liaojian_163 schrieb:
hi,all.
In my mysql server,I have a strange problem.
can someone help me?
Thank you.
mysql select id,classid,newstime from phome_ecms_zhichang where classid=41
and id 2500 order by id desc limit 10;
+--+-+-+
| id | classid |
[EMAIL PROTECTED] schrieb:
Hi,
I did a select on a primary key..
Select max(account_id) from mytable;
-- it gave me a value X
I did a select with order by
Select account_id from mytable order by account_id desc limit 3
-- it gave me a value of Y ( Y is the
Thanks, Sebastian!
I have tried this one before. The problem is that it finds all items
the tags of which include EITHER 'blue' OR 'red', not 'blue' AND 'red':
mysql SELECT DISTINCT items.title from items inner join taggings on
(items.id = taggings.item_id) inner join tags on (tags.id =
Ingo Weiss schrieb:
Thanks, Sebastian!
I have tried this one before. The problem is that it finds all items the
tags of which include EITHER 'blue' OR 'red', not 'blue' AND 'red':
oh ... and ..., i missred
SELECT DISTINCT items.*
FROM items
INNER JOIN taggings
ON
Hi,
A user enters a date range (ie. 2 dates, '2008-04-01' and
'2008-04-03'), the problem is to determine how many open events exist
on each day in this interval.
Assume that the events table has a start_date and an end_date.
One way to solve this problem, is to create an inline view in the
thank you Sebastian!
I have re-created the table.there are not any problems in the table.
if the table is new,need to rebuild de indexes?
- Original Message -
From: Sebastian Mendel [EMAIL PROTECTED]
To: liaojian_163 [EMAIL PROTECTED]
Cc: mysql@lists.mysql.com
Sent: Wednesday, April 23,
Hi,
What I'm trying to do is to create a new InnoDB table on a different disk and
symlink it to an existing database.
I have innodb_file_per_table turned on and here is how I tried to do it
mysql \u test
mysql create table test (...) ENGINE = 'InnoDB';
mysql\q
move the test.ibd file to the
liaojian_163 schrieb:
thank you Sebastian!
I have re-created the table.there are not any problems in the table.
if the table is new,need to rebuild de indexes?
no
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Sebastian Mendel
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Hi,
On Wed, Apr 23, 2008 at 8:42 AM, Morten Primdahl [EMAIL PROTECTED] wrote:
Hi,
A user enters a date range (ie. 2 dates, '2008-04-01' and
'2008-04-03'), the problem is to determine how many open events exist
on each day in this interval.
Assume that the events table has a
Dobromir Velev schrieb:
Hi,
What I'm trying to do is to create a new InnoDB table on a different disk and
symlink it to an existing database.
I have innodb_file_per_table turned on and here is how I tried to do it
mysql \u test
mysql create table test (...) ENGINE = 'InnoDB';
mysql\q
move
On Wed, Apr 23, 2008 at 5:42 AM, Morten Primdahl [EMAIL PROTECTED] wrote:
Hi,
A user enters a date range (ie. 2 dates, '2008-04-01' and
'2008-04-03'), the problem is to determine how many open events exist
on each day in this interval.
Assume that the events table has a start_date and
Baron Schwartz schrieb:
Hi,
On Wed, Apr 23, 2008 at 8:42 AM, Morten Primdahl [EMAIL PROTECTED] wrote:
Hi,
A user enters a date range (ie. 2 dates, '2008-04-01' and
'2008-04-03'), the problem is to determine how many open events exist
on each day in this interval.
Assume that the events
Hi,
Thanks for pointing it out - I just found the following commands.
ALTER TABLE tbl_name DISCARD TABLESPACE;
ALTER TABLE tbl_name IMPORT TABLESPACE;
I will test it and let you know if it works
Thanks
Dobromir Velev
On Wednesday 23 April 2008 16:27, Sebastian Mendel wrote:
Dobromir Velev
On Wed, Apr 23, 2008 at 6:31 AM, Sebastian Mendel
[EMAIL PROTECTED] wrote:
Baron Schwartz schrieb:
SQL magic
i knew that you would answer this ... ;-)
And he did it a minute or so faster than me... (though I did rip off
his integers table way back when)
--
Rob Wultsch
[EMAIL PROTECTED]
Thanks Rob and Baron, I'd never heard of the integers table approach
before, really good stuff!
First off your porting over or dealing with formerly oracle code,
right?
Nah, I just learned SQL on Oracle back in the day. DUAL works under
MySQL also - don't know since what revision, but
On Wed, Apr 23, 2008 at 6:39 AM, Morten Primdahl [EMAIL PROTECTED] wrote:
Thanks Rob and Baron, I'd never heard of the integers table approach
before, really good stuff!
If memory serves postgres has something similar built in, so the
syntax is something like
seq(1..100) or something like
Hi
I get
# mysqldump -u root -p dashboard /home/mysql_backup/dashboard.sql
Enter password:
mysqldump: Got error: 1033: Incorrect information in file:
'./dashboard/Actions.frm' when using LOCK TABLES
what am i missing
Thanks and Regards
Kaushal
Does anyone have experience with upgrading large databases (~500GB each)
from MySQL 4.1 to 5.0? The tables are in InnoDB format. We are using the
Community version.
I've read that it's recommended that you use mysqldump and then restore,
but this is not possible for us, as we cannot have our
I have a Solaris box where MySQL 4.0.20 instance is running (to support
Bugzilla 2.22). I have loaded mysql5.0 on the same box (for Bugzilla 3.0.3)
and created a new mysql50 user that I want to use to run this instance with.
I tried to start the instance on another port by running the following
If Linux works the same way as HP-UX (and it should), anything you do to an
open file (including deleting it) has no effect until the file is closed. The
MySQL server is still using the old file. The next time it stops and
restarts, it will follow the symlink. I don't know what the effect of
Has anyone successfully called the C API routines for MySQL from COBOL?
If so how are the parms defined in COBOL?
--
Michael Anderson,
J3k Solutions
Sr.Systems Programmer/Analyst
832.515.3868
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Hello Users-
I think I have an interesting question with regards to applying a function
to date range, I think half of problem solving is explaining it to an
audience so please, bear with me.
There is a table Orders that has two DATE columns, StartDate and EndDate.
The range of dates can vary
I have something I am trying to resolve with an over abundant number of
slow queries. Perhaps it is because of some additional indexes needed. As
soon as I enabled the option 'log_queries_not_using_indexes = 1' in the
configuration file, I started getting messages relating to the select
You may want to try replication. Setup your replication server as
5.0. That server gives you a chance to play to get things right
without affecting the master server. You'll still need to do a dump to
get the slave up to speed. Once you get everything right, you can
switch over and the
I have a table that stores performed transactions and I need to build a
histogram of a number of transactions per day in the requested period.
So, I made a simple query with the group by clause which returns me what
I need:
2008-04-16 65456204
2008-04-17 190838546
2008-04-18
On Thursday 24 April 2008 12:26:09 pm Gary Greenberg wrote:
except that there is no entry for April 20th as there were no
transactions at that day. I need a query to return me zero for that day.
I.e. I need uninterrupted sequence of dates.
I am beating my head at this problem for the whole day
On Wed, Apr 23, 2008 at 9:22 PM, D Hill [EMAIL PROTECTED] wrote:
Can anyone shed some light if I should index wite_desc to speed things up?
No, since you don't use that column at all. If you're not on MySQL 5,
upgrading to MySQL 5 will help. Otherwise, you're best bet is to
rewrite the query
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