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Two nearly equal querys, but very different performance  
3,322
Sven Markwart
09/12/2006 08:54AM
Re: Two nearly equal querys, but very different performance  
2,016
Toa Sty
09/12/2006 09:34AM
sometimes, mysql don't use an existing index  
6,594
Bart Peeters
09/04/2006 12:17PM
Re: sometimes, mysql don't use an existing index  
2,969
Toa Sty
09/11/2006 06:29AM
slow corelated subquery, not sure how to rewrite  
3,856
Tait Larson
09/01/2006 06:42PM
Re: slow corelated subquery, not sure how to rewrite  
2,176
Tait Larson
09/03/2006 12:00AM
Re: slow corelated subquery, not sure how to rewrite  
2,031
KimSeong Loh
09/10/2006 10:18PM
best way to create 'next' and 'previous' text  
2,949
Johannes Fosseus
09/10/2006 01:53AM
Re: best way to create 'next' and 'previous' text  
1,785
Bob Field
09/10/2006 09:01AM
Best index for my table  
3,549
Johannes Fosseus
09/09/2006 01:01AM
Re: Best index for my table  
1,969
Bob Field
09/09/2006 02:01PM
Re: Best index for my table  
1,921
Johannes Fosseus
09/10/2006 12:37AM
Why do mysql use temporary and filesort here?  
3,679
Johannes Fosseus
09/08/2006 04:50AM
Re: Why do mysql use temporary and filesort here?  
2,374
Björn Steinbrink
09/08/2006 06:36AM
slow selects  
3,112
Danie Van der Walt
08/31/2006 08:02AM
Re: slow selects  
2,067
Toa Sty
08/31/2006 08:43AM
Re: slow selects  
2,054
Danie Van der Walt
08/31/2006 09:06AM
Re: slow selects  
2,056
Toa Sty
09/01/2006 03:04AM
Re: slow selects  
2,006
Danie Van der Walt
09/01/2006 04:17AM
Re: slow selects  
2,280
Toa Sty
09/01/2006 04:50AM
Re: slow selects  
2,010
Danie Van der Walt
09/01/2006 07:24AM
Re: slow selects  
2,059
Toa Sty
09/01/2006 08:16AM
Re: slow selects  
2,049
Danie Van der Walt
09/02/2006 12:52PM
Query Optimization  
3,024
Will Buckner
08/21/2006 11:05AM
Re: Query Optimization  
1,861
Bill Karwin
08/21/2006 06:44PM
Re: Query Optimization  
1,867
Will Buckner
08/27/2006 11:50PM
Re: Query Optimization  
2,004
Anthony Willard
08/28/2006 07:33AM
Optimizing a UNION Query  
6,549
Charles Salvia
08/23/2006 08:16PM
Re: Optimizing a UNION Query  
2,850
Toa Sty
08/24/2006 05:28AM
Re: Optimizing a UNION Query  
2,897
Charles Salvia
08/24/2006 12:12PM
Re: Optimizing a UNION Query  
5,610
Toa Sty
08/25/2006 06:14AM
Re: Optimizing a UNION Query  
2,838
Toa Sty
08/24/2006 04:59AM
Really need help with optimization  
3,292
Anders Bergman
08/22/2006 01:43PM
Re: Really need help with optimization  
1,976
Toa Sty
08/23/2006 12:50AM
Re: Really need help with optimization  
2,055
Anders Bergman
08/23/2006 01:24PM
Re: Really need help with optimization  
1,987
Toa Sty
08/24/2006 04:53AM
Re: Really need help with optimization  
2,005
Anders Bergman
08/22/2006 01:46PM
Left Join Problem  
2,918
Clodelio Delfino
08/22/2006 11:30PM
Re: Left Join Problem  
1,954
Bob Field
08/23/2006 09:00AM
Re: Left Join Problem  
1,984
Clodelio Delfino
08/23/2006 06:53PM
Re: Left Join Problem  
1,855
Bob Field
08/23/2006 07:12PM
Re: Left Join Problem  
2,070
Clodelio Delfino
08/23/2006 11:01PM
optimizing the query.  
2,936
ronak desai
07/26/2006 07:13AM
Re: optimizing the query.  
2,071
Yogesh Salvi
08/22/2006 12:37PM
Re: optimizing the query.  
1,989
Toa Sty
08/04/2006 04:50AM
Re: optimizing the query.  
