MySQL Forums
Forum List  »  Optimizer & Parser

Advanced Search
New Topic
Pages:
« 1
...
15 16 17 18 19 »

Subject
Views
Written By
Posted
Two nearly equal querys, but very different performance  
3,161
Sven Markwart
09/12/2006 08:54AM
Re: Two nearly equal querys, but very different performance  
1,932
Toa Sty
09/12/2006 09:34AM
sometimes, mysql don't use an existing index  
6,424
Bart Peeters
09/04/2006 12:17PM
Re: sometimes, mysql don't use an existing index  
2,882
Toa Sty
09/11/2006 06:29AM
slow corelated subquery, not sure how to rewrite  
3,685
Tait Larson
09/01/2006 06:42PM
Re: slow corelated subquery, not sure how to rewrite  
2,088
Tait Larson
09/03/2006 12:00AM
Re: slow corelated subquery, not sure how to rewrite  
1,938
KimSeong Loh
09/10/2006 10:18PM
best way to create 'next' and 'previous' text  
2,741
Johannes Fosseus
09/10/2006 01:53AM
Re: best way to create 'next' and 'previous' text  
1,684
Bob Field
09/10/2006 09:01AM
Best index for my table  
3,354
Johannes Fosseus
09/09/2006 01:01AM
Re: Best index for my table  
1,881
Bob Field
09/09/2006 02:01PM
Re: Best index for my table  
1,830
Johannes Fosseus
09/10/2006 12:37AM
Why do mysql use temporary and filesort here?  
3,501
Johannes Fosseus
09/08/2006 04:50AM
Re: Why do mysql use temporary and filesort here?  
2,274
Björn Steinbrink
09/08/2006 06:36AM
slow selects  
2,916
Danie Van der Walt
08/31/2006 08:02AM
Re: slow selects  
1,955
Toa Sty
08/31/2006 08:43AM
Re: slow selects  
1,949
Danie Van der Walt
08/31/2006 09:06AM
Re: slow selects  
1,955
Toa Sty
09/01/2006 03:04AM
Re: slow selects  
1,920
Danie Van der Walt
09/01/2006 04:17AM
Re: slow selects  
2,190
Toa Sty
09/01/2006 04:50AM
Re: slow selects  
1,919
Danie Van der Walt
09/01/2006 07:24AM
Re: slow selects  
1,961
Toa Sty
09/01/2006 08:16AM
Re: slow selects  
1,957
Danie Van der Walt
09/02/2006 12:52PM
Query Optimization  
2,825
Will Buckner
08/21/2006 11:05AM
Re: Query Optimization  
1,779
Bill Karwin
08/21/2006 06:44PM
Re: Query Optimization  
1,789
Will Buckner
08/27/2006 11:50PM
Re: Query Optimization  
1,928
Anthony Willard
08/28/2006 07:33AM
Optimizing a UNION Query  
6,356
Charles Salvia
08/23/2006 08:16PM
Re: Optimizing a UNION Query  
2,758
Toa Sty
08/24/2006 05:28AM
Re: Optimizing a UNION Query  
2,802
Charles Salvia
08/24/2006 12:12PM
Re: Optimizing a UNION Query  
5,501
Toa Sty
08/25/2006 06:14AM
Re: Optimizing a UNION Query  
2,747
Toa Sty
08/24/2006 04:59AM
Really need help with optimization  
3,102
Anders Bergman
08/22/2006 01:43PM
Re: Really need help with optimization  
1,883
Toa Sty
08/23/2006 12:50AM
Re: Really need help with optimization  
1,960
Anders Bergman
08/23/2006 01:24PM
Re: Really need help with optimization  
1,904
Toa Sty
08/24/2006 04:53AM
Re: Really need help with optimization  
1,928
Anders Bergman
08/22/2006 01:46PM
Left Join Problem  
2,750
Clodelio Delfino
08/22/2006 11:30PM
Re: Left Join Problem  
1,852
Bob Field
08/23/2006 09:00AM
Re: Left Join Problem  
1,888
Clodelio Delfino
08/23/2006 06:53PM
Re: Left Join Problem  
1,776
Bob Field
08/23/2006 07:12PM
Re: Left Join Problem  
1,967
Clodelio Delfino
08/23/2006 11:01PM
optimizing the query.  
2,758
ronak desai
07/26/2006 07:13AM
Re: optimizing the query.  
1,933
Yogesh Salvi
08/22/2006 12:37PM
Re: optimizing the query.  
1,903
Toa Sty
08/04/2006 04:50AM
Re: optimizing the query.  
