Re: slow response time

2004-07-07 Thread Harald Fuchs
In article [EMAIL PROTECTED], Jeremy Zawodny [EMAIL PROTECTED] writes: Using the query cache at all? Not sure... I'm using the values for caches and whatnot from the my-large.cnf in the distribution. The my-large.cnf I'm looking at has a 16M query cache, but doesn't explicitly turn it

Re: select and where clause - help

2004-07-07 Thread Markus Grossrieder
Hi, | BT-1034.02 mysql SELECT * FROM balloon_txt WHERE access_no = 'BT-1034.2'; I think you have a type .. instead of SELECT * FROM balloon_txt WHERE access_no = 'BT-1034.2' try SELECT * FROM balloon_txt WHERE access_no = 'BT-1034.02' HTH, Markus - Original Message - From: leegold

User variables optimization of IF()

2004-07-07 Thread Tom Cunningham
Hi everybody. I generally try to parametrize out my queries as much as possible with user-variables. So, say you have a general query for all users: --- SELECT ... FROM users --- It's nice to do this: SET @USER_ID:= NULL; SELECT ... FROM users WHERE IF(@USER_ID IS NOT NULL,[EMAIL

Solaris Performance Issue

2004-07-07 Thread Linda
Hi, My old mysql is 3.23.56 on RedHat9(Intel). After moving mySQL to Solaris 9 (Sun F280R/2GB Memory) and upgrading mySQL to 4.0.20, I got a lot of complaints about the performance for select and update. Have anyone can tell me if there is anything I should tune for Solaris or MySQL to improve

C API mysql_next_result stalls

2004-07-07 Thread Han-Ju Kim
I know that I should use mysqlbug tool but it doesn't work. Description: MySQL C API mysql_next_result stalls in my program. I'm using pthread and MYSQL handle is using in just one thread. I hacked into the source and found this call is just same as mysql_real_query except it doesn't send query

INSERT SELECT

2004-07-07 Thread shaun thornburgh
Hi, Using the following query I am attampting to insert the Work_Type_IDs from Work_Types WHERE Project_ID = 'x'. However I also wan to insert the Project_ID into the table, how would this syntax work - apperently the column count is incorrect... INSERT INTO Letter_Templates (Work_Type_ID,

RE: INSERT SELECT

2004-07-07 Thread Andy Eastham
Shaun, You need two columns for the insert, but you're only selecting one. Try this: INSERT INTO Letter_Templates (Work_Type_ID, Project_ID) SELECT Work_Types.Work_Type_ID, Work_Types.Project_ID FROM Work_Types WHERE Work_Types.Project_ID = 'x'; Andy -Original Message- From: shaun

Re: Connect to other database format

2004-07-07 Thread gerald_clark
Elmar and Madeleine von Muralt wrote: Hi, I'm completely new to MySQL and some of its concepts, therefore, these questions may be very basic. To connect to another database format I need the ODBC driver for that other format - right? I've built a repair job entry database on my Palm with

How to query an oracle table from a mysql database

2004-07-07 Thread Alonso, Claudio Fabian
Good morning, I need a MySQL database to be able to query a table in an Oracle database of a remote host. Is this possible? Could anybody tell me how to do it or where to find this information? Thanks in advance, --Claudio ..

Space is filling up

2004-07-07 Thread Asif Iqbal
Hi All My mysql data dir is filled up to 95% and only 345M left. Here is the dir looks like 1.9Gibdata1 3.1Gibdata2 3.0Kib_arch_log_02 3.0Kib_arch_log_04 25K ib_arch_log_00 65M rt3 67K webrt.err 70K mysql 101Mib_logfile0 101M

MySQL IPv6 enabled ready !!!

