Re: Select problem
>Hi, > >I having trouble working out how to get a result set similar to the >following where I select from a table with Date & Sales column. > >My specific question is can I have a column that accumulates values, >if so could I have some guidance on how to express this in a select >statement please. > > >+--+---+---+ >| Month| Sales | Cum Sales | >+--+---+---+ >| Jan | 1000 | 1000 | >| Feb | 1500 | 2500 | >| Mar | 1200 | 3700 | >| April| 1400 | 5100 | >+--+---+---+ > >Many thanks in advance. > >Richard Sir, at times like this it's handy to have a copy of 'SQL for Smarties'. The following is taken from one of the examples, with only the table and column names changed. SELECT s1.mnd, s1.sales, Sum(s2.sales) AS Cum_sales FROM sales AS s1, sales AS s2 WHERE s2.mnd <= s1.mnd GROUP BY s1.mnd; Note that I used mnd instead of Month. Month is a function name, so you probably don't want to use it for a column name. I used a date instead of a month name to make the WHERE clause work, i.e. the mnd column contained 2001-1-1, 2001-2-1, 2001-3-1, 2001-4-1, instead of Jan, Feb, etc. I ran the statement above on the MS Titanic (aka my Wintel box) and it worked fine. Bob Hall Know thyself? Absurd direction! Bubbles bear no introspection. -Khushhal Khan Khatak - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: GROUP BY problem.
Sir, look up Rand and ORDER BY in the documentation. I believe there's an example of using Rand and ORDER BY to do this. Bob Hall >Thanks for the answer. but actually I'm not saying that mysql is doing >wrong, I just want to know HOW can I group by codigo and then get 10 random >rows of the grouped ones. > >Hope I explain me. > >Thanks again. > > > > Angel Behar wrote: > > > > > > Hi !!! > > > > > > I'm running 3.23.28-gamma under windows NT, but I have the following > > > problem. > > > I need to query some data and gruop by some field (codigo in this case) >so I > > > run the following query : > > > > > > SELECT codigo from ropa where cve_depto='3' AND cve_clase='06' AND >activo = > > > 'A' AND p_credito <> 0 GROUP BY codigo; > > > > > > ++ > > > | codigo | > > > ++ > > > | 319066 | > > > ++ > > > 1 row in set (0.43 sec) > > > > > > the results are as I expected BUT I need to GROUP BY RAND() too and >LIMIT to > > > 10 rows : > > > > > > SELECT codigo from ropa where cve_depto='3' AND cve_clase='06' AND >activo = > > > 'A' AND p_credito <> 0 GROUP BY codigo, RAND() LIMIT 10; > > > > > > ++ > > > | codigo | > > > ++ > > > | 319066 | > > > | 319066 | > > > | 319066 | > > > ++ > > > 3 rows in set (0.30 sec) > > > > > > Actually I try switching codigo, RAND() or viceversa but doesn't work > > > either. > > > > > > As you can see once I use the RAND() option doesn't group codigo, I need > > > this because most of the articles are more than 10 but I really need to > > > solve this problem. > > > > > > Hope anybody can help me. > > > > > > Thanks in advance. > > > > > > Angel > > > > > > > > Each of those 3 lines have a different rand(), so it is doing it right. > > > > - > > Before posting, please check: > >http://www.mysql.com/manual.php (the manual) > >http://lists.mysql.com/ (the list archive) > > > > To request this thread, e-mail <[EMAIL PROTECTED]> > > To unsubscribe, e-mail ><[EMAIL PROTECTED]> > > Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php > > > > > > >- >Before posting, please check: >http://www.mysql.com/manual.php (the manual) >http://lists.mysql.com/ (the list archive) > >To request this thread, e-mail <[EMAIL PROTECTED]> >To unsubscribe, e-mail ><[EMAIL PROTECTED]> >Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php Know thyself? Absurd direction! Bubbles bear no introspection. -Khushhal Khan Khatak - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: delete
>When you delete somthing... is there any way to recover the data?? > >mvh: >Pål Wester, programmerer >never.no as, stortingsgt 30, 0161 Oslo >direkte: 22 01 66 34, 906 900 62 >tlf: 22 01 66 34, fax: 22 01 66 21 >http://never.no - icq:103476059 >~ innhold for internett ~ Yes sir. Retype it. mvh: Bob Hall, programmerer som har også av og til fjerna poster tilfeldigvis P.S. - Got backup? Know thyself? Absurd direction! Bubbles bear no introspection. -Khushhal Khan Khatak - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Problems building mysql++
I am trying to build mysql++, I am doing something wrong but I don't know what.
I have downloaded and untar'd ungzipped mysql++-1.7.8.tar.gz into mysql++-1.7.8, run
configure and then make, make install. I set my LD_LIBRARY_PATH to include the new
library and then I try to run the resetdb program in the examples directory and it
dies w/ Segmentation fault (core dumped).
It seemed to "make" correctly.
The version of mysql I am running is 3.23.33, freshly built and installed. This is a
Redhat 7.0 i386, I have not had any problems building other applications so I don't
think my compiler installation is to blame.
Here's what I tried. I found the lt-resetdb program and ran gdb lt-resetdb core and
got:
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i386-redhat-linux"...
Core was generated by `./lt-resetdb'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from
/home/quinn/decomp/mysql++-1.7.8/sqlplusint/.libs/libsqlplus.so.1...done.
