MySQL Forums
Forum List  »  Optimizer & Parser
Announcements Last Post
•   MySQL Connector/NET 6.10.9 has been released 07/29/2019 10:27PM
•   MySQL Connector/J 5.1.48 GA has been released 07/29/2019 01:52PM
•   MySQL Cluster 7.3.26 has been released 07/23/2019 08:40AM
•   MySQL Cluster 7.4.25 has been released 07/23/2019 01:56AM
•   MySQL Cluster 7.5.15 has been released 07/23/2019 01:40AM

Advanced Search
New Topic
Pages:
« 1
...
14 15 16 17 18 »

Subject
Views
Written By
Posted
does MySQL support function index?  
4,652
lei liang
09/21/2006 06:56PM
Re: does MySQL support function index?  
4,671
KimSeong Loh
09/21/2006 10:14PM
index choose and analyze table  
2,992
Jens Schanz
09/11/2006 04:37AM
Re: index choose and analyze table  
2,360
Toa Sty
09/14/2006 08:25AM
Re: index choose and analyze table  
10,356
Toa Sty
09/14/2006 10:38AM
Re: index choose and analyze table  
3,040
Jens Schanz
09/19/2006 04:34AM
Two nearly equal querys, but very different performance  
2,612
Sven Markwart
09/12/2006 08:54AM
Re: Two nearly equal querys, but very different performance  
1,659
Toa Sty
09/12/2006 09:34AM
sometimes, mysql don't use an existing index  
5,881
Bart Peeters
09/04/2006 12:17PM
Re: sometimes, mysql don't use an existing index  
2,631
Toa Sty
09/11/2006 06:29AM
slow corelated subquery, not sure how to rewrite  
3,240
Tait Larson
09/01/2006 06:42PM
Re: slow corelated subquery, not sure how to rewrite  
1,860
Tait Larson
09/03/2006 12:00AM
Re: slow corelated subquery, not sure how to rewrite  
1,721
KimSeong Loh
09/10/2006 10:18PM
best way to create 'next' and 'previous' text  
2,386
Johannes Fosseus
09/10/2006 01:53AM
Re: best way to create 'next' and 'previous' text  
1,468
Bob Field
09/10/2006 09:01AM
Best index for my table  
2,958
Johannes Fosseus
09/09/2006 01:01AM
Re: Best index for my table  
1,679
Bob Field
09/09/2006 02:01PM
Re: Best index for my table  
1,622
Johannes Fosseus
09/10/2006 12:37AM
Why do mysql use temporary and filesort here?  
3,065
Johannes Fosseus
09/08/2006 04:50AM
Re: Why do mysql use temporary and filesort here?  
2,026
Björn Steinbrink
09/08/2006 06:36AM
slow selects  
2,511
Danie Van der Walt
08/31/2006 08:02AM
Re: slow selects  
1,737
Toa Sty
08/31/2006 08:43AM
Re: slow selects  
1,738
Danie Van der Walt
08/31/2006 09:06AM
Re: slow selects  
1,738
Toa Sty
09/01/2006 03:04AM
Re: slow selects  
1,706
Danie Van der Walt
09/01/2006 04:17AM
Re: slow selects  
1,917
Toa Sty
09/01/2006 04:50AM
Re: slow selects  
1,712
Danie Van der Walt
09/01/2006 07:24AM
Re: slow selects  
1,727
Toa Sty
09/01/2006 08:16AM
Re: slow selects  
1,741
Danie Van der Walt
09/02/2006 12:52PM
Query Optimization  
2,453
Will Buckner
08/21/2006 11:05AM
Re: Query Optimization  
1,564
Bill Karwin
08/21/2006 06:44PM
Re: Query Optimization  
1,596
Will Buckner
08/27/2006 11:50PM
Re: Query Optimization  
1,685
Anthony Willard
08/28/2006 07:33AM
Optimizing a UNION Query  
5,853
Charles Salvia
08/23/2006 08:16PM
Re: Optimizing a UNION Query  
2,523
Toa Sty
08/24/2006 05:28AM
Re: Optimizing a UNION Query  
2,575
Charles Salvia
08/24/2006 12:12PM
Re: Optimizing a UNION Query  
5,094
Toa Sty
08/25/2006 06:14AM
Re: Optimizing a UNION Query  
2,517
Toa Sty
08/24/2006 04:59AM
Really need help with optimization  
2,698
Anders Bergman
08/22/2006 01:43PM
Re: Really need help with optimization  
1,656
Toa Sty
08/23/2006 12:50AM
Re: Really need help with optimization  
1,758
Anders Bergman
08/23/2006 01:24PM
Re: Really need help with optimization  
1,671
Toa Sty
08/24/2006 04:53AM
Re: Really need help with optimization  
1,650
Anders Bergman
08/22/2006 01:46PM
Left Join Problem  
2,394
Clodelio Delfino
08/22/2006 11:30PM
Re: Left Join Problem  
1,649
Bob Field
08/23/2006 09:00AM
Re: Left Join Problem  
1,656
Clodelio Delfino
08/23/2006 06:53PM
Re: Left Join Problem  
1,600
Bob Field
08/23/2006 07:12PM
Re: Left Join Problem  
1,767
Clodelio Delfino
08/23/2006 11:01PM
optimizing the query.  
