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Two nearly equal querys, but very different performance  
3,007
Sven Markwart
09/12/2006 08:54AM
Re: Two nearly equal querys, but very different performance  
1,865
Toa Sty
09/12/2006 09:34AM
sometimes, mysql don't use an existing index  
6,289
Bart Peeters
09/04/2006 12:17PM
Re: sometimes, mysql don't use an existing index  
2,811
Toa Sty
09/11/2006 06:29AM
slow corelated subquery, not sure how to rewrite  
3,542
Tait Larson
09/01/2006 06:42PM
Re: slow corelated subquery, not sure how to rewrite  
2,024
Tait Larson
09/03/2006 12:00AM
Re: slow corelated subquery, not sure how to rewrite  
1,867
KimSeong Loh
09/10/2006 10:18PM
best way to create 'next' and 'previous' text  
2,628
Johannes Fosseus
09/10/2006 01:53AM
Re: best way to create 'next' and 'previous' text  
1,613
Bob Field
09/10/2006 09:01AM
Best index for my table  
3,232
Johannes Fosseus
09/09/2006 01:01AM
Re: Best index for my table  
1,812
Bob Field
09/09/2006 02:01PM
Re: Best index for my table  
1,762
Johannes Fosseus
09/10/2006 12:37AM
Why do mysql use temporary and filesort here?  
3,366
Johannes Fosseus
09/08/2006 04:50AM
Re: Why do mysql use temporary and filesort here?  
2,196
Björn Steinbrink
09/08/2006 06:36AM
slow selects  
2,763
Danie Van der Walt
08/31/2006 08:02AM
Re: slow selects  
1,891
Toa Sty
08/31/2006 08:43AM
Re: slow selects  
1,883
Danie Van der Walt
08/31/2006 09:06AM
Re: slow selects  
1,896
Toa Sty
09/01/2006 03:04AM
Re: slow selects  
1,847
Danie Van der Walt
09/01/2006 04:17AM
Re: slow selects  
2,121
Toa Sty
09/01/2006 04:50AM
Re: slow selects  
1,856
Danie Van der Walt
09/01/2006 07:24AM
Re: slow selects  
1,893
Toa Sty
09/01/2006 08:16AM
Re: slow selects  
1,894
Danie Van der Walt
09/02/2006 12:52PM
Query Optimization  
2,712
Will Buckner
08/21/2006 11:05AM
Re: Query Optimization  
1,715
Bill Karwin
08/21/2006 06:44PM
Re: Query Optimization  
1,727
Will Buckner
08/27/2006 11:50PM
Re: Query Optimization  
1,847
Anthony Willard
08/28/2006 07:33AM
Optimizing a UNION Query  
6,232
Charles Salvia
08/23/2006 08:16PM
Re: Optimizing a UNION Query  
2,688
Toa Sty
08/24/2006 05:28AM
Re: Optimizing a UNION Query  
2,727
Charles Salvia
08/24/2006 12:12PM
Re: Optimizing a UNION Query  
5,414
Toa Sty
08/25/2006 06:14AM
Re: Optimizing a UNION Query  
2,673
Toa Sty
08/24/2006 04:59AM
Really need help with optimization  
2,970
Anders Bergman
08/22/2006 01:43PM
Re: Really need help with optimization  
1,814
Toa Sty
08/23/2006 12:50AM
Re: Really need help with optimization  
1,900
Anders Bergman
08/23/2006 01:24PM
Re: Really need help with optimization  
1,824
Toa Sty
08/24/2006 04:53AM
Re: Really need help with optimization  
1,865
Anders Bergman
08/22/2006 01:46PM
Left Join Problem  
2,613
Clodelio Delfino
08/22/2006 11:30PM
Re: Left Join Problem  
1,787
Bob Field
08/23/2006 09:00AM
Re: Left Join Problem  
1,788
Clodelio Delfino
08/23/2006 06:53PM
Re: Left Join Problem  
1,711
Bob Field
08/23/2006 07:12PM
Re: Left Join Problem  
1,901
Clodelio Delfino
08/23/2006 11:01PM
optimizing the query.  
2,618
ronak desai
07/26/2006 07:13AM
Re: optimizing the query.  
1,862
Yogesh Salvi
08/22/2006 12:37PM
Re: optimizing the query.  
1,835
Toa Sty
08/04/2006 04:50AM
Re: optimizing the query.  