1,838
KimSeong Loh
07/27/2006 12:13AM
cant get LEFT JOIN to work properly when ORDER'ing BY  
2,467
Liutauras
08/20/2006 02:11AM
Re: cant get LEFT JOIN to work properly when ORDER'ing BY  
1,733
Liutauras
08/22/2006 03:26AM
cant get LEFT JOIN to work properly when ORDER'ing BY  
6,563
Liutauras
08/20/2006 01:36AM
Re: cant get LEFT JOIN to work properly when ORDER'ing BY  
8,534
Toa Sty
08/21/2006 07:25AM
Re: cant get LEFT JOIN to work properly when ORDER'ing BY  
4,158
Toa Sty
08/21/2006 07:55AM
Re: cant get LEFT JOIN to work properly when ORDER'ing BY  
3,061
Liutauras
08/22/2006 03:25AM
Force Table Selection Order in JOIN Statement?  
10,933
Frank Osterberg
08/21/2006 02:39AM
Re: Force Table Selection Order in JOIN Statement?  
9,802
Toa Sty
08/21/2006 06:24AM
ORDER BY RAND() taking too much time  
10,433
Yogesh Salvi
04/29/2006 05:30AM
Re: ORDER BY RAND() taking too much time  
3,906
Erin ONeill
06/08/2006 10:38AM
Re: ORDER BY RAND() taking too much time  
2,706
Yogesh Salvi
05/11/2006 04:25AM
Re: ORDER BY RAND() taking too much time  
3,214
Yogesh Salvi
05/03/2006 01:51AM
Re: ORDER BY RAND() taking too much time  
3,514
Ravenous Bugblatter Beast
08/15/2006 05:13PM
Re: ORDER BY RAND() taking too much time  
3,038
Yogesh Salvi
05/03/2006 02:11AM
Re: ORDER BY RAND() taking too much time  
4,200
Yogesh Salvi
05/02/2006 08:44AM
Re: ORDER BY RAND() taking too much time  
3,637
Björn Steinbrink
05/02/2006 02:24PM
Re: ORDER BY RAND() taking too much time  
3,890
Sebastien Caisse
05/01/2006 08:49AM
How to create on-the-fly index on derived table?  
12,771
Nathan Cheng
07/25/2006 01:05PM
Re: How to create on-the-fly index on derived table?  
7,498
Nathan Cheng
08/12/2006 03:04PM
difference performance of simple SELECT (on large tables) between MySql running on Windows XP and on Ubuntu  
3,048
Ed Stone
08/09/2006 03:48PM
EXISTS() optimization  
19,856
Rob Blick
06/07/2006 10:00AM
Re: EXISTS() optimization  
6,740
bill stamp
07/25/2006 07:54AM
Re: EXISTS() optimization  
5,718
Nathan Cheng
07/25/2006 01:13PM
Re: EXISTS() optimization  
5,353
Toa Sty
08/04/2006 04:45AM
Too many rows being read  
3,074
preston
08/02/2006 02:02PM
Re: Too many rows being read  
1,849
Bob Field
08/02/2006 02:18PM
Why does this query filesort?  
2,912
Jim Daemon
07/27/2006 12:05PM
Re: Why does this query filesort?  
1,905
KimSeong Loh
08/01/2006 11:14PM
optimize dynamic sql  
3,691
Bhupesh Tripathi
07/28/2006 03:33AM
query of tables with a longblob  
2,677
paul obyrne
06/23/2006 11:44AM
Re: query of tables with a longblob  
1,810
Nathan Cheng
07/25/2006 01:26PM
Optimizing (a=b and c=d) OR (e=f and g=h)  
2,814
a.h.s. boy
07/20/2006 12:07PM
Re: Optimizing (a=b and c=d) OR (e=f and g=h)  
1,870
KimSeong Loh
07/20/2006 05:29PM
Re: Optimizing (a=b and c=d) OR (e=f and g=h)  
1,831
a.h.s. boy
07/20/2006 10:09PM
With vs Without Primary Key in a particular case  
7,157
Martin Feng
07/19/2006 11:02PM
Re: With vs Without Primary Key in a particular case  
2,936
KimSeong Loh
07/20/2006 05:35PM
SELECT DISTINCT vs UNIQUE KEY  
10,506
Martin Feng
07/19/2006 06:11AM
LEFT JOIN problem  
3,571
Steve Jordi
07/17/2006 07:13AM
Re: LEFT JOIN problem  
1,899
Peter Brawley
07/17/2006 08:07AM
Re: LEFT JOIN problem  
1,853
Steve Jordi
07/17/2006 09:30AM
Re: LEFT JOIN problem  
1,863
Peter Brawley
07/17/2006 12:03PM
Re: LEFT JOIN problem  
1,785
Steve Jordi
07/17/2006 10:23PM
(How) are subqueries optimized involving the same table?  