2004-07-07 Thread Rafael Martinez Torres
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 ( I apologize for duplicate message. Just for make sure the anti-spam process) To MySQL staff and developer's team: At http://www.ngn.euro6ix.org/IPv6/mysql you will find a patch to make the last stable version on MySQL, (4.0.8) ready to run

RE: DBF to MySQL

2004-07-07 Thread Chinchilla Zúñiga, Guillermo
John: I´m new to MySQL but I hope this could help. Please read below. Regards from Costa Rica -Mensaje original- De: John Mistler [mailto:[EMAIL PROTECTED] Enviado el: Martes, 06 de Julio de 2004 09:55 p.m. Para: [EMAIL PROTECTED] Asunto: Re: DBF to MySQL For some reason, the imported

maxDB

2004-07-07 Thread u235sentinel
I'm working with maxDB 7.5 and trying to figure out whether mySQL 4.0.x database files can be read by it. I'm getting the impression we will need to run a sqlimport from a mysql dump to get the data. Is this the case? Has anyone been successful in migrating to maxDB from mySQL 4.0.x?

RE: How to query an oracle table from a mysql database

2004-07-07 Thread Victor Pendleton
You may want to look into using a programming language such as C or Java that communicates between both databases. -Original Message- From: Alonso, Claudio Fabian To: '[EMAIL PROTECTED]' Sent: 7/7/04 8:14 AM Subject: How to query an oracle table from a mysql database Importance: High

Problem with Mysql 4.0.18 + Apache

2004-07-07 Thread wiricha2
Hello: This is my first time posting so bear with me. I have a Debian (woody) server running a good sized database (7.2GB), Mysql 4.0.18. I am running Apache 1.3.29 + perl and using mysql as the backend. Here's the problem. I had the site up for weeks, with everything running perfectly.

Very strange database behavior

2004-07-07 Thread Paul McNeil
Good morning to all. I have a very strange problem in my database and am trying to track down whether it is a JAVA problem or a mySQL problem. I have a table that is supposed to accept only unique data, however, at this time, the PK for that information is set to the auto incrementing ID field.

moving records between tables?

2004-07-07 Thread darren
Hi all, I have 2 tables...one for keeping active items while the other is for older records. A housekeep program will come in every night to move some records (matching several criteria from the active table to the history one. I am currently doing SELECT, INSERT and then DELETE. i.e. a select

Re: How to query an oracle table from a mysql database

2004-07-07 Thread Steve Davies
Try PHP, it has built in functions to access both DBs HTH Steve Victor Pendleton wrote: You may want to look into using a programming language such as C or Java that communicates between both databases. -Original Message- From: Alonso, Claudio Fabian To: '[EMAIL PROTECTED]' Sent: 7/7/04

RE: Very strange database behavior

2004-07-07 Thread Victor Pendleton
Are you saying that you are not receiving an Unique key violation when you enter in duplicate data or you are relying on a value being present? If you are using the later, do you have query caching turned on? -Original Message- From: Paul McNeil To: MySQL General Sent: 7/7/04 10:43 AM

Re: DBF to MySQL

2004-07-07 Thread Paul DuBois
At 20:55 -0700 7/6/04, John Mistler wrote: For some reason, the imported information showed up as garbled nonsense. The file I was importing was an .xls file. Do you know if there is another TERMINATED BY I should be using? If not, I wonder how I can find out? LOAD DATA will not, I think, read

Re: slow response time

2004-07-07 Thread Egor Egorov
Jeremy Zawodny [EMAIL PROTECTED] wrote: So I haven't really done much to optimize things, as this seems like a fairly light load. I'm running 4.0.20 on FreeBSD 4.8 (port build w/Linux Threads). Reliability and performance is not what you should expect to find in FreeBSD 4.x. MySQL

Re: slow response time

2004-07-07 Thread Egor Egorov
Charles Sprickman [EMAIL PROTECTED] wrote: The hardware is a dual Athlon MP-1600 smp box with 1GB of RAM. BTW, user-level threads don't scale on more than one CPU. I.e. different threads cannot run on different CPUs on FreeBSD 4. -- For technical support contracts, goto

RE: Very strange database behavior

2004-07-07 Thread Paul McNeil
Thanks for the response. There is currently no primary key on the field so I am relying on the data being there, or not being there, to decide whether it is safe to insert the new data. Through MySQLCC, have_query_cache = YES. Is this the variable I am looking for? What affect would this have?