Loaded symbols for /home/quinn/decomp/mysql++-1.7.8/sqlplusint/.libs/libsqlplus.so.1
Reading symbols from /usr/lib/libz.so.1...done.
Loaded symbols for /usr/lib/libz.so.1
Reading symbols from /usr/local/mysql/lib/mysql/libmysqlclient.so.10...done.
Loaded symbols for /usr/local/mysql/lib/mysql/libmysqlclient.so.10
Reading symbols from /usr/lib/libstdc++-libc6.2-2.so.3...done.
Loaded symbols for /usr/lib/libstdc++-libc6.2-2.so.3
Reading symbols from /lib/libm.so.6...done.
Loaded symbols for /lib/libm.so.6
Reading symbols from /lib/libc.so.6...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/libcrypt.so.1...done.
Loaded symbols for /lib/libcrypt.so.1
Reading symbols from /lib/libnsl.so.1...done.
Loaded symbols for /lib/libnsl.so.1
Reading symbols from /lib/ld-linux.so.2...done.
Loaded symbols for /lib/ld-linux.so.2
Reading symbols from /lib/libnss_files.so.2...done.
Loaded symbols for /lib/libnss_files.so.2
#0 chunk_free (ar_ptr=0x464c457f, p=0x40057198) at malloc.c:3071
3071malloc.c: No such file or directory.
I stepped through untill I got a SIGSEGV :
90 if (mysql_real_connect(&mysql,host,user,passwd,db, 3306,NULL,0)) {
(gdb)
Program received signal SIGSEGV, Segmentation fault.
chunk_free (ar_ptr=0x464c457f, p=0x40057198) at malloc.c:3071
3071malloc.c: No such file or directory.
Current language: auto; currently c
I don't know what to make of this output, does anyone on this list recognize what's
going on?
I don't know what to make of this output.
Quinn Wilson - [EMAIL PROTECTED] - Lunkee cc Lunky do{;}
- "For a list of the ways which technology has failed to improve our quality of life,
press 3."
Keyword search string
Greetings, I have a table that has a column where search keywords are entered. column searchwords word1 word2 word3 ..etc Now when this column is queried for a search, I'm wonder how is the best way to evaluate matching the keywords. In the SELECT query, would I get better results if I use: WHERE searchwords IN (keyword_string) or WHERE serachwords LIKE "%keyword_string%" The "keyword_string" are the keywords entered into a search form, the same as the keywords where entered into the searchwords column: keyword1 keyword2..etc TIA, Mike(mickalo)Blezien Thunder Rain Internet Publishing Providing Internet Solutions that work! http://www.thunder-rain.com Tel: 1(225) 686-2002 = - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
RE: Index / Rank in table
Dear Adam, I have faced the same problem a while ago and I didn't receive any kind of answer regarding doing this with MySQL in any discussion list at all. I had to create a function using PHP to do the hard job and the ranking position was created on the fly (using your example, I wouln't need table album_ranks). Yes... I agree with you. It's extremely ineffcient but at least it works (my DB has got more than 20.000 entries). The idea is something like this: send query to MySQL to get * from table album_votes ordered by votes (descending order); Create a var to hold the ranking position starting at 1 ($ranking_position=1); loop to circle thru the resulting array until you find the album_id that you want, incrementing $ranking_position by 1 before the end of the loop. When you find the correct album_id just break the loop and $ranking_position will be equal to the ranking position of the album that you want. I believe this is a little bit different from what you are doing, right? Well... It seems to be the only way to do it. Sad but true. :/// PLEASE ANY OF YOU CORRECT IF I'M WRONG! This will help me a lot also. :))) BR, Fábio Ottolini -Original Message- From: Adam W [mailto:[EMAIL PROTECTED]] Sent: Saturday, March 03, 2001 2:18 PM To: [EMAIL PROTECTED] Subject: Index / Rank in table Hi I'm designing a site where people can vote for their favourite albums using PHP3 to query the database. It's the first database I've 'designed', and I'm sure that there are improvements I could make to the way I have organised the data. For example, I'm looking for a way to make the 'album_ranks' table superfluous... e.g. when I query the database and return the 'album_id', 'artist', 'title' and 'year' fields from the 'album_details' table, I would like to be able to automatically return a 'rank' based on the 'album_id' position in the 'album_votes' table. Is it possible to do this? Currently, everytime an album is voted for, and the 'votes' column is updated in 'album_votes', I am repopulating the whole of the 'album_ranks' table on the basis of the updated vote... considering that this table contains in excess of 20,000 elements, this seems to me to be extremely inefficient. I have read what I can on 'indexes' (I'm sure that the solution lies there somewhere), but I'm still in a fog of ignorance on the subject. Could anyone point me in the right direction Yours gratefully Adam [ example structure below... ] SELECT * FROM album_details --- album_id | artist| title | year --- 5 | the beatles | revolver| 1966 17 | nirvana| nevermind | 1991 etc etc... SELECT * FROM album_votes --- album_id| votes --- 5| 16382 17 | 4732 etc etc... SELECT * FROM album_ranks --- album_id| rank --- 5| 1 17 | 2 - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Win 2000 Not starting-SOLVED
