terry -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Terry Ball INET: [EMAIL PROTECTED] -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Shari Dishop INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: Slightly OT: Capturing a failed status of an ftp process
-- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Shari Dishop INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