2,345
ronak desai
07/26/2006 07:13AM
Re: optimizing the query.  
1,695
Yogesh Salvi
08/22/2006 12:37PM
Re: optimizing the query.  
1,702
Toa Sty
08/04/2006 04:50AM
Re: optimizing the query.  
1,644
KimSeong Loh
07/27/2006 12:13AM
cant get LEFT JOIN to work properly when ORDER'ing BY  
2,063
Liutauras
08/20/2006 02:11AM
Re: cant get LEFT JOIN to work properly when ORDER'ing BY  
1,530
Liutauras
08/22/2006 03:26AM
cant get LEFT JOIN to work properly when ORDER'ing BY  
6,113
Liutauras
08/20/2006 01:36AM
Re: cant get LEFT JOIN to work properly when ORDER'ing BY  
8,204
Toa Sty
08/21/2006 07:25AM
Re: cant get LEFT JOIN to work properly when ORDER'ing BY  
3,918
Toa Sty
08/21/2006 07:55AM
Re: cant get LEFT JOIN to work properly when ORDER'ing BY  
2,870
Liutauras
08/22/2006 03:25AM
Force Table Selection Order in JOIN Statement?  
9,726
Frank Osterberg
08/21/2006 02:39AM
Re: Force Table Selection Order in JOIN Statement?  
9,350
Toa Sty
08/21/2006 06:24AM
ORDER BY RAND() taking too much time  
9,684
Yogesh Salvi
04/29/2006 05:30AM
Re: ORDER BY RAND() taking too much time  
3,598
Erin ONeill
06/08/2006 10:38AM
Re: ORDER BY RAND() taking too much time  
2,449
Yogesh Salvi
05/11/2006 04:25AM
Re: ORDER BY RAND() taking too much time  
2,940
Yogesh Salvi
05/03/2006 01:51AM
Re: ORDER BY RAND() taking too much time  
3,210
Ravenous Bugblatter Beast
08/15/2006 05:13PM
Re: ORDER BY RAND() taking too much time  
2,750
Yogesh Salvi
05/03/2006 02:11AM
Re: ORDER BY RAND() taking too much time  
3,909
Yogesh Salvi
05/02/2006 08:44AM
Re: ORDER BY RAND() taking too much time  
3,354
Björn Steinbrink
05/02/2006 02:24PM
Re: ORDER BY RAND() taking too much time  
3,589
Sebastien Caisse
05/01/2006 08:49AM
How to create on-the-fly index on derived table?  
11,113
Nathan Cheng
07/25/2006 01:05PM
Re: How to create on-the-fly index on derived table?  
6,585
Nathan Cheng
08/12/2006 03:04PM
difference performance of simple SELECT (on large tables) between MySql running on Windows XP and on Ubuntu  
2,583
Ed Stone
08/09/2006 03:48PM
EXISTS() optimization  
19,207
Rob Blick
06/07/2006 10:00AM
Re: EXISTS() optimization  
6,288
bill stamp
07/25/2006 07:54AM
Re: EXISTS() optimization  
5,493
Nathan Cheng
07/25/2006 01:13PM
Re: EXISTS() optimization  
5,035
Toa Sty
08/04/2006 04:45AM
Too many rows being read  
2,640
preston
08/02/2006 02:02PM
Re: Too many rows being read  
1,623
Bob Field
08/02/2006 02:18PM
Why does this query filesort?  
2,531
Jim Daemon
07/27/2006 12:05PM
Re: Why does this query filesort?  