At 13:29 03/03/2001 +, Lucy wrote: Hi, >Hi >I had pored for ages over the Manual prior to posting my problem. I've >solved it - all the methods given in the Manual dont apply to 2000. Manual The above it isn't correct, I use Win2kPro and Win2k Server on my work machine and all applies to NT you can apply to Win2k OS. When you run mysqld-nt --standalone the server runs and the DOS screen remains open. You find on \mysql directory a file called Readme with instructions about this and mentioning the use of WinMySQLAdmin that can help you to run the server as service or as standalone (when the service is removed, there is this option). Regards, Miguel >states the various start >methods etc apply to both NT and 2000. They don't, at least not for >Professional. Forget the --standalone, the skip- etc etc. The only method, >after exhaustive tries, that works is: >1. Go to the dir where mysql is stored (I'd unzipped to d:) (dont forget >to first edit my.cnf for d:) >2. At > d:\mysql>bin\mysql-nt --install >3. d:\mysql>NET START mysql >etc.then start the monitor. >You must install it as a service, no other options (as for NT) seem to work >with Pro 2000. Also, it's best to restart pc more frequently too. >Cheers, Lucy > > > > >- >Before posting, please check: >http://www.mysql.com/manual.php (the manual) >http://lists.mysql.com/ (the list archive) > >To request this thread, e-mail <[EMAIL PROTECTED]> >To unsubscribe, e-mail ><[EMAIL PROTECTED]> >Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php __ ___ __ / |/ /_ __/ __/ __ \/ / http://www.mysql.com/ / /|_/ / // /\ \/ /_/ / /__ Miguel Solórzano <[EMAIL PROTECTED]> /_/ /_/\_, /___/\___\_\___/ São Paulo, Brazil <___/ Development Team - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Index / Rank in table
Hi I'm designing a site where people can vote for their favourite albums using PHP3 to query the database. It's the first database I've 'designed', and I'm sure that there are improvements I could make to the way I have organised the data. For example, I'm looking for a way to make the 'album_ranks' table superfluous... e.g. when I query the database and return the 'album_id', 'artist', 'title' and 'year' fields from the 'album_details' table, I would like to be able to automatically return a 'rank' based on the 'album_id' position in the 'album_votes' table. Is it possible to do this? Currently, everytime an album is voted for, and the 'votes' column is updated in 'album_votes', I am repopulating the whole of the 'album_ranks' table on the basis of the updated vote... considering that this table contains in excess of 20,000 elements, this seems to me to be extremely inefficient. I have read what I can on 'indexes' (I'm sure that the solution lies there somewhere), but I'm still in a fog of ignorance on the subject. Could anyone point me in the right direction Yours gratefully Adam [ example structure below... ] SELECT * FROM album_details --- album_id | artist| title | year --- 5 | the beatles | revolver| 1966 17 | nirvana| nevermind | 1991 etc etc... SELECT * FROM album_votes --- album_id| votes --- 5| 16382 17 | 4732 etc etc... SELECT * FROM album_ranks --- album_id| rank --- 5| 1 17 | 2 - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Can't locate DBI.pm in - CLOSED
Thank you all. I installed and seems working fine.
- Original Message -
From: "Paulus" <[EMAIL PROTECTED]>
To: "N Sikkandar Dulkarnai" <[EMAIL PROTECTED]>
Sent: Saturday, March 03, 2001 8:04 PM
Subject: Re: Can't locate DBI.pm in
> You haven't propably installed DBI.
> Find it at CPAN and install.
>
> N Sikkandar Dulkarnai wrote:
> >
> > I just trying to run the below perl script and got the following error.
Any suggesstion pls.
> > # more training1.pl
> > #!/usr/bin/perl
> > use DBI;
> > $mysocket="/var/mysql.sock";
> > $dsn="dbi:mysql:training;mysql_socket=$mysocket";
> > $user="demo";
> > $password="demo";
> > $dbh=DBI->connect($dsn,$user,$password)||die "cannot connect";
> > $sth=$dbh->prepare("SELECT * FROM telephone");
> > $sth->execute();
> > while(@row=$sth->fetchrow_array) {
> > print "@row\n";
> > }
> > $dbh->disconnect();
> >
> > t# ls -al training1.pl
> > -rwxr-xr-x 1 mysqlmysql357 Mar 3 18:26 training1.pl
> > # perl training1.pl
> > Can't locate DBI.pm in @INC (@INC contains:
/usr/local/lib/perl5/5.00503/sun4-so
> > laris /usr/local/lib/perl5/5.00503
/usr/local/lib/perl5/site_perl/5.005/sun4-sol
> > aris /usr/local/lib/perl5/site_perl/5.005 .) at training1.pl line 3.
> > BEGIN failed--compilation aborted at training1.pl line 3.
-
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http://www.mysql.com/manual.php (the manual)
http://lists.mysql.com/ (the list archive)
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MySQL for my application?