2,861
Jakobus Dornier
07/13/2006 08:02AM
Re: (How) are subqueries optimized involving the same table?  
2,042
Jakobus Dornier
07/13/2006 08:20AM
Re: (How) are subqueries optimized involving the same table?  
1,869
Bob Field
07/13/2006 08:33AM
Re: (How) are subqueries optimized involving the same table?  
2,065
Jakobus Dornier
07/13/2006 08:40AM
Re: (How) are subqueries optimized involving the same table?  
1,886
Bob Field
07/13/2006 08:53AM
Re: (How) are subqueries optimized involving the same table?  
1,826
Jakobus Dornier
07/13/2006 08:57AM
Re: (How) are subqueries optimized involving the same table?  
2,046
Bob Field
07/13/2006 08:12AM
How to get some documents or articles on the query optimization of MySQL????  
2,609
Hui Sun
07/10/2006 07:10AM
Re: How to get some documents or articles on the query optimization of MySQL????  
1,879
KimSeong Loh
07/10/2006 05:12PM
min() vs limit optimization  
5,721
Paul Medynski
07/02/2006 05:34PM
Re: min() vs limit optimization  
2,292
Apachez
07/02/2006 08:26PM
Re: min() vs limit optimization  
2,240
Paul Medynski
07/03/2006 05:22PM
Re: min() vs limit optimization  
2,403
Apachez
07/04/2006 06:51AM
Slow Union Query Opimization. Need help.  
6,476
Roland Meier
06/29/2006 12:50AM
Re: Slow Union Query Opimization. Need help.  
2,662
Jay Pipes
06/29/2006 04:53PM
Re: Slow Union Query Opimization. Need help.  
3,043
Roland Meier
06/30/2006 02:30AM
Re: Slow Union Query Opimization. Need help.  
3,294
Anthony Willard
06/29/2006 08:24AM
querying time is too high  
3,044
trinath somanchi
06/27/2006 07:31AM
Re: querying time is too high  
1,995
Anthony Willard
06/29/2006 08:52AM
Re: querying time is too high  
2,013
trinath somanchi
06/29/2006 12:48AM
Re: querying time is too high  
2,055
Jim Daemon
06/28/2006 10:00AM
Boolean search and 99% cpu  
2,607
Taiyo Rai
06/27/2006 07:17AM
Joining several multi-to-multi tables  
3,830
adambrill1986
06/20/2006 11:59AM
Re: Joining several multi-to-multi tables  
2,145
adambrill1986
06/23/2006 06:58AM
Re: Joining several multi-to-multi tables  
2,054
adambrill1986
06/20/2006 12:21PM
Re: Joining several multi-to-multi tables  
2,025
adambrill1986
06/20/2006 01:44PM
Re: Joining several multi-to-multi tables  
2,008
Bill Karwin
06/20/2006 04:23PM
Re: Joining several multi-to-multi tables  
1,998
KimSeong Loh
06/20/2006 06:02PM
Re: Joining several multi-to-multi tables  
1,991
Bill Karwin
06/20/2006 01:02PM
Re: Joining several multi-to-multi tables  
1,985
Bill Karwin
06/20/2006 12:14PM
no optimization?  
2,698
Uwe
05/22/2006 05:47AM
Re: no optimization?  
1,960
Apachez
06/18/2006 08:50PM
Re: no optimization?  
1,933
Uwe
06/21/2006 10:40AM
Regression: Query optimized in 4.1, not at all in 5.0, why?  
2,714
William Shubert
06/21/2006 12:35AM
Re: Regression: Query optimized in 4.1, not at all in 5.0, why?  
1,898
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  
5,223
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  
2,278
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  
2,407
Ijaz Rashid
06/20/2006 07:18AM
Why does this delete statement take so long?  
5,278
Jim Daemon
06/15/2006 02:11PM
Re: Why does this delete statement take so long?  
2,188
Bob Field
06/15/2006 03:56PM
Re: Why does this delete statement take so long?  
2,113
Jim Daemon
06/15/2006 04:16PM
Why isn't the index being used?  
3,548
Jim Daemon
06/12/2006 06:11PM
Re: Why isn't the index being used?  