Re: sock file

2004-07-07 Thread Egor Egorov
michael johnson [EMAIL PROTECTED] wrote: When trying to start mysql on a lx50 I get the following message: Error 2002 Cannot connect to local MySQL server through socket /var/lib/mysql/mysql.sock (111). What can I do to resolve this problem pls? Start MySQL or change the correct path to

Re: Mysql 4.0.20, InnoDB my.cnf problems

2004-07-07 Thread Egor Egorov
C.F. Scheidecker Antunes [EMAIL PROTECTED] wrote: Can anyone point me out what is going on wrong in this scenario? The .err file in the datadir can give you a clue. Take a look at the end of it. -- For technical support contracts, goto https://order.mysql.com/?ref=ensita This email is

Re: How to query an oracle table from a mysql database

2004-07-07 Thread Martin Gainty
Steve et al: If you want to do it right select a programming language such as Java or C++ There are enough good OOA/OOD folks out there that you will be able to pick a good Java or C++ Engineer for the same price as PHP Otherwise you will be adding on Disk Storage when your single threaded app

RE: How to query an oracle table from a mysql database

2004-07-07 Thread Alonso, Claudio Fabian
Hello Steve, hello Victor, Thanks for your answers. My PHP application needs to see this Oracle table, but as far as I could see PHP has problems with Oracle 9.2.0. I got a conection problem and found in the PHP's bug database that it isn't currently working. As I'm familiar with PHP/MySQL, I'm

Re: Increasing number of sockets

2004-07-07 Thread Egor Egorov
Robert Canary [EMAIL PROTECTED] wrote: I am getting an error on my radius server asking me to increase the number of sockets on mysql. Probably you mean connections. Enlarge the value of max_connections variable. You can write it in the /etc/my.cnf in [mysqld] section: [mysqld]

Drivers to use with VB6

2004-07-07 Thread Greg Zimmermack
I am using VB6 and ADO in conjunction with ODBC inorder to connect to a MySQL database. This is seems to be considerably slowing down my application. Is there anyother mode of connecting besides ODBC - does anybody have any experience with MyVBQL.dll or MYOLEDB - if so, please share your

RE-strange DB behavior

2004-07-07 Thread Paul McNeil
Thanks to all who posted help. I found my error, in my code. Sad sad pumpkin. God Bless Paul C. McNeil Developer in Java, MS-SQL, MySQL, and web technologies. GOD BLESS AMERICA! To God Be The Glory! -- MySQL General Mailing List For list archives:

Re: GROUP BY vs DISTINCT - questions

2004-07-07 Thread SGreen
Q1: GROUP BY is the command that requests the SQL engine to aggregate sets of rows based on values in common between those rows. Those columns participating in the query that are NOT part of the aggregation key (the key is composed of the columns specified in the GROUP BY clause) must have some

Re: mysql sql question

2004-07-07 Thread SGreen
Bruce, It also depends on where the data is coming FROM as to what your options are. Is the source data coming from another table (like, maybe from a bulk import?) or from some kind of user input? You CAN write it in one statement but I need to know your data source. Yours, Shawn Green

Mysql Newbie: Help requested...password hash should be a 16 digit hexadecimal number

2004-07-07 Thread Sanjay Arora
I am using Mysql on RH Linux 9. I am getting the following error. Command and result are given below alongwith \s output for diagnostic purposes. I have created a dns database and am trying to create a user mysql user dns with all privileges on it. mysql use mysql Reading table information for

Session wait_timeout and interactive_timeout variables

2004-07-07 Thread Aaron Jacobs
Do the following commands, when run from an already-established connection, actually have any bearing on anything? SET SESSION wait_timeout=10; SET SESSION interactive_timeout=10; I am working on an application using the C API that needs to lock tables while doing updates. This works fine

Script to purge

2004-07-07 Thread Luis Mediero
Hi, I would like write a script to purge every nigth the master log with a cron process. I need do it every nigth after load a lot of data into the master. I know if i do 'show master status' i can see the file_name of the last log file and then do -purge master logs to 'file_name'-. Is

Re: moving records between tables?

2004-07-07 Thread gerald_clark
darren wrote: Hi all, I have 2 tables...one for keeping active items while the other is for older records. A housekeep program will come in every night to move some records (matching several criteria from the active table to the history one. I am currently doing SELECT, INSERT and then DELETE.