Hello all, I am brand new to MySQL. I have very limited experience with SQL type databases. MySQL appears to be a very elaborate product capable of many things. I've glanced at the documentation before writing this. I have 2 very general question to all you 'experienced' MySQL users. Question #1)... My application is in definite need of an SQL database manager. That much I know. But what I'm looking for is a db manager that can handle backward compatibility (ie: database version independence) of my application's data. Putting it in laymen's terms... I have an application that creates and uses a database of data that it uses now (say with version 1.0 of my software). Next year I come out with version 2.0 of my software but I want my software to be capable of running with previous versions of data (stored in the database) as well as new versions. In other words, I want to develop my software to be backward compatible with previous versions of data. I know the application is my responsibility, BUT will MySQL be capable of managing concurrent versions of data inbetween software versions? Questions #2)... I've used INFORMIX E/SQL in the past but only a little. So I am vaguely familiar with the 'style' of commands one must embed into the code to retrieve data from the database manager. Is there a 'standard' to SQL query command syntax? If I commit to MySQL today and decide to use ORACLE, INFORMIX, GNUSQL, etc. down the road (for whatever reason) will I have to rewrite my db interface handlers? - - - Sorry about the simplicity of these questions but you can tell I am exploring what are my best options for introducing a db manager to my application without making costly mistakes from the start. Thank you Attila - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: A newbie question
Hi By saying "mysql -u root mysql" you are telling mysql that you are going to use the database mysql which you have to use to add new users. Another way of doing it is type "mysql -u root" to log in and type "use mysql" in mysql command line. "test" is a database created by mysql by default when you install it so that you can test creating tables and running quieries on it. Seung-woo Nam anil kumar wrote: > hello All, > I am new to mysql database. I downloaded mysql and running on my > system. > For adminiatrative purpose the command i run as written in manual is > "mysql -u root mysql" > I am unable to understand why i have to write mysql after "-u root" why > not any other database name "test". > I tried to run the command like this > "mysql -u root test" >and when i tried to add a user i ghot Error >Table db.user does not exist. > I am unable to understand the meaning of above Error. > Please help me to understand the problem. > Thanks in advance > > anil > - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Can't locate DBI.pm in
I just trying to run the below perl script and got the following error. Any
suggesstion pls.
# more training1.pl
#!/usr/bin/perl
use DBI;
$mysocket="/var/mysql.sock";
$dsn="dbi:mysql:training;mysql_socket=$mysocket";
$user="demo";
$password="demo";
$dbh=DBI->connect($dsn,$user,$password)||die "cannot connect";
$sth=$dbh->prepare("SELECT * FROM telephone");
$sth->execute();
while(@row=$sth->fetchrow_array) {
print "@row\n";
}
$dbh->disconnect();
t# ls -al training1.pl
-rwxr-xr-x 1 mysqlmysql357 Mar 3 18:26 training1.pl
# perl training1.pl
Can't locate DBI.pm in @INC (@INC contains: /usr/local/lib/perl5/5.00503/sun4-so
laris /usr/local/lib/perl5/5.00503 /usr/local/lib/perl5/site_perl/5.005/sun4-sol
aris /usr/local/lib/perl5/site_perl/5.005 .) at training1.pl line 3.
BEGIN failed--compilation aborted at training1.pl line 3.
MyODBC
I have problem at compilation run MyODBC. ./configure --with-unixODBC=/usr/local/odbc \ --with-mysql-libs=/usr/lib/mysql \ --with-mysql-includes=/usr/include \ --prefix=/usr/local/odbc/lib make cd . && autoheader /bin/sh ./libtool --mode=compile gcc -DHAVE_CONFIG_H -I. -I. -I. -I/usr/include -I/usr/local/odbc/include -g -O2 -c execute.c gcc -DHAVE_CONFIG_H -I. -I. -I. -I/usr/include -I/usr/local/odbc/include -g -O2 -Wp,-MD,.deps/execute.pp -c -fPIC -DPIC execute.c -o execute.lo execute.c: In function nsert_param': execute.c:347: warning: passing arg 1 of Mysql_odbc_escape_string' from incompatible pointer type execute.c:347: warning: passing arg 2 of Mysql_odbc_escape_string' makes integer from pointer without a cast execute.c:347: warning: passing arg 3 of Mysql_odbc_escape_string' makes pointer from integer without a cast execute.c:347: warning: passing arg 4 of Mysql_odbc_escape_string' makes integer from pointer without a cast execute.c:347: warning: passing arg 5 of Mysql_odbc_escape_string' makes pointer from integer without a cast execute.c:347: too many arguments to function Mysql_odbc_escape_string' make: *** [execute.lo] Error 1 Pleas help Thanks -- S pozdravem Pavel Trefny = Pavel Trefny, Ticha 338, Blatna 38801 [EMAIL PROTECTED] tel. +420344421326 mob. tel. +420607643770, +420603921397 ICQ No : 20476221 server & network administrator Czech Republic = - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Can this query not be done in MySQL.