1,919
KimSeong Loh
07/27/2006 12:13AM
cant get LEFT JOIN to work properly when ORDER'ing BY  
2,632
Liutauras
08/20/2006 02:11AM
Re: cant get LEFT JOIN to work properly when ORDER'ing BY  
1,818
Liutauras
08/22/2006 03:26AM
cant get LEFT JOIN to work properly when ORDER'ing BY  
6,805
Liutauras
08/20/2006 01:36AM
Re: cant get LEFT JOIN to work properly when ORDER'ing BY  
8,639
Toa Sty
08/21/2006 07:25AM
Re: cant get LEFT JOIN to work properly when ORDER'ing BY  
4,274
Toa Sty
08/21/2006 07:55AM
Re: cant get LEFT JOIN to work properly when ORDER'ing BY  
3,154
Liutauras
08/22/2006 03:25AM
Force Table Selection Order in JOIN Statement?  
11,780
Frank Osterberg
08/21/2006 02:39AM
Re: Force Table Selection Order in JOIN Statement?  
9,916
Toa Sty
08/21/2006 06:24AM
ORDER BY RAND() taking too much time  
10,703
Yogesh Salvi
04/29/2006 05:30AM
Re: ORDER BY RAND() taking too much time  
4,004
Erin ONeill
06/08/2006 10:38AM
Re: ORDER BY RAND() taking too much time  
2,813
Yogesh Salvi
05/11/2006 04:25AM
Re: ORDER BY RAND() taking too much time  
3,300
Yogesh Salvi
05/03/2006 01:51AM
Re: ORDER BY RAND() taking too much time  
3,620
Ravenous Bugblatter Beast
08/15/2006 05:13PM
Re: ORDER BY RAND() taking too much time  
3,147
Yogesh Salvi
05/03/2006 02:11AM
Re: ORDER BY RAND() taking too much time  
4,326
Yogesh Salvi
05/02/2006 08:44AM
Re: ORDER BY RAND() taking too much time  
3,752
Björn Steinbrink
05/02/2006 02:24PM
Re: ORDER BY RAND() taking too much time  
4,002
Sebastien Caisse
05/01/2006 08:49AM
How to create on-the-fly index on derived table?  
13,079
Nathan Cheng
07/25/2006 01:05PM
Re: How to create on-the-fly index on derived table?  
7,668
Nathan Cheng
08/12/2006 03:04PM
difference performance of simple SELECT (on large tables) between MySql running on Windows XP and on Ubuntu  
3,260
Ed Stone
08/09/2006 03:48PM
EXISTS() optimization  
20,125
Rob Blick
06/07/2006 10:00AM
Re: EXISTS() optimization  
6,839
bill stamp
07/25/2006 07:54AM
Re: EXISTS() optimization  
5,822
Nathan Cheng
07/25/2006 01:13PM
Re: EXISTS() optimization  
5,463
Toa Sty
08/04/2006 04:45AM
Too many rows being read  
3,268
preston
08/02/2006 02:02PM
Re: Too many rows being read  
1,989
Bob Field
08/02/2006 02:18PM
Why does this query filesort?  
3,124
Jim Daemon
07/27/2006 12:05PM
Re: Why does this query filesort?  
2,012
KimSeong Loh
08/01/2006 11:14PM
optimize dynamic sql  
3,903
Bhupesh Tripathi
07/28/2006 03:33AM
query of tables with a longblob  
2,848
paul obyrne
06/23/2006 11:44AM
Re: query of tables with a longblob  
1,897
Nathan Cheng
07/25/2006 01:26PM
Optimizing (a=b and c=d) OR (e=f and g=h)  
3,007
a.h.s. boy
07/20/2006 12:07PM
Re: Optimizing (a=b and c=d) OR (e=f and g=h)  
1,962
KimSeong Loh
07/20/2006 05:29PM
Re: Optimizing (a=b and c=d) OR (e=f and g=h)  
1,939
a.h.s. boy
07/20/2006 10:09PM
With vs Without Primary Key in a particular case  
7,362
Martin Feng
07/19/2006 11:02PM
Re: With vs Without Primary Key in a particular case  
3,031
KimSeong Loh
07/20/2006 05:35PM
SELECT DISTINCT vs UNIQUE KEY  
10,720
Martin Feng
07/19/2006 06:11AM
LEFT JOIN problem  
3,790
Steve Jordi
07/17/2006 07:13AM
Re: LEFT JOIN problem  
1,992
Peter Brawley
07/17/2006 08:07AM
Re: LEFT JOIN problem  
1,939
Steve Jordi
07/17/2006 09:30AM
Re: LEFT JOIN problem  
1,934
Peter Brawley
07/17/2006 12:03PM
Re: LEFT JOIN problem  
1,878
Steve Jordi
07/17/2006 10:23PM
(How) are subqueries optimized involving the same table?  
