MySQL Forums
Forum List  »  Optimizer & Parser

Advanced Search
New Topic
Pages:
« 1 2 3 4 5
...
19 »

Subject
Views
Written By
Posted
foreign key creation in a huge database  
2,371
Raffael Vendrametto
03/05/2015 04:05PM
Please do NOT duplicate posts  
1,126
Peter Brawley
03/05/2015 05:42PM
Query Taking 2.5hrs on 5.6.20 version  
2,792
ch srinivas
03/04/2015 01:30AM
Re: Query Taking 2.5hrs on 5.6.20 version  
1,281
Peter Brawley
03/04/2015 12:15PM
Re: Query Taking 2.5hrs on 5.6.20 version  
1,203
Rick James
03/04/2015 08:18PM
Query optimisation advice  
2,482
Paul Feely
01/08/2015 11:02PM
Re: Query optimisation advice  
1,293
Rick James
01/10/2015 01:22AM
Re: Query optimisation advice  
1,219
Paul Feely
01/11/2015 05:50PM
Re: Query optimisation advice  
1,270
Rick James
01/12/2015 10:35PM
actual Size calculation of mysql table (engine innodb)  
2,435
Afaque Ahmad Siddiqui
12/10/2014 09:38AM
Re: actual Size calculation of mysql table (engine innodb)  
1,332
Rick James
12/12/2014 08:32PM
Re: actual Size calculation of mysql table (engine innodb)  
1,449
Rick James
12/12/2014 08:36PM
MySQL cash optimization  
2,697
Sasha Katsman
11/27/2014 06:33AM
Re: MySQL cash optimization  
1,596
Peter Brawley
11/27/2014 04:34PM
Re: MySQL cash optimization  
1,294
Sasha Katsman
12/09/2014 04:33AM
Re: MySQL cache optimization  
1,151
Peter Brawley
12/09/2014 12:28PM
how to tune for optimizer_search_depth?  
2,593
jongse park
12/03/2014 12:13AM
Re: how to tune for optimizer_search_depth?  
1,626
Rick James
12/03/2014 11:33PM
Re: how to tune for optimizer_search_depth?  
1,597
Øystein Grøvlen
12/08/2014 05:32AM
MySQL Optimizer Cost Model  
2,295
Edwin Desouza
10/24/2014 10:37AM
Need help to create index on join statments  
2,452
Neil Sorathia
10/08/2014 06:24PM
Re: Need help to create index on join statments  
1,163
Neil Sorathia
10/09/2014 09:46AM
Re: Need help to create index on join statments  
1,260
Rick James
10/11/2014 01:37PM
Better Performance for JOINs Not Using Indexes  
2,164
Edwin Desouza
10/03/2014 01:48PM
A Multi-Table Trick to Speed up Single-Table UPDATE/DELETE Statements  
2,483
Edwin Desouza
10/03/2014 01:47PM
MySQL 5.7: Optimizer Hints + Query Rewrite  
2,412
Edwin Desouza
10/01/2014 08:53AM
Intermediate Query Results  
3,545
Ashwini Singh
09/12/2014 08:37AM
Re: Intermediate Query Results  
1,698
Rick James
09/13/2014 09:23PM
Re: Intermediate Query Results  
1,712
Øystein Grøvlen
09/15/2014 05:42AM
All records scanning using "LIKe" and "IN" operaters  
2,709
ch srinivas
06/28/2014 01:43PM
Re: All records scanning using "LIKe" and "IN" operaters  
1,353
Peter Brawley
06/28/2014 02:22PM
Re: All records scanning using "LIKe" and "IN" operaters  
1,290
Øystein Grøvlen
08/28/2014 03:47PM
Help me to optimize my sql query  
2,609
GAURAV JAIN
08/21/2014 07:29AM
Re: Help me to optimize my sql query  
1,256
Rick James
08/22/2014 06:50AM
How could this SQL be optimized?  
2,563
feng guo
05/29/2014 11:26PM
Re: How could this SQL be optimized?  
1,309
Øystein Grøvlen
05/30/2014 02:41AM
Re: How could this SQL be optimized?  
1,402
feng guo
05/30/2014 02:46AM
Re: How could this SQL be optimized?  
1,246
Marion Gordon
08/21/2014 11:03PM
Re: How could this SQL be optimized?  