1,764
KimSeong Loh
07/27/2006 12:13AM
cant get LEFT JOIN to work properly when ORDER'ing BY  
2,339
Liutauras
08/20/2006 02:11AM
Re: cant get LEFT JOIN to work properly when ORDER'ing BY  
1,660
Liutauras
08/22/2006 03:26AM
cant get LEFT JOIN to work properly when ORDER'ing BY  
6,419
Liutauras
08/20/2006 01:36AM
Re: cant get LEFT JOIN to work properly when ORDER'ing BY  
8,457
Toa Sty
08/21/2006 07:25AM
Re: cant get LEFT JOIN to work properly when ORDER'ing BY  
4,079
Toa Sty
08/21/2006 07:55AM
Re: cant get LEFT JOIN to work properly when ORDER'ing BY  
2,991
Liutauras
08/22/2006 03:25AM
Force Table Selection Order in JOIN Statement?  
10,681
Frank Osterberg
08/21/2006 02:39AM
Re: Force Table Selection Order in JOIN Statement?  
9,709
Toa Sty
08/21/2006 06:24AM
ORDER BY RAND() taking too much time  
10,267
Yogesh Salvi
04/29/2006 05:30AM
Re: ORDER BY RAND() taking too much time  
3,837
Erin ONeill
06/08/2006 10:38AM
Re: ORDER BY RAND() taking too much time  
2,626
Yogesh Salvi
05/11/2006 04:25AM
Re: ORDER BY RAND() taking too much time  
3,149
Yogesh Salvi
05/03/2006 01:51AM
Re: ORDER BY RAND() taking too much time  
3,439
Ravenous Bugblatter Beast
08/15/2006 05:13PM
Re: ORDER BY RAND() taking too much time  
2,954
Yogesh Salvi
05/03/2006 02:11AM
Re: ORDER BY RAND() taking too much time  
4,120
Yogesh Salvi
05/02/2006 08:44AM
Re: ORDER BY RAND() taking too much time  
3,563
Björn Steinbrink
05/02/2006 02:24PM
Re: ORDER BY RAND() taking too much time  
3,822
Sebastien Caisse
05/01/2006 08:49AM
How to create on-the-fly index on derived table?  
12,540
Nathan Cheng
07/25/2006 01:05PM
Re: How to create on-the-fly index on derived table?  
7,370
Nathan Cheng
08/12/2006 03:04PM
difference performance of simple SELECT (on large tables) between MySql running on Windows XP and on Ubuntu  
2,893
Ed Stone
08/09/2006 03:48PM
EXISTS() optimization  
19,694
Rob Blick
06/07/2006 10:00AM
Re: EXISTS() optimization  
6,625
bill stamp
07/25/2006 07:54AM
Re: EXISTS() optimization  
5,638
Nathan Cheng
07/25/2006 01:13PM
Re: EXISTS() optimization  
5,279
Toa Sty
08/04/2006 04:45AM
Too many rows being read  
2,936
preston
08/02/2006 02:02PM
Re: Too many rows being read  
1,758
Bob Field
08/02/2006 02:18PM
Why does this query filesort?  
2,782
Jim Daemon
07/27/2006 12:05PM
Re: Why does this query filesort?  
1,841
KimSeong Loh
08/01/2006 11:14PM
optimize dynamic sql  
3,558
Bhupesh Tripathi
07/28/2006 03:33AM
query of tables with a longblob  
2,559
paul obyrne
06/23/2006 11:44AM
Re: query of tables with a longblob  
1,742
Nathan Cheng
07/25/2006 01:26PM
Optimizing (a=b and c=d) OR (e=f and g=h)  
2,683
a.h.s. boy
07/20/2006 12:07PM
Re: Optimizing (a=b and c=d) OR (e=f and g=h)  
1,791
KimSeong Loh
07/20/2006 05:29PM
Re: Optimizing (a=b and c=d) OR (e=f and g=h)  
1,760
a.h.s. boy
07/20/2006 10:09PM
With vs Without Primary Key in a particular case  
6,999
Martin Feng
07/19/2006 11:02PM
Re: With vs Without Primary Key in a particular case  
2,862
KimSeong Loh
07/20/2006 05:35PM
SELECT DISTINCT vs UNIQUE KEY  
10,335
Martin Feng
07/19/2006 06:11AM
LEFT JOIN problem  
3,440
Steve Jordi
07/17/2006 07:13AM
Re: LEFT JOIN problem  
1,839
Peter Brawley
07/17/2006 08:07AM
Re: LEFT JOIN problem  
1,790
Steve Jordi
07/17/2006 09:30AM
Re: LEFT JOIN problem  
1,796
Peter Brawley
07/17/2006 12:03PM
Re: LEFT JOIN problem  
1,727
Steve Jordi
07/17/2006 10:23PM
(How) are subqueries optimized involving the same table?  
