LOCK TABLES...WRITE is very likely to reduce performance if you are
using a transactional storage engine, such as InnoDB/XtraDB or PBXT.
The reason is that only one connection is holding the write lock and
no other concurrent operation may occur on the table.
LOCK TABLES is only really usef
According to everything I've read, using LOCK TABLES...WRITE for updates,
inserts and deletes should improve performance of mysql server, but I think
I've been seeing the opposite effect.
I've been doing quite a bit of testing on a 64bit install of CentOS 5.5
installed as a guest OS on a VMWare ES
Partitioning is available in the community edition and has been for a
while now. Support is the only real difference and since Oracle took
over the support available in the community is usually faster and better
than you get from Oracle.
John
On Wed, 2011-09-21 at 16:23 +0200, Claudio Nanni wro
you don't need enterprise for the development environment, you can develop
in community version and deploy in enterprise version. but make sure release
version should be same for both.
On Wed, Sep 21, 2011 at 7:06 AM, Alastair Armstrong <
alasta...@voxorion.co.za> wrote:
> Hi
>
>
>
> Please I nee
> From: Richard Reina
>
> I want to create a US geography database. So far I have categories such as
> state nick names (some states have more than one), state mottos (text 25 to
> 150 characters), state name origins (100-300 characters), state "trivial
> facts", entry into union. My question is
Ah ha! Thanks Derek. I thought INTO was used strictly for inserting the
selected records into another table.
Much appreciated.
On 09/21/2011 02:34 PM, Derek Downey wrote:
SELECT id INTO @row_id FROM myTable WHERE LIMIT 1;
Source
http://dev.mysql.com/doc/refman/5.5/en/select-into-statement
SELECT id INTO @row_id FROM myTable WHERE LIMIT 1;
Source
http://dev.mysql.com/doc/refman/5.5/en/select-into-statement.html
On Sep 21, 2011, at 2:23 PM, Brandon Phelps wrote:
> Hello all,
>
> I would like to create a stored procedure that does the following:
>
> 1. Accepts 4 values as param
Hello all,
I would like to create a stored procedure that does the following:
1. Accepts 4 values as parameters
2. SELECTS 1 record (LIMIT 1) from a table where the 4 parameters match fields
in that table
a. If a record was returned then UPDATE the table
b. If a record was not r
I should have mentioned that there is an example for mysql in the
documentation: http://www.php.net/manual/en/mysql.examples-basic.php. It is
the simplest interface, but it is not object-oriented. Mysqli can be used
either as procedures or as objects.
The differences between mysql, mysqli, and
There is no difference.
It's just a marketing thing.
Enterprise is mainly Support + Enterprise monitor,
the source code is exactly the same, the binaries are just (as they say)
with more optimized compilation,
more often patches are released if you are an Enterprise subscriber.
The only extra feat
It is important to call all of the MySQL functions in the right order. It is
very easy to skip one if you are just learning. I'm not going to give you the
exact function calls, because there are several sets. Pick a set (PDO works
with different databases, so it is most portable) and then keep t
- Original Message -
> From: "Alastair Armstrong"
>
> We are in the process of upgrading from the Free Community Edition of
> MySQL on our Live environment to the Enterprise Edition.
>
> Do we need to do the same for my Development environment or can I
> continue developing on the Commun
Hi
Please I need some advice.
We are in the process of upgrading from the Free Community Edition of
MySQL on our Live environment to the Enterprise Edition.
Do we need to do the same for my Development environment or can I
continue developing on the Community Ed and then simply deploy any cod
your variable is not the result of mysql_query()
empty, contains something else or whatever
Am 21.09.2011 14:16, schrieb valery-christian:
> the meaning of Warning: mysql_fetch_array(): supplied argument is not a valid
> MySQL result resource in C:\Program Files\EasyPHP 2.0b1\www\memo3\index.php
the meaning of Warning: mysql_fetch_array(): supplied argument is not a valid
MySQL result resource in C:\Program Files\EasyPHP 2.0b1\www\memo3\index.php on
line 64
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