1,259
Øystein Grøvlen
08/22/2014 01:54AM
simple uses of order by datetime keep causing 'using filesort'  
3,019
park albert
08/19/2014 05:44PM
Re: simple uses of order by datetime keep causing 'using filesort'  
1,485
Rick James
08/20/2014 07:34PM
Expland and slow-query don't agree  
2,355
Aram Mirzadeh
08/03/2014 06:24AM
Re: Expland and slow-query don't agree  
1,283
Rick James
08/04/2014 01:23PM
Query not using index sporadically  
3,011
Vinay NP
06/13/2014 07:51AM
Re: Query not using index sporadically  
1,264
Rick James
06/18/2014 02:48PM
[HELP] Subquery Optimization  
2,629
Pinoy Central
05/28/2014 08:56PM
MySQL 5.7: Re-factoring internals of Prepared Statements  
2,088
Edwin Desouza
05/15/2014 12:29PM
BETWEEN a DATE and a hard place  
2,403
Gerald Bayles
04/16/2014 02:07PM
Re: BETWEEN a DATE and a hard place  
1,301
Rick James
04/18/2014 05:19PM
Re: BETWEEN a DATE and a hard place  
1,399
Gerald Bayles
04/21/2014 08:36AM
Re: BETWEEN a DATE and a hard place  
1,340
Rick James
04/24/2014 08:20PM
Re: BETWEEN a DATE and a hard place  
1,524
Gerald Bayles
04/25/2014 06:36AM
Re: BETWEEN a DATE and a hard place  
1,292
Rick James
04/26/2014 05:46AM
Re: BETWEEN a DATE and a hard place  
1,333
Gerald Bayles
04/28/2014 07:27AM
Re: BETWEEN a DATE and a hard place  
1,426
Gerald Bayles
05/01/2014 09:41AM
Re: BETWEEN a DATE and a hard place  
1,430
Rick James
05/02/2014 11:39AM
MySQL Optimizer: Features in MySQL 5.7  
2,140
Edwin Desouza
04/22/2014 10:03AM
Access mysql blob data from stored procedure  
3,691
Kalpesh g
04/15/2014 04:38AM
Re: Access mysql blob data from stored procedure  
1,445
Peter Brawley
04/15/2014 11:14AM
PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory  
4,630
Andre Mikulec
03/05/2014 05:38PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory  
1,754
Rick James
03/06/2014 11:21PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory  
1,657
Rick James
03/06/2014 11:23PM
Explain estimate completely wrong for range when partitioned by day  
3,657
Blake Harps
02/13/2014 01:23PM
Re: Explain estimate completely wrong for range when partitioned by day  
1,530
Øystein Grøvlen
02/14/2014 01:29AM
Re: Explain estimate completely wrong for range when partitioned by day  
1,625
Mattias Jonsson
02/14/2014 09:44AM
Re: Explain estimate completely wrong for range when partitioned by day  
1,595
Blake Harps
02/14/2014 03:07PM
Re: Explain estimate completely wrong for range when partitioned by day  
1,497
Blake Harps
02/14/2014 02:58PM
Re: Explain estimate completely wrong for range when partitioned by day  
1,387
Edwin Desouza
02/15/2014 12:39PM
Re: Explain estimate completely wrong for range when partitioned by day  
1,519
Rick James
02/15/2014 12:42PM
Re: Explain estimate completely wrong for range when partitioned by day  
1,487
Blake Harps
03/04/2014 12:27PM
Re: Explain estimate completely wrong for range when partitioned by day  
1,652
Mattias Jonsson
02/17/2014 04:29PM
Subquery with range uses filesort  
4,653
David Marcus
11/16/2013 02:42PM
Re: Subquery with range uses filesort  
1,617
Rick James
11/17/2013 07:42PM
Re: Subquery with range uses filesort  
1,620
David Marcus
11/17/2013 08:01PM
Re: Subquery with range uses filesort  
1,645
Rick James
11/18/2013 04:33PM
Re: Subquery with range uses filesort  
2,177
David Marcus
11/18/2013 07:54PM
Re: Subquery with range uses filesort  
1,846
Rick James
11/19/2013 04:10PM
Re: Subquery with range uses filesort  
1,740