Hi! Sorry for the late reply, but I was away for a one week work/vacation trip to Rio. > "Richard" == Richard Reina <[EMAIL PROTECTED]> writes: Richard> Steve, Richard> I never received Mr. Van Engen's response. I appreciate your response. Richard> However, my question remains unanswered. If you put "sequence" in the Richard> GROUP BY it does not give you the value that correspond to the MAXIMUM Richard> sequence. As a matter of fact I can't find any combination of values Richard> that you can put in the GROUP BY clause that will give you the values Richard> that correspond with MAX. What good is an aggregate function like MAX Richard> if it does not give you the value ( and only that ) that corresponds to Richard> that aggregate function. In this case shouldn't (MAX(sequence)) give Richard> you only those values that correspond to the maximum sequence for each Richard> flight which would be: Richard> +---+ Richard> |flight_no |sequence|City | Richard> | 127 | 2 |Boston | Richard> | 391 | 1 |Miami | Richard> +---+ Richard> The documentation in the documentation under GROUP BY functions (section Richard> 7.3.12) seems to advocate this syntax -- specifically with their example Richard> of querying orders by MAX(payments) -- although they don't show the Richard> results of their examples. Richard> If this cannot be done in MySQL will someone with authority on the Richard> subject -- perhaps Sasha or Monty -- simply say that MySQL cannot Richard> perform this type of query. If it can be done will someone demonstrate Richard> how it can be done in MySQL. I believe I can do it in other DBMSs with Richard> the following subselect: Richard> SELECT soo.flight_no, soo.sequence, soo.city Richard> FROM stop_offs soo /* That's "stop_offs outer" */ Richard> WHERE soo.sequence = Richard> (select max(soi.sequence) Richard> FROM stop_offs soi /* "stop_offs inner" */ Richard> where soi.flight_no = soo.flight_no ) Richard> however, it is my understanding that MySQL does not support subselects. Richard> I have once again included a copy of the table below. Richard> Once again, thank you for your attention in this matter. Richard> Here is the table: Richard> +--+ Richard> | STOP_0FFS | Richard> +--+ Richard> |FLIGHT_NO |CITY | SEQUENCE| Richard> |127 |Chicago |1| Richard> |127 |Boston |2| Richard> |391 |Miami|1| Richard> +--+ Richard> SELECT flight_no, MAX(sequence), city FROM stop_offs GROUP BY flight_no; Richard> gives the result: Richard> +---+ Richard> |flight_no |sequence|City | Richard> | 127 | 2 |Chicago| Richard> | 391 | 1 |Miami | Richard> +---+ Richard> However Chicago is the city of the first stop off (sequence 1) not the Richard> value that corresponds with a sequence of 2 which would be 'Boston'. Richard> The desired result is the following: Richard> +---+ Richard> |flight_no |sequence|City | Richard> | 127 | 2 |Boston | Richard> | 391 | 1 |Miami | Richard> +---+ Without sub selects one can't do this easily, but it's still possible to do by using the trick that is described in the MySQL manual under the GROUP BY section: Until MySQL has sub selects, you can use the following query: select flight_no, MAX(sequence), substring(MAX(concat(rpad(sequence,2,' '),city)),3) from stops GROUP BY flight_no; It's not that elegant, but its works (and is even in some cases faster than sub selects)! Regards, Monty - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
configure can't find LinuxThreads
>Description: When running ./configure it can't find LinuxThreads. Environment: Linux 2.0.35 downloaded and expanded LinuxThreads-2.1.3.tar.gz. It seems the tarball do not include pthread.h which "configure" looks for. >How-To-Repeat: LinuxThreads-2.1.3.tar.gz does not include "pthread.h" >Fix: include minimal include files necessary to compile mySQL?? >Submitter-Id: Ethy Brito >Originator: >Organization: Phonet S/C Ltda. >MySQL support: none >Synopsis: trouble configuring mySQL on ancient Linux >Severity: critical >Priority: medium >Category: mysql >Class: doc-bug >Release: mysql-3.23.32 (Source distribution) >Environment: System: Linux jupiter 2.0.35 #1 Thu Dec 3 10:21:40 EDT 1998 i586 unknown Architecture: i586 Some paths: /usr/bin/perl /usr/bin/make /usr/bin/gcc /usr/bin/cc GCC: Reading specs from /usr/lib/gcc-lib/i586-pc-linux-gnulibc1/egcs-2.90.29/specs gcc version egcs-2.90.29 980515 (egcs-1.0.3 release) Compilation info: CC='gcc' CFLAGS='' CXX='gcc' CXXFLAGS='' LDFLAGS='' LIBC: lrwxrwxrwx 1 root root 13 Jul 30 1998 /lib/libc.so.4 -> libc.so.4.7.6 -rwxr-xr-x 1 root root 634880 Jun 4 1996 /lib/libc.so.4.7.6 lrwxrwxrwx 1 root root 14 Jul 30 1998 /lib/libc.so.5 -> libc.so.5.4.44 -rwxr-xr-x 1 root root 580816 Mar 23 1998 /lib/libc.so.5.4.44 -rw-r--r-- 1 root root 1120212 Feb 2 1998 /usr/lib/libc.a lrwxrwxrwx 1 root root 19 Jul 30 1998 /usr/lib/libc.so -> /lib/libc.so.5.4.44 Configure command: ./configure --with-unix-socket-path=/var/tmp/mysql.sock --with-low-memory --with-mit-threads=yes --without-perl --enable-thread-safe-client --without-berkeley-db Perl: This is perl, version 5.004_04 built for i586-linux - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Perl/mysql.
Hello there, I just installed "mysql Ver 11.12 Distrib 3.23.33, for sun-solaris2.6 (sparc)". How do I insert rows into mysql database.tablevia PERL ?. It would be appreciated if some one can send some basic structure of connecting into sql using perl and some useful links. Thanks in advance. Regards, Sikkandar.
