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•   Announcing April 2026 Releases featuring MySQL Server 9.7.0, 8.4.9 and 8.0.46 04/27/2026 03:22AM

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Please do NOT duplicate posts  
1,194
03/05/2015 05:42PM
Re: Query Taking 2.5hrs on 5.6.20 version  
1,356
03/04/2015 12:15PM
Re: Query Taking 2.5hrs on 5.6.20 version  
1,272
03/04/2015 08:18PM
2,650
01/08/2015 11:02PM
Re: Query optimisation advice  
1,380
01/10/2015 01:22AM
Re: Query optimisation advice  
1,300
01/11/2015 05:50PM
Re: Query optimisation advice  
1,364
01/12/2015 10:35PM
Re: actual Size calculation of mysql table (engine innodb)  
1,429
12/12/2014 08:32PM
Re: actual Size calculation of mysql table (engine innodb)  
1,567
12/12/2014 08:36PM
2,897
11/27/2014 06:33AM
Re: MySQL cash optimization  
1,692
11/27/2014 04:34PM
Re: MySQL cash optimization  
1,382
12/09/2014 04:33AM
Re: MySQL cache optimization  
1,242
12/09/2014 12:28PM
Re: how to tune for optimizer_search_depth?  
1,698
12/03/2014 11:33PM
Re: how to tune for optimizer_search_depth?  
1,689
12/08/2014 05:32AM
2,447
10/24/2014 10:37AM
Re: Need help to create index on join statments  
1,257
10/09/2014 09:46AM
Re: Need help to create index on join statments  
1,336
10/11/2014 01:37PM
3,812
09/12/2014 08:37AM
Re: Intermediate Query Results  
1,776
09/13/2014 09:23PM
Re: Intermediate Query Results  
1,821
09/15/2014 05:42AM
Re: All records scanning using "LIKe" and "IN" operaters  
1,439
06/28/2014 02:22PM
Re: All records scanning using "LIKe" and "IN" operaters  
1,376
08/28/2014 03:47PM
2,815
08/21/2014 07:29AM
Re: Help me to optimize my sql query  
1,320
08/22/2014 06:50AM
2,742
05/29/2014 11:26PM
Re: How could this SQL be optimized?  
1,392
05/30/2014 02:41AM
Re: How could this SQL be optimized?  
1,497
05/30/2014 02:46AM
Re: How could this SQL be optimized?  
1,307
08/21/2014 11:03PM
Re: How could this SQL be optimized?  
1,350
08/22/2014 01:54AM
Re: simple uses of order by datetime keep causing 'using filesort'  
1,579
08/20/2014 07:34PM
Re: Expland and slow-query don't agree  
1,358
08/04/2014 01:23PM
3,483
06/13/2014 07:51AM
Re: Query not using index sporadically  
1,364
06/18/2014 02:48PM
2,793
05/28/2014 08:56PM
2,621
04/16/2014 02:07PM
Re: BETWEEN a DATE and a hard place  
1,445
04/18/2014 05:19PM
Re: BETWEEN a DATE and a hard place  
1,520
04/21/2014 08:36AM
Re: BETWEEN a DATE and a hard place  
1,442
04/24/2014 08:20PM
Re: BETWEEN a DATE and a hard place  
1,642
04/25/2014 06:36AM
Re: BETWEEN a DATE and a hard place  
1,388
04/26/2014 05:46AM
Re: BETWEEN a DATE and a hard place  
1,446
04/28/2014 07:27AM
Re: BETWEEN a DATE and a hard place  
1,535
05/01/2014 09:41AM
Re: BETWEEN a DATE and a hard place  
1,520
05/02/2014 11:39AM
Re: Access mysql blob data from stored procedure  
1,542
04/15/2014 11:14AM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory  
1,834
03/06/2014 11:21PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory  
1,727
03/06/2014 11:23PM
Re: Explain estimate completely wrong for range when partitioned by day  
1,634
02/14/2014 01:29AM
Re: Explain estimate completely wrong for range when partitioned by day  
1,719
02/14/2014 09:44AM
Re: Explain estimate completely wrong for range when partitioned by day  
1,702
02/14/2014 03:07PM
Re: Explain estimate completely wrong for range when partitioned by day  
1,614
02/14/2014 02:58PM
Re: Explain estimate completely wrong for range when partitioned by day  
1,498
02/15/2014 12:39PM
Re: Explain estimate completely wrong for range when partitioned by day  
1,627
02/15/2014 12:42PM
Re: Explain estimate completely wrong for range when partitioned by day  
1,610
03/04/2014 12:27PM
Re: Explain estimate completely wrong for range when partitioned by day  
1,787
02/17/2014 04:29PM
5,002
11/16/2013 02:42PM
Re: Subquery with range uses filesort  
1,765
11/17/2013 07:42PM
Re: Subquery with range uses filesort  
1,942
11/17/2013 08:01PM
Re: Subquery with range uses filesort  