Re: Connect to other database format

2004-07-07 Thread SGreen
Elmar, The reason you could not find any documentation about how MySQL connects to other databases is because MySQL does not connect to other databases (except in the special case of replication between MySQL servers). What you have is a program, Excel, contacting a database through an ODBC

RE: Mysql Newbie: Help requested...password hash should be a 16 digithexadecimal number

2004-07-07 Thread Chris W. Parker
Sanjay Arora mailto:[EMAIL PROTECTED] on Wednesday, July 07, 2004 10:04 AM said: I am using Mysql on RH Linux 9. I am getting the following error. [snip] Database changed mysql GRANT ALL PRIVILEGES ON dns.* TO [EMAIL PROTECTED] IDENTIFIED BY PASSWORD dns; ERROR 1133: Password hash

Re: Space is filling up

2004-07-07 Thread gerald_clark
What about getting a bigger drive? Asif Iqbal wrote: Hi All My mysql data dir is filled up to 95% and only 345M left. Here is the dir looks like 1.9Gibdata1 3.1Gibdata2 3.0Kib_arch_log_02 3.0Kib_arch_log_04 25K ib_arch_log_00 65M rt3 67K

Re: Script to purge

2004-07-07 Thread gerald_clark
We delete all binlogs over 7 days old. We figure that if a slave gets that far behind, it is easier and faster to restore last nights master backup and edit the master.info file on the slave to point to todays log file. Luis Mediero wrote: Hi, I would like write a script to purge every

Re: Script to purge

2004-07-07 Thread Jeremy Zawodny
On Wed, Jul 07, 2004 at 07:42:46PM +0200, Luis Mediero wrote: Hi, I would like write a script to purge every nigth the master log with a cron process. I need do it every nigth after load a lot of data into the master. I know if i do 'show master status' i can see the file_name of the

Re: Space is filling up

2004-07-07 Thread Asif Iqbal
gerald_clark wrote: What about getting a bigger drive? I guess that would be my only option eh? Asif Iqbal wrote: Hi All My mysql data dir is filled up to 95% and only 345M left. Here is the dir looks like 1.9Gibdata1 3.1Gibdata2 3.0Kib_arch_log_02 3.0K

Re: update query question

2004-07-07 Thread SGreen
Have you tried this other way of making an inner join? UPDATE products_categories AS pc INNER JOIN products AS p ON pc.prod_id = p.id SET pc.prod_sequential_id = p.id But that does not seem right our you could say: UPDATE products_categories AS pc SET pc.prod_sequential_id = pc.prod_id and

RE: How to query an oracle table from a mysql database

2004-07-07 Thread Justin Swanhart
No, that isn't possible using mySQL. Try linking PHP with older client libraries (9.0.1, 8.1.5, etc) instead of the newer 9.2 libraries and see if that fixes your problem with PHP. You can download them from otn.oracle.com swany --- Alonso, Claudio Fabian [EMAIL PROTECTED] wrote: Hello

Re: odd problem

2004-07-07 Thread SGreen
I got back from vacation today and I didn't see that anyone else has responded yet so I figure that later is better than never ;-) Your INSERT speed will be directly related to how fast all of your JOINS can be accomplished. Your JOIN speed is related to two things: the size of your tables

RE: How to query an oracle table from a mysql database

2004-07-07 Thread Paul DuBois
At 13:18 -0300 7/7/04, Alonso, Claudio Fabian wrote: Hello Steve, hello Victor, Thanks for your answers. My PHP application needs to see this Oracle table, but as far as I could see PHP has problems with Oracle 9.2.0. I got a conection problem and found in the PHP's bug database that it isn't

Re: Unexpected behaviour: SELECT with OR returns empty set

2004-07-07 Thread SGreen
This sounds like a shortcut optimization in the JOIN processor. Whenever you write FROM tableA, tableB ... WHERE tableA.keyfield = tableB.foreignkeyfield it has the same effect as writing FROM tableA INNER JOIN tableB ON tableA.keyfield = tableB.foreignkeyfield. The engine handles the comma

RE: Space is filling up

2004-07-07 Thread Jack Coxen
If you database contains time-based data you could age out old records. I only need to keep data for 6 months so I run a nightly script to delete any records more than 6 months old. And before anyone asks...yes, I also run another script to ANALYZE/OPTIMIZE my tables. Jack -Original