2,712
Jakobus Dornier
07/13/2006 08:02AM
Re: (How) are subqueries optimized involving the same table?  
1,961
Jakobus Dornier
07/13/2006 08:20AM
Re: (How) are subqueries optimized involving the same table?  
1,797
Bob Field
07/13/2006 08:33AM
Re: (How) are subqueries optimized involving the same table?  
1,994
Jakobus Dornier
07/13/2006 08:40AM
Re: (How) are subqueries optimized involving the same table?  
1,815
Bob Field
07/13/2006 08:53AM
Re: (How) are subqueries optimized involving the same table?  
1,744
Jakobus Dornier
07/13/2006 08:57AM
Re: (How) are subqueries optimized involving the same table?  
1,970
Bob Field
07/13/2006 08:12AM
How to get some documents or articles on the query optimization of MySQL????  
2,475
Hui Sun
07/10/2006 07:10AM
Re: How to get some documents or articles on the query optimization of MySQL????  
1,814
KimSeong Loh
07/10/2006 05:12PM
min() vs limit optimization  
5,554
Paul Medynski
07/02/2006 05:34PM
Re: min() vs limit optimization  
2,235
Apachez
07/02/2006 08:26PM
Re: min() vs limit optimization  
2,170
Paul Medynski
07/03/2006 05:22PM
Re: min() vs limit optimization  
2,329
Apachez
07/04/2006 06:51AM
Slow Union Query Opimization. Need help.  
6,326
Roland Meier
06/29/2006 12:50AM
Re: Slow Union Query Opimization. Need help.  
2,589
Jay Pipes
06/29/2006 04:53PM
Re: Slow Union Query Opimization. Need help.  
2,961
Roland Meier
06/30/2006 02:30AM
Re: Slow Union Query Opimization. Need help.  
3,212
Anthony Willard
06/29/2006 08:24AM
querying time is too high  
2,911
trinath somanchi
06/27/2006 07:31AM
Re: querying time is too high  
1,930
Anthony Willard
06/29/2006 08:52AM
Re: querying time is too high  
1,924
trinath somanchi
06/29/2006 12:48AM
Re: querying time is too high  
1,972
Jim Daemon
06/28/2006 10:00AM
Boolean search and 99% cpu  
2,447
Taiyo Rai
06/27/2006 07:17AM
Joining several multi-to-multi tables  
3,677
adambrill1986
06/20/2006 11:59AM
Re: Joining several multi-to-multi tables  
2,076
adambrill1986
06/23/2006 06:58AM
Re: Joining several multi-to-multi tables  
1,996
adambrill1986
06/20/2006 12:21PM
Re: Joining several multi-to-multi tables  
1,964
adambrill1986
06/20/2006 01:44PM
Re: Joining several multi-to-multi tables  
1,933
Bill Karwin
06/20/2006 04:23PM
Re: Joining several multi-to-multi tables  
1,928
KimSeong Loh
06/20/2006 06:02PM
Re: Joining several multi-to-multi tables  
1,912
Bill Karwin
06/20/2006 01:02PM
Re: Joining several multi-to-multi tables  
1,915
Bill Karwin
06/20/2006 12:14PM
no optimization?  
2,555
Uwe
05/22/2006 05:47AM
Re: no optimization?  
1,878
Apachez
06/18/2006 08:50PM
Re: no optimization?  
1,848
Uwe
06/21/2006 10:40AM
Regression: Query optimized in 4.1, not at all in 5.0, why?  
2,577
William Shubert
06/21/2006 12:35AM
Re: Regression: Query optimized in 4.1, not at all in 5.0, why?  
1,799
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  
5,049
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  
2,199
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  
2,333
Ijaz Rashid
06/20/2006 07:18AM
Why does this delete statement take so long?  
5,146
Jim Daemon
06/15/2006 02:11PM
Re: Why does this delete statement take so long?  
2,104
Bob Field
06/15/2006 03:56PM
Re: Why does this delete statement take so long?  
2,031
Jim Daemon
06/15/2006 04:16PM
Why isn't the index being used?  
3,400
Jim Daemon
06/12/2006 06:11PM
Re: Why isn't the index being used?  