1,694
KimSeong Loh
08/01/2006 11:14PM
optimize dynamic sql  
3,177
Bhupesh Tripathi
07/28/2006 03:33AM
query of tables with a longblob  
2,268
paul obyrne
06/23/2006 11:44AM
Re: query of tables with a longblob  
1,577
Nathan Cheng
07/25/2006 01:26PM
Optimizing (a=b and c=d) OR (e=f and g=h)  
2,420
a.h.s. boy
07/20/2006 12:07PM
Re: Optimizing (a=b and c=d) OR (e=f and g=h)  
1,619
KimSeong Loh
07/20/2006 05:29PM
Re: Optimizing (a=b and c=d) OR (e=f and g=h)  
1,624
a.h.s. boy
07/20/2006 10:09PM
With vs Without Primary Key in a particular case  
6,638
Martin Feng
07/19/2006 11:02PM
Re: With vs Without Primary Key in a particular case  
2,679
KimSeong Loh
07/20/2006 05:35PM
SELECT DISTINCT vs UNIQUE KEY  
9,630
Martin Feng
07/19/2006 06:11AM
LEFT JOIN problem  
3,152
Steve Jordi
07/17/2006 07:13AM
Re: LEFT JOIN problem  
1,685
Peter Brawley
07/17/2006 08:07AM
Re: LEFT JOIN problem  
1,639
Steve Jordi
07/17/2006 09:30AM
Re: LEFT JOIN problem  
1,649
Peter Brawley
07/17/2006 12:03PM
Re: LEFT JOIN problem  
1,585
Steve Jordi
07/17/2006 10:23PM
(How) are subqueries optimized involving the same table?  
2,456
Jakobus Dornier
07/13/2006 08:02AM
Re: (How) are subqueries optimized involving the same table?  
1,772
Jakobus Dornier
07/13/2006 08:20AM
Re: (How) are subqueries optimized involving the same table?  
1,669
Bob Field
07/13/2006 08:33AM
Re: (How) are subqueries optimized involving the same table?  
1,842
Jakobus Dornier
07/13/2006 08:40AM
Re: (How) are subqueries optimized involving the same table?  
1,672
Bob Field
07/13/2006 08:53AM
Re: (How) are subqueries optimized involving the same table?  
1,577
Jakobus Dornier
07/13/2006 08:57AM
Re: (How) are subqueries optimized involving the same table?  
1,806
Bob Field
07/13/2006 08:12AM
How to get some documents or articles on the query optimization of MySQL????  
2,264
Hui Sun
07/10/2006 07:10AM
Re: How to get some documents or articles on the query optimization of MySQL????  
1,670
KimSeong Loh
07/10/2006 05:12PM
min() vs limit optimization  
5,179
Paul Medynski
07/02/2006 05:34PM
Re: min() vs limit optimization  
2,055
Apachez
07/02/2006 08:26PM
Re: min() vs limit optimization  
2,013
Paul Medynski
07/03/2006 05:22PM
Re: min() vs limit optimization  
2,183
Apachez
07/04/2006 06:51AM
Slow Union Query Opimization. Need help.  
6,001
Roland Meier
06/29/2006 12:50AM
Re: Slow Union Query Opimization. Need help.  
2,431
Jay Pipes
06/29/2006 04:53PM
Re: Slow Union Query Opimization. Need help.  
2,729
Roland Meier
06/30/2006 02:30AM
Re: Slow Union Query Opimization. Need help.  
2,966
Anthony Willard
06/29/2006 08:24AM
querying time is too high  
2,657
trinath somanchi
06/27/2006 07:31AM
Re: querying time is too high  
1,764
Anthony Willard
06/29/2006 08:52AM
Re: querying time is too high  
1,700
trinath somanchi
06/29/2006 12:48AM
Re: querying time is too high  
1,802
Jim Daemon
06/28/2006 10:00AM
Boolean search and 99% cpu  
2,165
Taiyo Rai
06/27/2006 07:17AM
Joining several multi-to-multi tables  
3,311
adambrill1986
06/20/2006 11:59AM
Re: Joining several multi-to-multi tables  
1,891
adambrill1986
06/23/2006 06:58AM
Re: Joining several multi-to-multi tables  
1,742
adambrill1986
06/20/2006 12:21PM
Re: Joining several multi-to-multi tables  
1,780
adambrill1986
06/20/2006 01:44PM
Re: Joining several multi-to-multi tables  
1,728
Bill Karwin
06/20/2006 04:23PM
Re: Joining several multi-to-multi tables  
1,703
KimSeong Loh
06/20/2006 06:02PM
Re: Joining several multi-to-multi tables  
1,749
Bill Karwin
06/20/2006 01:02PM
Re: Joining several multi-to-multi tables  
1,732
Bill Karwin
06/20/2006 12:14PM
no optimization?  
2,248
Uwe
05/22/2006 05:47AM
Re: no optimization?  
1,721
Apachez
06/18/2006 08:50PM
Re: no optimization?  
1,672
Uwe
06/21/2006 10:40AM
Regression: Query optimized in 4.1, not at all in 5.0, why?  
2,275
William Shubert
06/21/2006 12:35AM
Re: Regression: Query optimized in 4.1, not at all in 5.0, why?  