1,799
11/18/2013 04:33PM
Re: Subquery with range uses filesort  
2,337
11/18/2013 07:54PM
Re: Subquery with range uses filesort  
2,018
11/19/2013 04:10PM
Re: Subquery with range uses filesort  
1,928
11/19/2013 08:36PM
Re: Subquery with range uses filesort  
2,063
11/21/2013 02:55PM
Re: Subquery with range uses filesort  
2,185
12/05/2013 03:46PM
Re: Subquery with range uses filesort  
1,859
12/07/2013 02:10PM
Re: Subquery with range uses filesort  
1,736
12/09/2013 06:08PM
Re: Subquery with range uses filesort  
1,906
12/14/2013 09:51PM
Re: Subquery with range uses filesort  
1,738
12/14/2013 10:17PM
Re: Subquery with range uses filesort  
1,944
12/15/2013 11:29PM
Re: Subquery with range uses filesort  
2,059
12/17/2013 06:58PM
Re: Subquery with range uses filesort  
1,823
12/18/2013 05:49PM
Re: Subquery with range uses filesort  
1,897
12/18/2013 08:28PM
Re: Subquery with range uses filesort  
1,905
12/19/2013 10:13PM
Re: Subquery with range uses filesort  
1,853
12/19/2013 10:28PM
Re: Subquery with range uses filesort  
1,686
12/20/2013 07:06PM
Re: Subquery with range uses filesort  
1,814
12/21/2013 07:36AM
Re: Subquery with range uses filesort  
1,981
12/22/2013 10:01AM
Re: Subquery with range uses filesort  
1,894
12/22/2013 10:45AM
Re: Subquery with range uses filesort  
1,809
12/25/2013 09:30PM
Re: Optimizer executes inperformant subquery first  
1,738
12/07/2013 02:30PM
Re: Optimizer executes inperformant subquery first  
1,940
12/07/2013 03:49PM
Re: Optimizer executes inperformant subquery first  
2,046
12/09/2013 09:48AM
Re: Optimizer executes inperformant subquery first  
1,975
12/18/2013 03:04AM
Re: Optimizer executes inperformant subquery first  
1,721
12/19/2013 02:45AM
Re: Optimizer executes inperformant subquery first  
1,678
12/20/2013 02:24AM
Re: Optimizer executes inperformant subquery first  
1,670
12/23/2013 08:07AM
Re: Optimizer executes inperformant subquery first  
1,575
12/23/2013 01:11PM
Re: Optimizer executes inperformant subquery first  
1,725
12/18/2013 05:16AM
Re: Optimizer executes inperformant subquery first  
1,702
12/18/2013 06:49PM
Re: Optimizer executes inperformant subquery first  
1,688
12/19/2013 02:49AM
my.cnf  
2,808
10/27/2013 02:08PM
Re: my.cnf  
1,355
10/29/2013 07:12PM
4,464
10/28/2013 03:39AM
Re: my.cnf optimization please help  
1,577
10/29/2013 07:10PM
Re: I need help in optimzing a order by clause in a join query  
1,483
10/10/2013 09:34PM
Re: I need help in optimzing a order by clause in a join query  
1,471
10/12/2013 02:07PM
Re: I need help in optimzing a order by clause in a join query  
1,471
10/16/2013 08:36PM
2,892
10/03/2013 09:32PM
3,070
09/18/2013 03:06AM
Re: Very slow dependent subquery  
1,743
09/18/2013 07:06AM
Re: Very slow dependent subquery  
1,680
09/18/2013 07:51AM
Re: Very slow dependent subquery  
1,708
09/18/2013 02:57PM
Re: Very slow dependent subquery  
1,568
09/18/2013 02:13PM
Re: Very slow dependent subquery  
1,504
09/18/2013 03:10PM
Re: Very slow dependent subquery  
1,516
09/24/2013 10:04PM
Re: Very slow dependent subquery  
1,853
09/25/2013 12:53AM
Re: big database +1 million rows/days  
1,431
09/12/2013 01:37AM
Re: big database +1 million rows/days  
1,446
09/13/2013 10:59PM
Re: Optimize query join with 25,000 records  
1,493
08/31/2013 04:19PM
Re: Index not used for JOIN on compound key plus WHERE range filter  
1,966
08/15/2013 10:44AM
Re: Index not used for JOIN on compound key plus WHERE range filter  
1,684
08/31/2013 04:13PM
2,343
08/15/2013 05:23AM
Re: query index not used  
1,306
08/31/2013 03:41PM
Re: optimize request with order by and limit  
1,678
07/20/2013 10:25PM
Re: optimize request with order by and limit  
1,439
07/22/2013 09:46AM
Re: optimize request with order by and limit  
1,384
07/23/2013 08:58AM
Re: optimize request with order by and limit  
1,435
07/26/2013 04:07AM
Re: optimize request with order by and limit  
1,443
07/26/2013 11:53PM
Re: optimize request with order by and limit  
1,533
