Hi! I'm not sure it would be possible what I want to.
I have a huge query, most of them are independent, and they could have not
answer. What I want is when this happen, I want to change the empty set by
void or 0 or something like that, here it is an example:
mysql select * from
Hiya
I recently imported data on a new server (5.1). But before the importing
I added the feature 'innodb_file_per_table'.
I now want to enable Master - Master replication, but the problem is, im
seeing the following
300 is pretty low - MySQL counts every instance of a table in any query as an
open file. A query that uses the same table twice (with an alias, for
example) thus counts for two open files.
This may also be outside of MySQL, the ulimit for the user running the daemon
may have open files
2011/04/25 18:45 +, Larry McGhaw
CREATE VIEW `myview2` AS
SELECT a.*, IF(b.`Name` IS NULL, '', b.`Name`) AS `TypeName`
FROM `mytable` a
LEFT JOIN `types` b ON a.`Type` = b.`ID`;
Well, for this construct
IF(b.`Name` IS NULL, '', b.`Name`)
there is a special function
2011/04/25 17:42 +0300, Andre Polykanine
Here is the first one.
We have two queries:
SELECT `blogs`.* FROM `Blogs` LEFT JOIN `Users` ON
`Blogs`.`UserId`=`Users`.`Id`;
and the following one:
SELECT `Blogs`.* FROM `Blogs`, `Users` WHERE
I would go with join rather than where condition.
2011/4/26 Halász Sándor h...@tbbs.net
2011/04/25 17:42 +0300, Andre Polykanine
Here is the first one.
We have two queries:
SELECT `blogs`.* FROM `Blogs` LEFT JOIN `Users` ON
`Blogs`.`UserId`=`Users`.`Id`;
and the following
Hi there,
I installed a mysql server on my Mac using homebrew.
$ mysql --version
mysql Ver 14.12 Distrib 5.0.91, for apple-darwin10.0 (i386) using
EditLine wrapper
When trying to start it I get
$ mysql.server start
Starting MySQL
.. ERROR! The server quit without updating PID file
As far as I know, it isn´t possible.
The right way is to check how many rows your select has returned.
--
João Cândido de Souza Neto
Rocio Gomez Escribano r.go...@ingenia-soluciones.com escreveu na
mensagem
news:000601cc03e2$fd3c9540$f7b5bfc0$@go...@ingenia-soluciones.com...
Hi! I'm not
Hi!
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Am 26.04.2011 14:56, schrieb Gergely Buday:
Hi there,
I installed a mysql server on my Mac using homebrew.
$ mysql --version
mysql Ver 14.12 Distrib 5.0.91, for apple-darwin10.0 (i386) using
EditLine wrapper
When trying to start it I get
$ mysql.server start
Starting MySQL
..
Thank you so much!! It works!!
mysql SELECT COUNT(*) usuarios,codigo FROM usuarios WHERE codigo = 45;
+--++
| usuarios | codigo |
+--++
|0 | NULL |
+--++
1 row in set (0.00 sec)
-Mensaje original-
De: João Cândido de
You are seeing *NIX error messages. You need to increase the operating system
settings that control the number of files that a process can open.
I'm very rusty, and never really used Linux, so I can't tell you the exact
parameters. There are probably two: total number of open files, and files
Hello Halбsz,
Aha. So, I should write
SELECT `Blogs`.* INNER JOIN `Users` ON `Users`.`Id`=`Blogs`.`UserId`
instead of my original WHERE clause?
Thanks!
--
With best regards from Ukraine,
Andre
Skype: Francophile
My blog: http://oire.org/menelion (mostly in Russian)
Twitter:
Go to the cmd line and type ps -ef , do you see mysqld listed? If so then it is
already running.
-Original Message-
From: Gergely Buday [mailto:gbu...@gmail.com]
Sent: Tuesday, April 26, 2011 5:56 AM
To: mysql@lists.mysql.com
Subject: problem starting server
Hi there,
I installed a
On 04/26/11 05:32, Halász Sándor wrote:
2011/04/25 18:45 +, Larry McGhaw
CREATE VIEW `myview2` AS
SELECT a.*, IF(b.`Name` IS NULL, '', b.`Name`) AS `TypeName`
FROM `mytable` a
LEFT JOIN `types` b ON a.`Type` = b.`ID`;
Well, for this construct
IF(b.`Name` IS NULL,
2011/04/26 17:55 +0300, Andre Polykanine
Aha. So, I should write
SELECT `Blogs`.* INNER JOIN `Users` ON `Users`.`Id`=`Blogs`.`UserId`
instead of my original WHERE clause?
Thanks!
I think so.
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For list archives: http://lists.mysql.com/mysql
To
very useful tool,is it free?
Best regards,
Sharl.Jimh.Tsin (From China **Obviously Taiwan INCLUDED**)
2011/4/26 SQL Maestro Team sql.maes...@gmail.com:
Hi!
SQL Maestro Group announces the release of PHP Generator for MySQL
11.4, a powerful GUI frontend that allows you to generate
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