1,629
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  
4,359
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  
1,995
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  
2,081
Ijaz Rashid
06/20/2006 07:18AM
Why does this delete statement take so long?  
4,755
Jim Daemon
06/15/2006 02:11PM
Re: Why does this delete statement take so long?  
1,920
Bob Field
06/15/2006 03:56PM
Re: Why does this delete statement take so long?  
1,847
Jim Daemon
06/15/2006 04:16PM
Why isn't the index being used?  
3,072
Jim Daemon
06/12/2006 06:11PM
Re: Why isn't the index being used?  
1,827
Jim Daemon
06/13/2006 04:03PM
Re: Why isn't the index being used?  
1,823
Jim Daemon
06/13/2006 09:54AM
Re: Why isn't the index being used?  
1,801
KimSeong Loh
06/13/2006 10:34AM
Re: Why isn't the index being used?  
1,798
Bob Field
06/13/2006 09:11AM
Re: Why isn't the index being used?  
2,003
Jim Daemon
06/13/2006 08:41AM
Re: Why isn't the index being used?  
1,769
Bob Field
06/12/2006 06:41PM
How to avoid temporary and filesort?  
5,606
Jim Daemon
06/13/2006 08:49AM
Re: How to avoid temporary and filesort?  
3,048
KimSeong Loh
06/13/2006 09:06AM
Re: How to avoid temporary and filesort?  
3,180
Jim Daemon
06/13/2006 09:39AM
Re: How to avoid temporary and filesort?  
2,627
KimSeong Loh
06/13/2006 10:31AM
How to avoid filesort  
12,265
Jim Daemon
06/11/2006 06:50PM
Re: How to avoid filesort  
6,012
Jim Daemon
06/12/2006 01:30PM
Re: How to avoid filesort  
6,764
KimSeong Loh
06/12/2006 08:40AM
Re: How to avoid filesort  
5,995
Jim Daemon
06/12/2006 09:10AM
Help with optimizing GROUP BY query  
4,747
lasse
06/12/2006 07:16AM
Re: Help with optimizing GROUP BY query  
2,403
KimSeong Loh
06/12/2006 08:37AM
Re: Help with optimizing GROUP BY query  
2,298
lasse
06/12/2006 10:54AM
Re: Help with optimizing GROUP BY query  
2,306
KimSeong Loh
06/12/2006 01:01PM
Why is FULLTEXT index not used with a LEFT JOIN?  
3,729
Tad Woods
06/11/2006 10:29AM
Re: Why is FULLTEXT index not used with a LEFT JOIN?  
2,004
Tad Woods
06/11/2006 03:39PM
fast way to delete records?  
13,702
ylu
05/23/2006 03:35PM
Re: fast way to delete records?  
5,880
KimSeong Loh
05/24/2006 06:43PM
Re: fast way to delete records?  
4,323
tri.truong
06/08/2006 12:30PM
Re: fast way to delete records?  
6,394
Anthony Willard
05/24/2006 07:29AM
Will sort help optimizing this query?  
2,567
binglew
06/08/2006 11:27AM
count(*) versus mysql_num_rows  
27,478
nachomonterde
11/21/2005 03:54PM
Re: count(*) versus mysql_num_rows  
5,353
Rob Blick
06/08/2006 09:41AM
Re: count(*) versus mysql_num_rows  
7,773
Paul Loy
06/02/2006 04:13AM
Re: count(*) versus mysql_num_rows  
8,864
Alexandru Cristescu
11/24/2005 05:55AM
Re: count(*) versus mysql_num_rows  
7,228
Jacky Shu
11/24/2005 09:18AM
Selecting a proper table stucture  
2,851
Daniel Misio
06/07/2006 04:07AM
Re: Selecting a proper table stucture  
1,841
Anthony Willard
06/07/2006 09:47AM
Slow Database  
8,846
Dominic Hayhoe
05/31/2006 11:29AM
Re: Slow Database  
3,231
Dominic Hayhoe
06/01/2006 04:14AM
Re: Slow Database  
2,441
KimSeong Loh
06/01/2006 06:40PM
Re: Slow Database  
2,801
Dominic Hayhoe
06/02/2006 02:17AM
Re: Slow Database  
2,627
KimSeong Loh
06/05/2006 10:37AM
Re: Slow Database  
2,538
KimSeong Loh
05/31/2006 07:43PM
Re: Slow Database  
2,491
Dominic Hayhoe
06/01/2006 12:19AM
Re: Slow Database  
3,358
Peter Brawley
05/31/2006 12:06PM
Re: Slow Database  
2,664
Dominic Hayhoe
05/31/2006 12:43PM
Pages:
« 1
...
14 15 16 17 18 »

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.