Re: slow response time

2004-07-07 Thread Jeremy Zawodny
On Wed, Jul 07, 2004 at 07:11:17PM +0300, Egor Egorov wrote: Jeremy Zawodny [EMAIL PROTECTED] wrote: So I haven't really done much to optimize things, as this seems like a fairly light load. I'm running 4.0.20 on FreeBSD 4.8 (port build w/Linux Threads). Reliability and

Re: Increasing number of sockets

2004-07-07 Thread Robert Canary
Gee, how about just a little more coffee... ;-) I meant, {long version}... It could be the radius error is reflecting its failure to connect to the database because the database has no connections available. I found the max_connection variable (default is 90) and applied it to the safe_mysqld

Re: moving records between tables?

2004-07-07 Thread Justin Swanhart
LOCK TABLE active_table WRITE, history_table WRITE; #assuming the columns in the tables are exactly #the same insert into history_table select * from active_table; delete from active_table; UNLOCK TABLES; if the columns aren't the same between the tables then you need to do something like

RE: update query question

2004-07-07 Thread Chris W. Parker
[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] on Wednesday, July 07, 2004 11:08 AM said: Have you tried this other way of making an inner join? no i did not because i did know you could do a JOIN on an UPDATE. thanks for your suggestions i will try them out. chris. -- MySQL General Mailing

RE: How to query an oracle table from a mysql database

2004-07-07 Thread Victor Pendleton
A custom MySQL UDF is one solution if you are comfortable with C. Off list question: What sort of `problem` does PHP have with Oracle 9i that is prohibiting you? -Original Message- From: Alonso, Claudio Fabian To: 'Steve Davies' Cc: ''[EMAIL PROTECTED]' ' Sent: 7/7/04 11:18 AM Subject:

RE: Drivers to use with VB6

2004-07-07 Thread Victor Pendleton
Are you using a DSN or DSN-less? Have you checked out mysqlvb.com? -Original Message- From: Greg Zimmermack To: [EMAIL PROTECTED] Sent: 7/7/04 11:27 AM Subject: Drivers to use with VB6 I am using VB6 and ADO in conjunction with ODBC inorder to connect to a MySQL database. This is seems

Re: Mysql Newbie: Help requested...password hash should be a 16 digit hexadecimal number

2004-07-07 Thread Paul DuBois
At 22:34 +0530 7/7/04, Sanjay Arora wrote: I am using Mysql on RH Linux 9. I am getting the following error. Command and result are given below alongwith \s output for diagnostic purposes. I have created a dns database and am trying to create a user mysql user dns with all privileges on it. mysql

Re: Space is filling up

2004-07-07 Thread Justin Swanhart
--- Asif Iqbal [EMAIL PROTECTED] wrote: gerald_clark wrote: What about getting a bigger drive? I guess that would be my only option eh? If any of your data can be considered history data that is never modified, you could create compressed myISAM tables for that data, removing it from the

RE: How to query an oracle table from a mysql database

2004-07-07 Thread Alonso, Claudio Fabian
Hello Victor, For your off-topic question, my problem is the same as the one described here: http://bugs.php.net/bug.php?id=28680 I can't access using 9.2. They say 9.2 is too new for current PHP versions. I'll install an older version of the Oracle client and try again. If I can't do it I'll be

Re: Increasing number of sockets

2004-07-07 Thread Paul DuBois
At 13:41 -0500 7/7/04, Robert Canary wrote: Gee, how about just a little more coffee... ;-) I meant, {long version}... It could be the radius error is reflecting its failure to connect to the database because the database has no connections available. I found the max_connection variable

INSERT DISTINCT?

2004-07-07 Thread John Mistler
Is there a way to do an INSERT on a table only if no row already exists with the same info for one or more of the columns as the row to be inserted? That is, without using a method outside SQL? Thanks, John -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To

high priority messages (Re: How to query an oracle table from a mysql database)

2004-07-07 Thread Martijn Tonies
Hi all, Please, do NOT send messages to a public mailinglist as high priority by flagging the email itself. You're sending this message to hundreds/thousands of people. It might be important to you, but not for each recipient. If someone has filters/triggers for important email, he will get

Re: Space is filling up

2004-07-07 Thread gerald_clark
Jack Coxen wrote: If you database contains time-based data you could age out old records. I only need to keep data for 6 months so I run a nightly script to delete any records more than 6 months old. And before anyone asks...yes, I also run another script to ANALYZE/OPTIMIZE my tables. But

Re: INSERT DISTINCT?