Re: Win 2000 Not starting-SOLVED
Hi I had pored for ages over the Manual prior to posting my problem. I've solved it - all the methods given in the Manual dont apply to 2000. Manual states the various start methods etc apply to both NT and 2000. They don't, at least not for Professional. Forget the --standalone, the skip- etc etc. The only method, after exhaustive tries, that works is: 1. Go to the dir where mysql is stored (I'd unzipped to d:) (dont forget to first edit my.cnf for d:) 2. At d:\mysql>bin\mysql-nt --install 3. d:\mysql>NET START mysql etc.then start the monitor. You must install it as a service, no other options (as for NT) seem to work with Pro 2000. Also, it's best to restart pc more frequently too. Cheers, Lucy - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Re: Scaling mysql
hey, replication was ruled out coz the writes are very very frequent. and consistency of data is a very important issue. tx. vinod - Original Message -- "Jason Landry" <[EMAIL PROTECTED]> wrote: To:<[EMAIL PROTECTED]>, "vinod panicker" <[EMAIL PROTECTED]> From:"Jason Landry" <[EMAIL PROTECTED]> Date:Sat, 3 Mar 2001 03:38:10 -0600 CC:<[EMAIL PROTECTED]> Subject: Re: Scaling mysql Have you considered replication? There's a pretty good chapter in the MySQL manual on how to objectively determine the benefit to a master/slave setup with n slaves (it depends on how often writes happen to the database). - Original Message - From: "vinod panicker" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Friday, March 02, 2001 1:24 PM Subject: Scaling mysql > hey, > i'm having a problem with scaling a mysql server. This is the situation... i have a database with 5 tables containing user data. Except one, all the other tables have only 2 fields. This data is queried often and needs to be accessed by multiple web servers. Each table would contain something like 500,000 to 1,000,000 records. I'm using PHP to access the mysql database. The system would be experiencing loads of 5000 concurrent users. > Tips on how to scale this database to handle such a load would be very helpful. The H/W is pretty good - 2 gigs of RAM and a dual CPU. > > Tx. > Vinod. > > _ > Chat with your friends as soon as they come online. Get Rediff Bol at > http://bol.rediff.com > > > > > > - > Before posting, please check: >http://www.mysql.com/manual.php (the manual) >http://lists.mysql.com/ (the list archive) > > To request this thread, e-mail <[EMAIL PROTECTED]> > To unsubscribe, e-mail <[EMAIL PROTECTED]> > Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php > _ Chat with your friends as soon as they come online. Get Rediff Bol at http://bol.rediff.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Query with multiple form fields
I'm assuming you're using PHP... this example is rather simplistic; you can create a whole routine for building a select statment. You could have a checkbox on the form that allows for AND/OR comparison (the name on the form would be 'operator' in this example): $query = "select * from $database where title like '%$title "; if(!empty($quotation)) $query .= " $operator quotation like '%$quotation%'"; - Original Message - From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, March 03, 2001 3:33 AM Subject: Query with multiple form fields > The following query > > SELECT * from $database WHERE title LIKE '%$title%' OR quotation LIKE '%$quotation%' > > does not work as desired, if one of the two query fields in the HTML form stays empty. How do I do this query properly, leaving the user the opportunity to narrow the search by filling in as many fields as he wishes, e. g. "list all books with THIS word in the title and/or THAT word in the quotation". > > - > Before posting, please check: >http://www.mysql.com/manual.php (the manual) >http://lists.mysql.com/ (the list archive) > > To request this thread, e-mail <[EMAIL PROTECTED]> > To unsubscribe, e-mail <[EMAIL PROTECTED]> > Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php > - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Scaling mysql
Have you considered replication? There's a pretty good chapter in the MySQL manual on how to objectively determine the benefit to a master/slave setup with n slaves (it depends on how often writes happen to the database). - Original Message - From: "vinod panicker" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Friday, March 02, 2001 1:24 PM Subject: Scaling mysql > hey, > i'm having a problem with scaling a mysql server. This is the situation... i have a database with 5 tables containing user data. Except one, all the other tables have only 2 fields. This data is queried often and needs to be accessed by multiple web servers. Each table would contain something like 500,000 to 1,000,000 records. I'm using PHP to access the mysql database. The system would be experiencing loads of 5000 concurrent users. > Tips on how to scale this database to handle such a load would be very helpful. The H/W is pretty good - 2 gigs of RAM and a dual CPU. > > Tx. > Vinod. > > _ > Chat with your friends as soon as they come online. Get Rediff Bol at > http://bol.rediff.com > > > > > > - > Before posting, please check: >http://www.mysql.com/manual.php (the manual) >http://lists.mysql.com/ (the list archive) > > To request this thread, e-mail <[EMAIL PROTECTED]> > To unsubscribe, e-mail <[EMAIL PROTECTED]> > Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php > - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Re: Re: max connections