David Marcus
11/19/2013 08:36PM
Re: Subquery with range uses filesort  
1,833
Rick James
11/21/2013 02:55PM
Re: Subquery with range uses filesort  
2,024
David Marcus
12/05/2013 03:46PM
Re: Subquery with range uses filesort  
1,635
Rick James
12/07/2013 02:10PM
Re: Subquery with range uses filesort  
1,598
David Marcus
12/09/2013 06:08PM
Re: Subquery with range uses filesort  
1,706
David Marcus
12/14/2013 09:51PM
Re: Subquery with range uses filesort  
1,576
David Marcus
12/14/2013 10:17PM
Re: Subquery with range uses filesort  
1,669
Rick James
12/15/2013 11:29PM
Re: Subquery with range uses filesort  
1,752
David Marcus
12/17/2013 06:58PM
Re: Subquery with range uses filesort  
1,663
Rick James
12/18/2013 05:49PM
Re: Subquery with range uses filesort  
1,691
David Marcus
12/18/2013 08:28PM
Re: Subquery with range uses filesort  
1,722
Rick James
12/19/2013 10:13PM
Re: Subquery with range uses filesort  
1,689
David Marcus
12/19/2013 10:28PM
Re: Subquery with range uses filesort  
1,528
Rick James
12/20/2013 07:06PM
Re: Subquery with range uses filesort  
1,640
David Marcus
12/21/2013 07:36AM
Re: Subquery with range uses filesort  
1,677
Rick James
12/22/2013 10:01AM
Re: Subquery with range uses filesort  
1,742
David Marcus
12/22/2013 10:45AM
Re: Subquery with range uses filesort  
1,636
David Marcus
12/25/2013 09:30PM
Optimizer executes inperformant subquery first  
3,985
Martin Kirchner
12/06/2013 07:12AM
Re: Optimizer executes inperformant subquery first  
1,625
Rick James
12/07/2013 02:30PM
Re: Optimizer executes inperformant subquery first  
1,830
Martin Kirchner
12/07/2013 03:49PM
Re: Optimizer executes inperformant subquery first  
1,904
Øystein Grøvlen
12/09/2013 09:48AM
Re: Optimizer executes inperformant subquery first  
1,847
Martin Kirchner
12/18/2013 03:04AM
Re: Optimizer executes inperformant subquery first  
1,593
Øystein Grøvlen
12/19/2013 02:45AM
Re: Optimizer executes inperformant subquery first  
1,552
Martin Kirchner
12/20/2013 02:24AM
Re: Optimizer executes inperformant subquery first  
1,524
Øystein Grøvlen
12/23/2013 08:07AM
Re: Optimizer executes inperformant subquery first  
1,459
Rick James
12/23/2013 01:11PM
Re: Optimizer executes inperformant subquery first  
1,580
Martin Kirchner
12/18/2013 05:16AM
Re: Optimizer executes inperformant subquery first  
1,610
Rick James
12/18/2013 06:49PM
Re: Optimizer executes inperformant subquery first  
1,571
Øystein Grøvlen
12/19/2013 02:49AM
my.cnf  
2,573
Juan Medina
10/27/2013 02:08PM
Re: my.cnf  
1,281
Rick James
10/29/2013 07:12PM
my.cnf optimization please help  
4,215
Ivan Kratunkov
10/28/2013 03:39AM
Re: my.cnf optimization please help  
1,498
Rick James
10/29/2013 07:10PM
MySQL Optimizer: Features in MySQL 5.7  
2,279
Edwin Desouza
10/18/2013 09:33AM
I need help in optimzing a order by clause in a join query  
2,616
George Maharis
10/08/2013 12:09PM
Re: I need help in optimzing a order by clause in a join query  
1,387
Rick James
10/10/2013 09:34PM
Re: I need help in optimzing a order by clause in a join query  
1,345
George Maharis
10/12/2013 02:07PM
Re: I need help in optimzing a order by clause in a join query  
1,376
Rick James
10/16/2013 08:36PM
MySQL My.cnf Config Help  
2,689
Mathieu Louis
10/03/2013 09:32PM
Very slow dependent subquery  
2,862
patrick canarelli
09/18/2013 03:06AM
Re: Very slow dependent subquery  
1,653
Øystein Grøvlen
09/18/2013 07:06AM
Re: Very slow dependent subquery  
1,604