3,088
Jakobus Dornier
07/13/2006 08:02AM
Re: (How) are subqueries optimized involving the same table?  
2,138
Jakobus Dornier
07/13/2006 08:20AM
Re: (How) are subqueries optimized involving the same table?  
1,975
Bob Field
07/13/2006 08:33AM
Re: (How) are subqueries optimized involving the same table?  
2,172
Jakobus Dornier
07/13/2006 08:40AM
Re: (How) are subqueries optimized involving the same table?  
1,984
Bob Field
07/13/2006 08:53AM
Re: (How) are subqueries optimized involving the same table?  
1,943
Jakobus Dornier
07/13/2006 08:57AM
Re: (How) are subqueries optimized involving the same table?  
2,159
Bob Field
07/13/2006 08:12AM
How to get some documents or articles on the query optimization of MySQL????  
2,799
Hui Sun
07/10/2006 07:10AM
Re: How to get some documents or articles on the query optimization of MySQL????  
1,965
KimSeong Loh
07/10/2006 05:12PM
min() vs limit optimization  
5,969
Paul Medynski
07/02/2006 05:34PM
Re: min() vs limit optimization  
2,389
Apachez
07/02/2006 08:26PM
Re: min() vs limit optimization  
2,331
Paul Medynski
07/03/2006 05:22PM
Re: min() vs limit optimization  
2,494
Apachez
07/04/2006 06:51AM
Slow Union Query Opimization. Need help.  
6,678
Roland Meier
06/29/2006 12:50AM
Re: Slow Union Query Opimization. Need help.  
2,739
Jay Pipes
06/29/2006 04:53PM
Re: Slow Union Query Opimization. Need help.  
3,153
Roland Meier
06/30/2006 02:30AM
Re: Slow Union Query Opimization. Need help.  
3,406
Anthony Willard
06/29/2006 08:24AM
querying time is too high  
3,243
trinath somanchi
06/27/2006 07:31AM
Re: querying time is too high  
2,093
Anthony Willard
06/29/2006 08:52AM
Re: querying time is too high  
2,116
trinath somanchi
06/29/2006 12:48AM
Re: querying time is too high  
2,155
Jim Daemon
06/28/2006 10:00AM
Boolean search and 99% cpu  
2,855
Taiyo Rai
06/27/2006 07:17AM
Joining several multi-to-multi tables  
4,032
adambrill1986
06/20/2006 11:59AM
Re: Joining several multi-to-multi tables  
2,241
adambrill1986
06/23/2006 06:58AM
Re: Joining several multi-to-multi tables  
2,150
adambrill1986
06/20/2006 12:21PM
Re: Joining several multi-to-multi tables  
2,125
adambrill1986
06/20/2006 01:44PM
Re: Joining several multi-to-multi tables  
2,108
Bill Karwin
06/20/2006 04:23PM
Re: Joining several multi-to-multi tables  
2,084
KimSeong Loh
06/20/2006 06:02PM
Re: Joining several multi-to-multi tables  
2,071
Bill Karwin
06/20/2006 01:02PM
Re: Joining several multi-to-multi tables  
2,072
Bill Karwin
06/20/2006 12:14PM
no optimization?  
2,894
Uwe
05/22/2006 05:47AM
Re: no optimization?  
2,064
Apachez
06/18/2006 08:50PM
Re: no optimization?  
2,010
Uwe
06/21/2006 10:40AM
Regression: Query optimized in 4.1, not at all in 5.0, why?  
2,924
William Shubert
06/21/2006 12:35AM
Re: Regression: Query optimized in 4.1, not at all in 5.0, why?  
2,010
William Shubert
06/21/2006 12:36AM
RollOver one table - having 10millin records - Still 100,000 insertion/sec at bottom - Need to delete 30,00,000 records in 1second after every 30 min  
5,495
Ijaz Rashid
06/20/2006 07:06AM
Re: RollOver one table - having 10millin records - Still 100,000 insertion/sec at bottom - Need to delete 30,00,000 records in 1second after every 30 min  
2,350
Bill Karwin
06/20/2006 12:18PM
Re: RollOver one table - having 10millin records - Still 100,000 insertion/sec at bottom - Need to delete 30,00,000 records in 1second after every 30 min  
2,492
Ijaz Rashid
06/20/2006 07:18AM
Why does this delete statement take so long?  
5,472
Jim Daemon
06/15/2006 02:11PM
Re: Why does this delete statement take so long?  
2,292
Bob Field
06/15/2006 03:56PM
Re: Why does this delete statement take so long?  
2,200
Jim Daemon
06/15/2006 04:16PM
Why isn't the index being used?  