thanks a million... i've got another problem that i've been struggling with for a long time now. It needs to be fixed fast.. running out of time... the problem is this - i'm using PHP to connect to mysql using mysql_connect(). The script runs fine till a certain number of users. This 'certain number' keeps changing. When the machine is rebooted, the server supports around 150 clients... but soon restarts and i get mysql connection failed in the script. I ran the servers with logging enabled, but the restart is not caused by any specific query as such. In the .cnf file, i've just increased the max_connections variable. The server runs smoothly for some time and then it just restarts without any warning... nothing in the .err file too! weird... any hope, suggestions? Tx. Vinod - Original Message -- "Jorge del Conde" <[EMAIL PROTECTED]> wrote: To:"vinod panicker" <[EMAIL PROTECTED]> From:"Jorge del Conde" <[EMAIL PROTECTED]> Date:Sat, 3 Mar 2001 03:51:30 -0600 CC:<[EMAIL PROTECTED]> Subject: Re: Re: max connections Hi, If you want to have 1000+ connections, you will need to modify and recompile LinuxThreads. Afterwards, you'll need to recompile MySQL while linking with the new libpthread.a library. Check the following section from the manual: http://www.mysql.com/doc/L/i/Linux.html Regards, Jorge MySQL Development Team __ ___ __ __ / |/ /_ __/ __/ __ \/ / Jorge del Conde <[EMAIL PROTECTED]> / /|_/ / // /\ \/ /_/ / /__ MySQL AB, http://www.mysql.com/ /_/ /_/\_, /___/\___\_\/ Mexico City, Mexico <___/ - Original Message - From: "vinod panicker" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Saturday, March 03, 2001 2:52 AM Subject: Re: Re: max connections > hey, > thanks for replying so soon. the max limit of files and inodes have been increased on the system. So that is not a problem. But what i really meant to ask was if mysql scales well over 1000 connections (assuming that i'm not having any external problems like the OS for instance). > > Tx. > Vinod > > - Original Message -- > "Jorge del Conde" <[EMAIL PROTECTED]> wrote: > To:<[EMAIL PROTECTED]>, > "vinod panicker" <[EMAIL PROTECTED]> > From:"Jorge del Conde" <[EMAIL PROTECTED]> > Date:Sat, 3 Mar 2001 01:17:41 -0600 > Subject: Re: max connections > > Hi, > > The maximum number of connections that mysql can accept is restricted by > both: the OS and ulimit. In other words, you can set max_connections as > high as you want without bypassing the limits specified in ulimit. > > If you do ulimit -n you should get the number of connections allowed (1024 > by default I think) .. > > Read section 21.3 in the manual for having several servers running on > different ports on the same machine. > > Regards, > Jorge > > MySQL Development Team > __ ___ __ __ >/ |/ /_ __/ __/ __ \/ / Jorge del Conde <[EMAIL PROTECTED]> > / /|_/ / // /\ \/ /_/ / /__ MySQL AB, http://www.mysql.com/ > /_/ /_/\_, /___/\___\_\/ Mexico City, Mexico > <___/ > > > - Original Message - > From: "vinod panicker" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Friday, March 02, 2001 1:09 PM > Subject: max connections > > > > hey, > > i'm developing a product that heavily utilizes mysql databases through > PHP. The max number of connections that any server can handle is needed as > i have to think of scaleability issues. The servers are pretty powerful - > it maxes out at 4G's 2x850 P-III. I need max performance out of this box. > It will be accessed by multiple web servers. > > I also wanted to know if I can have 2 mysql servers on the same > machine accessing and serving data from the *same* database... also, at what > number of connections does mysql go for a toss? > > > > Tx. > > Vinod > _ Chat with your friends as soon as they come online. Get Rediff Bol at http://bol.rediff.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Re: max connections
Hi, If you want to have 1000+ connections, you will need to modify and recompile LinuxThreads. Afterwards, you'll need to recompile MySQL while linking with the new libpthread.a library. Check the following section from the manual: http://www.mysql.com/doc/L/i/Linux.html Regards, Jorge MySQL Development Team __ ___ __ __ / |/ /_ __/ __/ __ \/ / Jorge del Conde <[EMAIL PROTECTED]> / /|_/ / // /\ \/ /_/ / /__ MySQL AB, http://www.mysql.com/ /_/ /_/\_, /___/\___\_\/ Mexico City, Mexico <___/ - Original Message - From: "vinod panicker" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Saturday, March 03, 2001 2:52 AM Subject: Re: Re: max connections > hey, > thanks for replying so soon. the max limit of files and inodes have been increased on the system. So that is not a problem. But what i really meant to ask was if mysql scales well over 1000 connections (assuming that i'm not having any external problems like the OS for instance). > > Tx. > Vinod > > - Original Message -- > "Jorge del Conde" <[EMAIL PROTECTED]> wrote: > To:<[EMAIL PROTECTED]>, > "vinod panicker" <[EMAIL PROTECTED]> > From:"Jorge del Conde" <[EMAIL PROTECTED]> > Date:Sat, 3 Mar 2001 01:17:41 -0600 > Subject: Re: max connections > > Hi, > > The maximum number of connections that mysql can accept is restricted by > both: the OS and ulimit. In other words, you can set max_connections as > high as you want without bypassing the limits specified in ulimit. > > If you do ulimit -n you should get the number of connections allowed (1024 > by default I think) .. > > Read section 21.3 in the manual for having several servers running on > different ports on the same machine. > > Regards, > Jorge > > MySQL Development Team > __ ___ __ __ >/ |/ /_ __/ __/ __ \/ / Jorge del Conde <[EMAIL PROTECTED]> > / /|_/ / // /\ \/ /_/ / /__ MySQL AB, http://www.mysql.com/ > /_/ /_/\_, /___/\___\_\/ Mexico City, Mexico > <___/ > > > - Original Message - > From: "vinod panicker" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Friday, March 02, 2001 1:09 PM > Subject: max connections > > > > hey, > > i'm developing a product that heavily utilizes mysql databases through > PHP. The max number of connections that any server can handle is needed as > i have to think of scaleability issues. The servers are pretty powerful - > it maxes out at 4G's 2x850 P-III. I need max performance out of this box. > It will be accessed by multiple web servers. > > I also wanted to know if I can have 2 mysql servers on the same > machine accessing and serving data from the *same* database... also, at what > number of connections does mysql go for a toss? > > > > Tx. > > Vinod > > > > _ > Chat with your friends as soon as they come online. Get Rediff Bol at > http://bol.rediff.com > > > > > > - > Before posting, please check: >http://www.mysql.com/manual.php (the manual) >http://lists.mysql.com/ (the list archive) > > To request this thread, e-mail <[EMAIL PROTECTED]> > To unsubscribe, e-mail <[EMAIL PROTECTED]> > Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Query with multiple form fields
aply logic in the app. i. e. build the where clause from the
filled in fields only:
$where = array() ;
foreach( $HTTP_GET_VARS as $v ) {
if( '' != $v ) {
$where[] = "'%$v%'" ;
}
}
$where = implode( ' OR ' , $where ) ;
$query = "select blah $where" ;
This is total crap but I've been up all night, so sorry. But
at least you get the idea.