patrick canarelli
09/18/2013 07:51AM
Re: Very slow dependent subquery  
1,604
Øystein Grøvlen
09/18/2013 02:57PM
Re: Very slow dependent subquery  
1,490
Peter Brawley
09/18/2013 02:13PM
Re: Very slow dependent subquery  
1,392
patrick canarelli
09/18/2013 03:10PM
Re: Very slow dependent subquery  
1,426
Rick James
09/24/2013 10:04PM
Re: Very slow dependent subquery  
1,760
patrick canarelli
09/25/2013 12:53AM
big database +1 million rows/days  
3,216
khaoula el hammoumi
09/11/2013 04:06AM
Re: big database +1 million rows/days  
1,356
khaoula el hammoumi
09/12/2013 01:37AM
Re: big database +1 million rows/days  
1,375
Rick James
09/13/2013 10:59PM
Optimize query join with 25,000 records  
2,796
Andrea Presazzi
08/26/2013 02:27AM
Re: Optimize query join with 25,000 records  
1,424
Rick James
08/31/2013 04:19PM
Index not used for JOIN on compound key plus WHERE range filter  
4,162
Chad B
08/15/2013 09:24AM
Re: Index not used for JOIN on compound key plus WHERE range filter  
1,887
Chad B
08/15/2013 10:44AM
Re: Index not used for JOIN on compound key plus WHERE range filter  
1,607
Rick James
08/31/2013 04:13PM
query index not used  
2,164
Adrian Petre
08/15/2013 05:23AM
Re: query index not used  
1,228
Rick James
08/31/2013 03:41PM
optimize request with order by and limit  
3,156
yassine laouija
07/18/2013 05:26AM
Re: optimize request with order by and limit  
1,570
Rick James
07/20/2013 10:25PM
Re: optimize request with order by and limit  
1,357
yassine laouija
07/22/2013 09:46AM
Re: optimize request with order by and limit  
1,293
Rick James
07/23/2013 08:58AM
Re: optimize request with order by and limit  
1,350
yassine laouija
07/26/2013 04:07AM
Re: optimize request with order by and limit  
1,363
Rick James
07/26/2013 11:53PM
Re: optimize request with order by and limit  
1,450
yassine laouija
07/29/2013 04:40AM
Re: optimize request with order by and limit  
1,346
Rick James
08/01/2013 10:39PM
providing a single line for multiple records from a table  
2,449
raja chacham
07/23/2013 09:56AM
Re: providing a single line for multiple records from a table  
1,224
Rick James
07/24/2013 09:08AM
Optimize Inner Join With WHERE BETWEEN dates  
4,402
Anthony Galano
05/21/2013 07:32PM
Re: Optimize Inner Join With WHERE BETWEEN dates  
1,803
Rick James
05/22/2013 06:41PM
Re: Optimize Inner Join With WHERE BETWEEN dates  
1,755
Anthony Galano
05/24/2013 12:40PM
Re: Optimize Inner Join With WHERE BETWEEN dates  
1,622
Rick James
05/25/2013 11:43AM
Re: Optimize Inner Join With WHERE BETWEEN dates  
1,694
Anthony Galano
05/30/2013 05:30PM
Re: Optimize Inner Join With WHERE BETWEEN dates  
1,587
Rick James
06/02/2013 01:15PM
Re: Optimize Inner Join With WHERE BETWEEN dates  
1,748
Anthony Galano
06/03/2013 05:02PM
Re: Optimize Inner Join With WHERE BETWEEN dates  
2,951
Rick James
06/04/2013 11:49PM
Query optimization  
3,034
Jan Kowalski
05/10/2013 05:35AM
Re: Query optimization  
1,465
Rick James
05/12/2013 08:42PM
Re: Query optimization  
1,436
Jan Kowalski
05/15/2013 06:45AM
Re: Query optimization  
1,442
Jan Kowalski
05/15/2013 08:35AM
Re: Query optimization  
1,559
Rick James
05/16/2013 08:18AM
Re: Query optimization  
1,510
Jan Kowalski
05/17/2013 03:52AM
Re: Query optimization  
1,427
Rick James
05/17/2013 11:47PM
Re: Query optimization  
1,341
Jan Kowalski
05/21/2013 08:51AM
Re: Query optimization  
1,497
Jan Kowalski
05/22/2013 08:08AM
MySQL Optimizer: When is a Subquery Executed?  