2004-07-07 Thread Joshua J. Kugler
Certainly, it's called making a unique index on the field(s) you want to keep unique. Hope that helps. j- k- On Wednesday 07 July 2004 12:48 pm, John Mistler said something like: Is there a way to do an INSERT on a table only if no row already exists with the same info for one or

Re: INSERT DISTINCT?

2004-07-07 Thread Justin Swanhart
Create a unique index on each column that you don't want to be duplicated. create UNIQUE index table_u1 on table(some_column) --- John Mistler [EMAIL PROTECTED] wrote: Is there a way to do an INSERT on a table only if no row already exists with the same info for one or more of the columns as

RE: INSERT DISTINCT?

2004-07-07 Thread Matt Chatterley
This is certainly the first step. Also, if you want to insert only those rows which are not already present, you can use something akin to: INSERT INTO table1 SELECT * FROM table2 t2 LEFT JOIN table1 t1 ON (unique row identifiers -- whatever these are for your data) WHERE t1.XYZ IS NULL

Re: INSERT DISTINCT?

2004-07-07 Thread David Felio
Try insert ignore. Check the manual page for insert syntax. On Wednesday, July 7, 2004, at 05:22 PM, Matt Chatterley wrote: This is certainly the first step. Also, if you want to insert only those rows which are not already present, you can use something akin to: INSERT INTO table1 SELECT *

Bug #1858: Repeatable on 3.53.57

2004-07-07 Thread Joe Kislo
A week ago I posted that we were having horrible problems with MySQL's replication failing and reconnecting (after years of reliable operation). I still haven't come up with a solution to the problems, it just looks like the master keeps tearing down the replication connection, and the slave

Re: DBF to MySQL

2004-07-07 Thread Joshua J. Kugler
I'm sure it did...DBF and XLS files are not plain text. What Chincilla gave your was a bit of code for importing CSV files, after they had been exported from Excel. I'm not sure *why* he gave you that code. You can do one of two things. 1) Open up those files in Excel (it will also open DBF

selecting rows that match two criteria

2004-07-07 Thread Jonathan Duncan
I am trying to figure out what my select statement should be to combine both of these into one: SELECT userid FROM Answers WHERE answer like Education%; SELECT userid FROM Answers WHERE answer=Student; Table Answers looks like: -id int -userid int -answer text for each row there would be

Re: Very strange database behavior

2004-07-07 Thread Bill Allaire
Paul, Has this class worked properly in the past? Have you tried executing the queries your class executes manually via the mysql client or a similar application removing your Java code from the equation? Have you run 'check table' if the table is either MyISAM or InnoDB? On Jul 7, 2004, at

Re: selecting rows that match two criteria

2004-07-07 Thread Lachlan Mulcahy
Jonathan, I'm going to assume you want to match the answer fields in the way those 2 query examples do and that the qid field refers to the Question number. SELECT userid FROM Answers a1 JOIN Answers a2 ON a1.userid = a2.userid WHERE a1.qid = 5 AND

Re: selecting rows that match two criteria

2004-07-07 Thread Justin Swanhart
You can do it one of two ways.. Either you can do a self join like the following: select t1.userid from answers t1, answers t2 where t1.qid = 5 and lower(t1.answer)='student' and t2.qid = 6 and lower(t2.answer) like 'edu%' and t1.userid = t2.userid or you can use a union

a OPS$ equivalent in mysql

2004-07-07 Thread Ian Holsman
Hi. an OPS$ account in oracle lets a given user log in automatically to a OPS$user-id account from the local machine without a password. but not from another user-id on the same machine. ie [EMAIL PROTECTED] $ mysql -u ianh would work but [EMAIL PROTECTED] $ mysql -u ianh would not. Does mysql

Re: INSERT DISTINCT?