At 10:33 3.3. 2001, [EMAIL PROTECTED] wrote the following:
--
>The following query
>
>SELECT * from $database WHERE title LIKE '%$title%' OR quotation LIKE '%$quotation%'
>
>does not work as desired, if one of the two query fields in the HTML form stays
>empty. How do I do this query properly, leaving the user the opportunity to narrow
>the search by filling in as many fields as he wishes, e. g. "list all books with THIS
>word in the title and/or THAT word in the quotation".
>
>-
>Before posting, please check:
> http://www.mysql.com/manual.php (the manual)
> http://lists.mysql.com/ (the list archive)
>
>To request this thread, e-mail <[EMAIL PROTECTED]>
>To unsubscribe, e-mail <[EMAIL PROTECTED]>
>Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
--end of quote--
Cynic:
A member of a group of ancient Greek philosophers who taught
that virtue constitutes happiness and that self control is
the essential part of virtue.
[EMAIL PROTECTED]
-
Before posting, please check:
http://www.mysql.com/manual.php (the manual)
http://lists.mysql.com/ (the list archive)
To request this thread, e-mail <[EMAIL PROTECTED]>
To unsubscribe, e-mail <[EMAIL PROTECTED]>
Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Query with multiple form fields
The following query SELECT * from $database WHERE title LIKE '%$title%' OR quotation LIKE '%$quotation%' does not work as desired, if one of the two query fields in the HTML form stays empty. How do I do this query properly, leaving the user the opportunity to narrow the search by filling in as many fields as he wishes, e. g. "list all books with THIS word in the title and/or THAT word in the quotation". - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Myodbc install options
Hi, We have been using MyODBC 2.50.36 and we are connected to MySQL server at Linux (Red Hat 7.0 2.2.16-22) under MS Win98. But we can't get a result from Win98-ODBC Linux's MySQL clients -q parameter. -q parameter supplies "don't cache result, print it row by row". How can we make a configuration in MyODBC under Win98 or how can we create a "C:\my.cnf" file? Thanks.
Scaling mysql
hey, i'm having a problem with scaling a mysql server. This is the situation... i have a database with 5 tables containing user data. Except one, all the other tables have only 2 fields. This data is queried often and needs to be accessed by multiple web servers. Each table would contain something like 500,000 to 1,000,000 records. I'm using PHP to access the mysql database. The system would be experiencing loads of 5000 concurrent users. Tips on how to scale this database to handle such a load would be very helpful. The H/W is pretty good - 2 gigs of RAM and a dual CPU. Tx. Vinod. _ Chat with your friends as soon as they come online. Get Rediff Bol at http://bol.rediff.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Re: max connections
hey, thanks for replying so soon. the max limit of files and inodes have been increased on the system. So that is not a problem. But what i really meant to ask was if mysql scales well over 1000 connections (assuming that i'm not having any external problems like the OS for instance). Tx. Vinod - Original Message -- "Jorge del Conde" <[EMAIL PROTECTED]> wrote: To:<[EMAIL PROTECTED]>, "vinod panicker" <[EMAIL PROTECTED]> From:"Jorge del Conde" <[EMAIL PROTECTED]> Date:Sat, 3 Mar 2001 01:17:41 -0600 Subject: Re: max connections Hi, The maximum number of connections that mysql can accept is restricted by both: the OS and ulimit. In other words, you can set max_connections as high as you want without bypassing the limits specified in ulimit. If you do ulimit -n you should get the number of connections allowed (1024 by default I think) .. Read section 21.3 in the manual for having several servers running on different ports on the same machine. Regards, Jorge MySQL Development Team __ ___ __ __ / |/ /_ __/ __/ __ \/ / Jorge del Conde <[EMAIL PROTECTED]> / /|_/ / // /\ \/ /_/ / /__ MySQL AB, http://www.mysql.com/ /_/ /_/\_, /___/\___\_\/ Mexico City, Mexico <___/ - Original Message - From: "vinod panicker" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, March 02, 2001 1:09 PM Subject: max connections > hey, > i'm developing a product that heavily utilizes mysql databases through PHP. The max number of connections that any server can handle is needed as i have to think of scaleability issues. The servers are pretty powerful - it maxes out at 4G's 2x850 P-III. I need max performance out of this box. It will be accessed by multiple web servers. > I also wanted to know if I can have 2 mysql servers on the same machine accessing and serving data from the *same* database... also, at what number of connections does mysql go for a toss? > > Tx. > Vinod _ Chat with your friends as soon as they come online. Get Rediff Bol at http://bol.rediff.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