2,253
Edwin Desouza
05/02/2013 10:05AM
Index optimized left join with group by  
3,814
Michal Kurgan
03/11/2013 05:41PM
Re: Index optimized left join with group by  
1,430
Øystein Grøvlen
03/12/2013 04:16AM
Select last row that is less than or equal to a date  
7,171
David Marcus
01/23/2013 06:35PM
Re: Select last row that is less than or equal to a date  
2,204
Rick James
01/24/2013 10:27PM
Re: Select last row that is less than or equal to a date  
2,127
David Marcus
01/26/2013 09:35AM
Re: Select last row that is less than or equal to a date  
1,932
Rick James
01/27/2013 10:19AM
Re: Select last row that is less than or equal to a date  
2,184
David Marcus
01/27/2013 12:00PM
Re: Select last row that is less than or equal to a date  
1,829
Rick James
01/29/2013 12:51AM
Re: Select last row that is less than or equal to a date  
1,872
David Marcus
01/29/2013 06:28PM
Re: Select last row that is less than or equal to a date  
2,325
Øystein Grøvlen
01/30/2013 04:50AM
Re: Select last row that is less than or equal to a date  
1,836
David Marcus
01/30/2013 05:50PM
Re: Select last row that is less than or equal to a date  
1,793
Øystein Grøvlen
02/01/2013 06:03AM
Re: Select last row that is less than or equal to a date  
1,894
David Marcus
02/02/2013 07:14AM
Re: Select last row that is less than or equal to a date  
1,747
Øystein Grøvlen
02/02/2013 01:49PM
Re: Select last row that is less than or equal to a date  
1,801
David Marcus
02/02/2013 02:25PM
Re: Select last row that is less than or equal to a date  
1,705
Øystein Grøvlen
02/03/2013 05:58AM
Re: Select last row that is less than or equal to a date  
1,736
David Marcus
02/03/2013 10:04AM
Re: Select last row that is less than or equal to a date  
1,832
Rick James
02/03/2013 10:43AM
Re: Select last row that is less than or equal to a date  
2,375
David Marcus
02/03/2013 12:33PM
Re: Select last row that is less than or equal to a date  
1,793
Rick James
02/03/2013 02:59PM
Re: Select last row that is less than or equal to a date  
1,977
David Marcus
02/03/2013 03:35PM
Re: Select last row that is less than or equal to a date  
1,884
Rick James
02/03/2013 04:02PM
Re: Select last row that is less than or equal to a date  
1,877
David Marcus
02/03/2013 04:15PM
Very slow query, help please  
3,020
Jaume Roca
01/29/2013 10:18AM
Re: Very slow query, help please  
1,671
Øystein Grøvlen
01/30/2013 05:12AM
Re: Very slow query, help please  
1,600
Rick James
01/30/2013 08:38AM
Re: Very slow query, help please  
1,624
Jaume Roca
01/30/2013 09:05AM
MySQL 5.6: IN Subqueries Are Optimized away  
2,312
Edwin Desouza
01/29/2013 01:08PM
CPU load very very high !!!!, Please assist !!  
9,066
Sayed Ali
01/22/2013 06:49AM
Re: CPU load very very high !!!!, Please assist !!  
3,156
Rick James
01/22/2013 11:32PM
New EXPLAIN Features in MySQL 5.6 – FORMAT=JSON actually adds more information!  
2,423
Edwin Desouza
01/22/2013 05:58PM
Can we expect an enhancement for derived table merge optimization?  
4,356
Michael Hogue
01/04/2013 12:04PM
Re: Can we expect an enhancement for derived table merge optimization?  
1,805
Rick James
01/07/2013 10:50PM
Re: Can we expect an enhancement for derived table merge optimization?  
2,242
Roy Lyseng
01/11/2013 09:18AM
Re: Can we expect an enhancement for derived table merge optimization?  
1,547
Rick James
01/13/2013 12:24PM
Re: Can we expect an enhancement for derived table merge optimization?  
1,757
Roy Lyseng
01/14/2013 08:43AM
Re: Can we expect an enhancement for derived table merge optimization?  
1,529
Rick James
01/14/2013 09:54AM
Re: Can we expect an enhancement for derived table merge optimization?  
1,669
Roy Lyseng
01/15/2013 06:15AM
Re: Can we expect an enhancement for derived table merge optimization?  
1,556
Roy Lyseng
01/11/2013 08:51AM
How to best optimize MYSQL Database  
2,704
Muhammad Usman
12/10/2012 03:45AM
Re: How to best optimize MYSQL Database  
1,429
Rick James
12/21/2012 12:49PM
Pages:
« 1 2 3 4 5
...
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.