1,980
Jim Daemon
06/13/2006 04:03PM
Re: Why isn't the index being used?  
1,976
Jim Daemon
06/13/2006 09:54AM
Re: Why isn't the index being used?  
1,930
KimSeong Loh
06/13/2006 10:34AM
Re: Why isn't the index being used?  
1,962
Bob Field
06/13/2006 09:11AM
Re: Why isn't the index being used?  
2,178
Jim Daemon
06/13/2006 08:41AM
Re: Why isn't the index being used?  
1,931
Bob Field
06/12/2006 06:41PM
How to avoid temporary and filesort?  
5,972
Jim Daemon
06/13/2006 08:49AM
Re: How to avoid temporary and filesort?  
3,208
KimSeong Loh
06/13/2006 09:06AM
Re: How to avoid temporary and filesort?  
3,392
Jim Daemon
06/13/2006 09:39AM
Re: How to avoid temporary and filesort?  
2,792
KimSeong Loh
06/13/2006 10:31AM
How to avoid filesort  
12,640
Jim Daemon
06/11/2006 06:50PM
Re: How to avoid filesort  
6,218
Jim Daemon
06/12/2006 01:30PM
Re: How to avoid filesort  
6,948
KimSeong Loh
06/12/2006 08:40AM
Re: How to avoid filesort  
6,186
Jim Daemon
06/12/2006 09:10AM
Help with optimizing GROUP BY query  
5,112
lasse
06/12/2006 07:16AM
Re: Help with optimizing GROUP BY query  
2,570
KimSeong Loh
06/12/2006 08:37AM
Re: Help with optimizing GROUP BY query  
2,475
lasse
06/12/2006 10:54AM
Re: Help with optimizing GROUP BY query  
2,486
KimSeong Loh
06/12/2006 01:01PM
Why is FULLTEXT index not used with a LEFT JOIN?  
4,033
Tad Woods
06/11/2006 10:29AM
Re: Why is FULLTEXT index not used with a LEFT JOIN?  
2,198
Tad Woods
06/11/2006 03:39PM
fast way to delete records?  
14,266
ylu
05/23/2006 03:35PM
Re: fast way to delete records?  
6,169
KimSeong Loh
05/24/2006 06:43PM
Re: fast way to delete records?  
4,518
tri.truong
06/08/2006 12:30PM
Re: fast way to delete records?  
6,762
Anthony Willard
05/24/2006 07:29AM
Will sort help optimizing this query?  
2,899
binglew
06/08/2006 11:27AM
count(*) versus mysql_num_rows  
28,239
nachomonterde
11/21/2005 03:54PM
Re: count(*) versus mysql_num_rows  
5,662
Rob Blick
06/08/2006 09:41AM
Re: count(*) versus mysql_num_rows  
8,104
Paul Loy
06/02/2006 04:13AM
Re: count(*) versus mysql_num_rows  
9,149
Alexandru Cristescu
11/24/2005 05:55AM
Re: count(*) versus mysql_num_rows  
7,498
Jacky Shu
11/24/2005 09:18AM
Selecting a proper table stucture  
3,279
Daniel Misio
06/07/2006 04:07AM
Re: Selecting a proper table stucture  
2,013
Anthony Willard
06/07/2006 09:47AM
Slow Database  
9,229
Dominic Hayhoe
05/31/2006 11:29AM
Re: Slow Database  
3,427
Dominic Hayhoe
06/01/2006 04:14AM
Re: Slow Database  
2,595
KimSeong Loh
06/01/2006 06:40PM
Re: Slow Database  
2,989
Dominic Hayhoe
06/02/2006 02:17AM
Re: Slow Database  
2,830
KimSeong Loh
06/05/2006 10:37AM
Re: Slow Database  
2,684
KimSeong Loh
05/31/2006 07:43PM
Re: Slow Database  
2,640
Dominic Hayhoe
06/01/2006 12:19AM
Re: Slow Database  
3,555
Peter Brawley
05/31/2006 12:06PM
Re: Slow Database  
2,852
Dominic Hayhoe
05/31/2006 12:43PM
Help to optimize my query  
2,369
björn spiegel
06/04/2006 09:34AM
Optimizing query with multiple joins  
4,883
EM Ayllon
05/29/2006 05:07AM
Re: Optimizing query with multiple joins  
2,304
EM Ayllon
05/30/2006 07:15AM
Re: Optimizing query with multiple joins  
2,434
Peter Brawley
05/29/2006 08:36AM
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