Hello,
Have anybody tried to upgrade 5.1 to 5.6? I believe running mysql_upgrade
should be enough, but does there are some caveats?
Ilya Kazakevich.
states also but if you speak about
states in general you may need key (many countries over the world have
states)
The same is about cities: city name is too big to be used as primary key,
and there may be many cities with similar names.
Ilya.
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Hello Richard,
the count(*) for each week of 2013 so that I end up with:
http://dev.mysql.com/doc/refman/5.1/en/group-by-functions.html
Ilya.
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Limit : 3.91 G
Physical Memory : 5.82 G
I am not sure if it works correctly with 5.6
Ilya
-Original Message-
From: Denis Jedig [mailto:d...@syneticon.net]
Sent: Saturday, April 20, 2013 1:17 AM
To: mysql@lists.mysql.com
Subject: Troubleshoot excessive memory usage in InnoDB
Hi all
will increase it now.
But I will need to disable swapping also to prevent my OS from swapping out
InnoDB pages.
Ilya.
-Original Message-
From: Ananda Kumar [mailto:anan...@gmail.com]
Sent: Tuesday, April 16, 2013 2:06 AM
To: Ilya Kazakevich
Cc: MySQL
Subject: Re: Mesaure query speed
several ideas:
* Count 'Innodb_rows_read' or 'Innodb_pages_read' instead of actual time
* Set pool as small as possible to reduce its effect on query speed
* Set pool larger than my db and run query to load all data into pool and
measure speed then
How do you measure your queries' speed?
Ilya Kazakevich
.
If somebody knows more reasons to store files in DB -- post it here, please.
It would be interesting. Thanks.
Ilya.
-Original Message-
From: John G. Heim [mailto:jh...@math.wisc.edu]
Sent: Wednesday, February 10, 2010 10:09 PM
To: mysql@lists.mysql.com
Subject: how things get messed up
About 5
Which MySQL server do you use?
What is your storage engine?
-Original Message-
From: Ken D'Ambrosio [mailto:k...@jots.org]
Sent: Friday, February 05, 2010 5:26 PM
To: mysql@lists.mysql.com
Subject: Help optimizing settings?
I've got a fairly large -- 100+ GB -- MySQL database. It
column length for column 'test' (max = 255).
Use BLOB instead
Fix:
N/A
Submitter-Id: submitter ID
Originator:Ilya Martynov
Organization:
Ilya Martynov (http://martynov.org/)
MySQL support: none
Synopsis: Cannot create column having ENUM() type
Severity: non-critical
provide OO access for SQL database.
Take a look at http://poop.sourceforge.net.
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go directly to http://www.innobase.fi/
DO Have a good reading.
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records in
l alphabetical order.
l Any ideas?
Use two queries: one to get records where depart = 'center' and second
for rest of the depart records.
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only if databases fit RAM.
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unnecessary load from database and gives speed of static data
requests.
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So could I force mysql to load the indexes into memory when you start the
ES computer?
Run your queries manually on startup?
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and that tables exist
M but 'show tables;' doesn't seem to work. I am sure it is user error
M but could you please show me my error.
IMHO sounds like a bug. I think you should submit bugreport.
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M How would I select all the tables _names_ in a particular database? Is it possible?
M i.e. Select table_names from tables;
SHOW TABLES FROM database_name;
or
SHOW TABLES;
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.
mysqldump
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value into
PD the query string. See the DBI docs.
Only use placeholders. $dbh-quote() is unreliable (and this fact is
documented in DBI documentation).
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problem disappeared.
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it
can be a limitation for some applications.
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SG MySQL
SG Will not do transactions till V4...
Wrong. InnoDB table type supports transactions.
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pushes changes
in another set of tables on first mysqld.
So my question: Will it work?
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.
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by (or qq{} =) ).
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.
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WW Can you use a raw partition with MySQL much like you can with Oracle or
WW Sybase?
Probably tables with InnoDB type can work on raw devices.
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.
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application on-error-clean-up code here
}
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operation...
Only if AutoCommit is off and table type support transactions.
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'Transaction' there for more info.
P.S. Be sure that you have latest version of Msql-Mysql-modules
(version 1.2216). Previous versions does not support transactions.
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it handles requests faster) than before. Also
people who tested it on test server before deploying on production
said that it worked faster.
This is real experience.
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the CPUs the way you'd
JZ like.
AFAIK you can compile mysql on FreeBSD with LinuxThreads (they have
been ported on FreeBSD). In this case threads will spread across the
CPUs as on Linux.
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1,800,000 records (size of MyISAM files about 70Mb).
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Thanks for idea again :)
HT Ilya,
HT actually, it may be safest that you use CREATE TABLE to create
HT an identical InnoDB table, and then do
HT INSERT INTO newtable SELECT * FROM oldtable WHERE yourkey something
HT AND yourkey somethingelse;
HT
to
$sql_statement = insert into table(tars) values(?);
$sth = $dbh-do($sql_statement, undef, $string);
WA $sth-execute;
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means that you
cannot get your data. It just means that mysql client cannot show it.
You can use perl script to get your data.
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to be puffy and jlo).
SELECT * FROM activities WHERE month='$month' AND year='$year' AND
username!='myuen'
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Does somebody try to build MySQL-3.2.36 on Slackware 7.1?
I have an error trying to make test.
configuration:
[30-Mar-01][15:55]{ilya@odin} ~/Sources/mysql-3.23.36./configure
--prefix=/usr/local/mysql --enable-assembler --with-berkeley-db
--with-charset=koi8_ru --with-extra-charsets=latin1
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