2,069
Jim Daemon
06/13/2006 04:03PM
Re: Why isn't the index being used?  
2,069
Jim Daemon
06/13/2006 09:54AM
Re: Why isn't the index being used?  
1,997
KimSeong Loh
06/13/2006 10:34AM
Re: Why isn't the index being used?  
2,045
Bob Field
06/13/2006 09:11AM
Re: Why isn't the index being used?  
2,286
Jim Daemon
06/13/2006 08:41AM
Re: Why isn't the index being used?  
2,008
Bob Field
06/12/2006 06:41PM
How to avoid temporary and filesort?  
6,152
Jim Daemon
06/13/2006 08:49AM
Re: How to avoid temporary and filesort?  
3,289
KimSeong Loh
06/13/2006 09:06AM
Re: How to avoid temporary and filesort?  
3,491
Jim Daemon
06/13/2006 09:39AM
Re: How to avoid temporary and filesort?  
2,876
KimSeong Loh
06/13/2006 10:31AM
How to avoid filesort  
12,793
Jim Daemon
06/11/2006 06:50PM
Re: How to avoid filesort  
6,310
Jim Daemon
06/12/2006 01:30PM
Re: How to avoid filesort  
7,032
KimSeong Loh
06/12/2006 08:40AM
Re: How to avoid filesort  
6,284
Jim Daemon
06/12/2006 09:10AM
Help with optimizing GROUP BY query  
5,247
lasse
06/12/2006 07:16AM
Re: Help with optimizing GROUP BY query  
2,656
KimSeong Loh
06/12/2006 08:37AM
Re: Help with optimizing GROUP BY query  
2,554
lasse
06/12/2006 10:54AM
Re: Help with optimizing GROUP BY query  
2,566
KimSeong Loh
06/12/2006 01:01PM
Why is FULLTEXT index not used with a LEFT JOIN?  
4,219
Tad Woods
06/11/2006 10:29AM
Re: Why is FULLTEXT index not used with a LEFT JOIN?  
2,296
Tad Woods
06/11/2006 03:39PM
fast way to delete records?  
14,436
ylu
05/23/2006 03:35PM
Re: fast way to delete records?  
6,274
KimSeong Loh
05/24/2006 06:43PM
Re: fast way to delete records?  
4,613
tri.truong
06/08/2006 12:30PM
Re: fast way to delete records?  
6,874
Anthony Willard
05/24/2006 07:29AM
Will sort help optimizing this query?  
3,044
binglew
06/08/2006 11:27AM
count(*) versus mysql_num_rows  
28,491
nachomonterde
11/21/2005 03:54PM
Re: count(*) versus mysql_num_rows  
5,762
Rob Blick
06/08/2006 09:41AM
Re: count(*) versus mysql_num_rows  
8,220
Paul Loy
06/02/2006 04:13AM
Re: count(*) versus mysql_num_rows  
9,245
Alexandru Cristescu
11/24/2005 05:55AM
Re: count(*) versus mysql_num_rows  
7,606
Jacky Shu
11/24/2005 09:18AM
Selecting a proper table stucture  
3,442
Daniel Misio
06/07/2006 04:07AM
Re: Selecting a proper table stucture  
2,100
Anthony Willard
06/07/2006 09:47AM
Slow Database  
9,403
Dominic Hayhoe
05/31/2006 11:29AM
Re: Slow Database  
3,516
Dominic Hayhoe
06/01/2006 04:14AM
Re: Slow Database  
2,676
KimSeong Loh
06/01/2006 06:40PM
Re: Slow Database  
3,088
Dominic Hayhoe
06/02/2006 02:17AM
Re: Slow Database  
2,914
KimSeong Loh
06/05/2006 10:37AM
Re: Slow Database  
2,762
KimSeong Loh
05/31/2006 07:43PM
Re: Slow Database  
2,748
Dominic Hayhoe
06/01/2006 12:19AM
Re: Slow Database  
3,628
Peter Brawley
05/31/2006 12:06PM
Re: Slow Database  
2,936
Dominic Hayhoe
05/31/2006 12:43PM
Help to optimize my query  
2,507
björn spiegel
06/04/2006 09:34AM
Optimizing query with multiple joins  
5,029
EM Ayllon
05/29/2006 05:07AM
Re: Optimizing query with multiple joins  
2,397
EM Ayllon
05/30/2006 07:15AM
Re: Optimizing query with multiple joins  
2,506
Peter Brawley
05/29/2006 08:36AM
Pages:
« 1
...
15 16 17 18 19 »

Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does not necessarily represent the opinion of Oracle or any other party.