2004-07-07 Thread John Mistler
I am not certain from the documentation whether it is advisable to create a unique multi-column index on two columns that are already individually indexed. The individual indexes I assume I need for when I do a SELECT on those particular columns. The multi-column one I need for the reasons

RE: INSERT DISTINCT?

2004-07-07 Thread Lachlan Mulcahy
John, As far as I'm aware there is no problem creating a multi-column unique index on fields that have already been indexed seperately. The multi column index will be used in situations where you are trying to find unique _combinations_ of the two fields and the individual indexes in situations

Re: More semaphore mystery

2004-07-07 Thread Heikki Tuuri
Mitch, the answer is the same as the last time: send me the FULL .err log gzipped. Regards, Heikki - Original Message - From: Mitch Pirtle [EMAIL PROTECTED] Newsgroups: mailing.database.myodbc Sent: Tuesday, July 06, 2004 3:50 PM Subject: More semaphore mystery Hi gang, Back in

Re: a OPS$ equivalent in mysql

2004-07-07 Thread Paul DuBois
At 11:17 +1000 7/8/04, Ian Holsman wrote: Hi. an OPS$ account in oracle lets a given user log in automatically to a OPS$user-id account from the local machine without a password. but not from another user-id on the same machine. ie [EMAIL PROTECTED] $ mysql -u ianh would work but [EMAIL

RE: INSERT DISTINCT?

2004-07-07 Thread Lachlan Mulcahy
John, Here is an example which should clarify for you: INSERT INTO testTable (a,b) VALUES ('AVAL', 'BVAL'); Let's say testTable looks like this: +-+ | a | b | --| | AVAL | EVAL | | FVAL | BVAL | +-+ You have your unique index over (a,b). The insert

Re: INSERT DISTINCT?

2004-07-07 Thread Paul DuBois
At 19:26 -0700 7/7/04, John Mistler wrote: I am not certain from the documentation whether it is advisable to create a unique multi-column index on two columns that are already individually indexed. The individual indexes I assume I need for when I do a SELECT on those particular columns. The

mysqladmin shutdown command hangs

2004-07-07 Thread ravi.ramachandra
Hello: We are using mysql 4.0.17 on Linux We have installed a mysql database on our our server. The data and log files are stored on an external SCSI disk array which is connected to our server using FC cable connected to SCSI port. The mysql process is running on the local machine but the

Re: INSERT DISTINCT?

2004-07-07 Thread Emmett Bishop
Paul, What about the case where column A is a foreign key? In that case would you be forced to keep the index on column A or could you use the A,B index since A is the left most prefix? Tripp --- Paul DuBois [EMAIL PROTECTED] wrote: At 19:26 -0700 7/7/04, John Mistler wrote: I am not

Control Center autoincrement

2004-07-07 Thread Paul Wallace
Hello, May I specify a column to auto increment in the Control Center UI, either on or after creation? thanks Paul.

Re: mysqladmin shutdown command hangs

2004-07-07 Thread Charles Sprickman
On Thu, 8 Jul 2004 [EMAIL PROTECTED] wrote: When there is an accidental communication breakdown between disk array and server on which mysql process is running (e.g, pulling out FC cable), this is being detected by our scripts and then we are trying to shutdown the mysql process by using

RE: mysqladmin shutdown command hangs

2004-07-07 Thread ravi.ramachandra
Charles, Sometimes, the connection to disk array will not be available to this server for long time and in such a case, we want another server to connect to the disk array and run mysql processes. Unfortunately, from our design, this cannot happen until the existing server shuts down. I am

Control Center autoincrement

2004-07-07 Thread Paul Wallace
Hello, May I specify a column to auto increment from within the Control Center UI, either on or after creation? thanks Paul.

deleting a data of fields on a table

2004-07-07 Thread Louie Miranda
Is it possible to delete only a specific field on a table? lets say i have. table: dump field: - countid - random - name countid, is an auto increment field random, is a random words, etc name, is a field for specifiying where they belong. Now, how can i delete a specific data on each field?

Re: INSERT DISTINCT?

2004-07-07 Thread Michael Stassen
From the manual http://dev.mysql.com/doc/mysql/en/InnoDB_foreign_key_constraints.html: In the referencing table, there must be an index where the foreign key columns are listed as the first columns in the same order. In the referenced table, there must be an index where the referenced columns