3,722
Jim Daemon
06/12/2006 06:11PM
Re: Why isn't the index being used?  
2,168
Jim Daemon
06/13/2006 04:03PM
Re: Why isn't the index being used?  
2,152
Jim Daemon
06/13/2006 09:54AM
Re: Why isn't the index being used?  
2,069
KimSeong Loh
06/13/2006 10:34AM
Re: Why isn't the index being used?  
2,139
Bob Field
06/13/2006 09:11AM
Re: Why isn't the index being used?  
2,376
Jim Daemon
06/13/2006 08:41AM
Re: Why isn't the index being used?  
2,092
Bob Field
06/12/2006 06:41PM
How to avoid temporary and filesort?  
6,343
Jim Daemon
06/13/2006 08:49AM
Re: How to avoid temporary and filesort?  
3,384
KimSeong Loh
06/13/2006 09:06AM
Re: How to avoid temporary and filesort?  
3,588
Jim Daemon
06/13/2006 09:39AM
Re: How to avoid temporary and filesort?  
2,963
KimSeong Loh
06/13/2006 10:31AM
How to avoid filesort  
13,015
Jim Daemon
06/11/2006 06:50PM
Re: How to avoid filesort  
6,414
Jim Daemon
06/12/2006 01:30PM
Re: How to avoid filesort  
7,130
KimSeong Loh
06/12/2006 08:40AM
Re: How to avoid filesort  
6,368
Jim Daemon
06/12/2006 09:10AM
Help with optimizing GROUP BY query  
5,470
lasse
06/12/2006 07:16AM
Re: Help with optimizing GROUP BY query  
2,767
KimSeong Loh
06/12/2006 08:37AM
Re: Help with optimizing GROUP BY query  
2,664
lasse
06/12/2006 10:54AM
Re: Help with optimizing GROUP BY query  
2,664
KimSeong Loh
06/12/2006 01:01PM
Why is FULLTEXT index not used with a LEFT JOIN?  
4,447
Tad Woods
06/11/2006 10:29AM
Re: Why is FULLTEXT index not used with a LEFT JOIN?  
2,400
Tad Woods
06/11/2006 03:39PM
fast way to delete records?  
14,624
ylu
05/23/2006 03:35PM
Re: fast way to delete records?  
6,372
KimSeong Loh
05/24/2006 06:43PM
Re: fast way to delete records?  
4,719
tri.truong
06/08/2006 12:30PM
Re: fast way to delete records?  
7,049
Anthony Willard
05/24/2006 07:29AM
Will sort help optimizing this query?  
3,210
binglew
06/08/2006 11:27AM
count(*) versus mysql_num_rows  
28,843
nachomonterde
11/21/2005 03:54PM
Re: count(*) versus mysql_num_rows  
5,866
Rob Blick
06/08/2006 09:41AM
Re: count(*) versus mysql_num_rows  
8,336
Paul Loy
06/02/2006 04:13AM
Re: count(*) versus mysql_num_rows  
9,373
Alexandru Cristescu
11/24/2005 05:55AM
Re: count(*) versus mysql_num_rows  
7,742
Jacky Shu
11/24/2005 09:18AM
Selecting a proper table stucture  
3,729
Daniel Misio
06/07/2006 04:07AM
Re: Selecting a proper table stucture  
2,197
Anthony Willard
06/07/2006 09:47AM
Slow Database  
9,690
Dominic Hayhoe
05/31/2006 11:29AM
Re: Slow Database  
3,611
Dominic Hayhoe
06/01/2006 04:14AM
Re: Slow Database  
2,761
KimSeong Loh
06/01/2006 06:40PM
Re: Slow Database  
3,301
Dominic Hayhoe
06/02/2006 02:17AM
Re: Slow Database  
3,089
KimSeong Loh
06/05/2006 10:37AM
Re: Slow Database  
2,958
KimSeong Loh
05/31/2006 07:43PM
Re: Slow Database  
2,870
Dominic Hayhoe
06/01/2006 12:19AM
Re: Slow Database  
3,819
Peter Brawley
05/31/2006 12:06PM
Re: Slow Database  
3,149
Dominic Hayhoe
05/31/2006 12:43PM
Help to optimize my query  
2,676
björn spiegel
06/04/2006 09:34AM
Optimizing query with multiple joins  
5,221
EM Ayllon
05/29/2006 05:07AM
Re: Optimizing query with multiple joins  
2,492
EM Ayllon
05/30/2006 07:15AM
Re: Optimizing query with multiple joins  
2,592
Peter Brawley
05/29/2006 08:36AM
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