07/29/2013 04:40AM
Re: optimize request with order by and limit  
1,438
08/01/2013 10:39PM
Re: providing a single line for multiple records from a table  
1,302
07/24/2013 09:08AM
Re: Optimize Inner Join With WHERE BETWEEN dates  
1,932
05/22/2013 06:41PM
Re: Optimize Inner Join With WHERE BETWEEN dates  
1,860
05/24/2013 12:40PM
Re: Optimize Inner Join With WHERE BETWEEN dates  
1,756
05/25/2013 11:43AM
Re: Optimize Inner Join With WHERE BETWEEN dates  
1,841
05/30/2013 05:30PM
Re: Optimize Inner Join With WHERE BETWEEN dates  
1,701
06/02/2013 01:15PM
Re: Optimize Inner Join With WHERE BETWEEN dates  
1,871
06/03/2013 05:02PM
Re: Optimize Inner Join With WHERE BETWEEN dates  
3,062
06/04/2013 11:49PM
3,239
05/10/2013 05:35AM
Re: Query optimization  
1,554
05/12/2013 08:42PM
Re: Query optimization  
1,526
05/15/2013 06:45AM
Re: Query optimization  
1,559
05/15/2013 08:35AM
Re: Query optimization  
1,679
05/16/2013 08:18AM
Re: Query optimization  
1,627
05/17/2013 03:52AM
Re: Query optimization  
1,510
05/17/2013 11:47PM
Re: Query optimization  
1,429
05/21/2013 08:51AM
Re: Query optimization  
1,584
05/22/2013 08:08AM
Re: Index optimized left join with group by  
1,508
03/12/2013 04:16AM
Re: Select last row that is less than or equal to a date  
2,341
01/24/2013 10:27PM
Re: Select last row that is less than or equal to a date  
2,260
01/26/2013 09:35AM
Re: Select last row that is less than or equal to a date  
2,069
01/27/2013 10:19AM
Re: Select last row that is less than or equal to a date  
2,535
01/27/2013 12:00PM
Re: Select last row that is less than or equal to a date  
1,958
01/29/2013 12:51AM
Re: Select last row that is less than or equal to a date  
2,151
01/29/2013 06:28PM
Re: Select last row that is less than or equal to a date  
2,680
01/30/2013 04:50AM
Re: Select last row that is less than or equal to a date  
2,197
01/30/2013 05:50PM
Re: Select last row that is less than or equal to a date  
1,981
02/01/2013 06:03AM
Re: Select last row that is less than or equal to a date  
2,023
02/02/2013 07:14AM
Re: Select last row that is less than or equal to a date  
1,931
02/02/2013 01:49PM
Re: Select last row that is less than or equal to a date  
1,923
02/02/2013 02:25PM
Re: Select last row that is less than or equal to a date  
1,868
02/03/2013 05:58AM
Re: Select last row that is less than or equal to a date  
1,859
02/03/2013 10:04AM
Re: Select last row that is less than or equal to a date  
2,244
02/03/2013 10:43AM
Re: Select last row that is less than or equal to a date  
2,516
02/03/2013 12:33PM
Re: Select last row that is less than or equal to a date  
1,951
02/03/2013 02:59PM
Re: Select last row that is less than or equal to a date  
2,182
02/03/2013 03:35PM
Re: Select last row that is less than or equal to a date  
2,017
02/03/2013 04:02PM
Re: Select last row that is less than or equal to a date  
2,003
02/03/2013 04:15PM
3,227
01/29/2013 10:18AM
Re: Very slow query, help please  
1,781
01/30/2013 05:12AM
Re: Very slow query, help please  
1,689
01/30/2013 08:38AM
Re: Very slow query, help please  
1,701
01/30/2013 09:05AM
Re: CPU load very very high !!!!, Please assist !!  
3,228
01/22/2013 11:32PM
Re: Can we expect an enhancement for derived table merge optimization?  
1,946
01/07/2013 10:50PM
Re: Can we expect an enhancement for derived table merge optimization?  
2,495
01/11/2013 09:18AM
Re: Can we expect an enhancement for derived table merge optimization?  
1,644
01/13/2013 12:24PM
Re: Can we expect an enhancement for derived table merge optimization?  
1,899
01/14/2013 08:43AM
Re: Can we expect an enhancement for derived table merge optimization?  
1,635
01/14/2013 09:54AM
Re: Can we expect an enhancement for derived table merge optimization?  
1,771
01/15/2013 06:15AM
Re: Can we expect an enhancement for derived table merge optimization?  
1,661
01/11/2013 08:51AM
Re: How to best optimize MYSQL Database  
1,505
12/21/2012 12:49PM
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