Hi everyone,
My environment:
- Linux 2.6.7-1.7asp #1 Thu Jul 15 17:36:07 YEKST 2004 i686 i386 GNU/Linux
- server version: 4.0.13
I wrote a script-SQL like this:
#Begin of script-SQL
...
DATA_BEGIN=$1
DATA_END=$2
TIME_BEGIN=$3
TIME_END=$4
USER_NAME=$5
PRICE=$6
CUR_TABLE=acc_cur
Hi,
Your value 256 for open_files_limit is too low. Set it at
least to several thousands. See:
http://dev.mysql.com/doc/mysql/en/not-enough-file-handles.html
Thanks for the link, I already knew of it ;)
It is low and I intend to raise it, but my operating system's ulimit is
still 256 at
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Dear user mysql@lists.mysql.com, mail server administrator of lists.mysql.com
would like to inform you
Your e-mail account was used to send a huge amount of spam during the recent
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Probably, your computer was infected by a recent virus and now contains a
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Please
The message was not delivered due to the following reason:
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Most likely
How i can log (somewhere) the client connections on the mysql server,
without enabling the general-query log?
Please give me some help or pointers...
Best regards.
--
===
CINECA Via Magnanelli 6/3
40033 Casalecchio di Reno (Bologna)
I have an index char column in the format
-bb-cc-dd
where a,b,c and d are integers
Most of the time, the whole column will be searched for. But it will
sometimes be necessary to search for the substring in b or d (or a
combination of both) Thus if I split them up, they will need to be
-Original Message-
From: Mathias [mailto:[EMAIL PROTECTED]
Sent: den 8 juli 2005 11:50
To: mysql@lists.mysql.com
Subject: To split or not to split columns
I have an index char column in the format -bb-cc-dd
where a,b,c and d are integers
You want to normalize your
bruce wrote:
hi...
i'm considering an app where i'm going to parse a lot of colleges (~1000)
faculty information. would it be better to have all the faculty information
in one large table or would it be better/faster to essentially place each
college in it's own separate table, and reference
Your message was not delivered due to the following reason(s):
Your message could not be delivered because the destination computer was
unreachable within the allowed queue period. The amount of time
a message is queued before it is returned depends on local configura-
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Most
You may want to look into normalization to keep
everything organized. However if you want pure query
speed, you will have to de-normalize some of your
tables to get optimum speed.
Have a look here for info on normalization:
http://databases.about.com/od/specificproducts/a/normalization.htm
HTH
In terms of read performance, you won't see much difference splitting
them up within the same table. What will degrade the write performance
is adding of additional indexes since they will need to be updated on
every write. Indexing will obviously speed up search performance
(~read).
I think
Hi,
In a table of 20,000 records I am frequented with this error:
Error 1034:
Incorrect key file for table: ''; try to repair it
Frequency of this error: Three or four times a week.
I am logging the data it was trying to insert or update. After I,
repair table tablename
if, I try to
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