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Posted
Select Query and Two Tables  
1,110
Steve Royle
12/05/2016 09:43AM
Re: Select Query and Two Tables  
1,093
Peter Brawley
12/05/2016 11:01AM
Re: Select Query and Two Tables  
741
Steve Royle
12/07/2016 05:05AM
Performance issues afre upgrading to 5.7  
1,996
Alexandru Badulescu
11/24/2016 08:48AM
Re: Performance issues afre upgrading to 5.7  
1,050
Peter Brawley
11/24/2016 11:32AM
Re: Performance issues afre upgrading to 5.7  
1,009
Øystein Grøvlen
11/25/2016 07:28AM
Re: Performance issues afre upgrading to 5.7  
1,201
Øystein Grøvlen
11/25/2016 06:16AM
Re: Performance issues afre upgrading to 5.7  
862
Alexandru Badulescu
11/25/2016 06:59AM
Re: Performance issues afre upgrading to 5.7  
988
Øystein Grøvlen
11/25/2016 07:53AM
Re: Performance issues afre upgrading to 5.7  
935
Rick James
11/25/2016 08:18PM
why select @@session.tx_read_only take long time  
3,362
h h
10/31/2016 01:53AM
Re: why select @@session.tx_read_only take long time  
2,923
Rick James
11/02/2016 11:43AM
Query optimizatoin  
1,156
Syed Anjum
10/26/2016 03:32AM
Re: Query optimizatoin  
715
Øystein Grøvlen
10/26/2016 04:41AM
Writing sample data very fast from (TwinCAT) PLC to a MySQL database?  
1,652
sdgbfdsg fdhgfdhds
10/18/2016 08:14AM
Re: Writing sample data very fast from (TwinCAT) PLC to a MySQL database?  
1,555
Rick James
10/23/2016 12:08AM
How to Analyze and Tune MySQL Queries for Better Performance  
1,059
Edwin Desouza
10/21/2016 09:57AM
Locked queries  
2,137
Juan Nino
09/28/2016 06:31PM
Re: Locked queries  
977
Peter Brawley
09/29/2016 09:39AM
MySQL optimisation for single laptop with 16 GB RAM  
1,697
Philip Gladwin
09/08/2016 05:58AM
Re: MySQL optimisation for single laptop with 16 GB RAM  
949
Rick James
09/10/2016 12:17AM
Relationship between MySQL variable open_files_limit and table_open_cache  
1,610
salman khan
09/09/2016 04:34AM
Re: Relationship between MySQL variable open_files_limit and table_open_cache  
934
Rick James
09/10/2016 12:13AM
Millions of rows, storing aggregate/rollup results help please  
1,779
Jacqueline Jacobin
08/28/2016 12:23PM
Re: Millions of rows, storing aggregate/rollup results help please  
1,117
Rick James
08/30/2016 02:47PM
Re: Millions of rows, storing aggregate/rollup results help please  
991
Jacqueline Jacobin
08/31/2016 07:03AM
Re: Millions of rows, storing aggregate/rollup results help please  
936
Rick James
09/01/2016 04:35PM
Multiple indexes - how do they work?  
1,487
Rathi Rao
08/25/2016 03:51AM
Re: Multiple indexes - how do they work?  
704
Peter Brawley
08/25/2016 11:29AM
Re: Multiple indexes - how do they work?  
744
Rathi Rao
08/29/2016 03:48AM
Re: Multiple indexes - how do they work?  
784
Rick James
08/26/2016 02:20PM
Re: Multiple indexes - how do they work?  
702
Rathi Rao
08/29/2016 03:46AM
Re: Multiple indexes - how do they work?  
930
Øystein Grøvlen
08/29/2016 01:23AM
Re: Multiple indexes - how do they work?  
767
Rathi Rao
08/29/2016 03:45AM
Re: Multiple indexes - how do they work?  
828
Øystein Grøvlen
08/29/2016 04:17AM
Re: Multiple indexes - how do they work?  
712
Rathi Rao
08/29/2016 04:39AM
MySQL Table Valued Parameter  
4,943
tony mendoza
08/23/2016 11:29AM
Re: MySQL Table Valued Parameter  
1,958
Rick James
08/26/2016 02:17PM
Partitioned table details in the Explain Plan  
1,323
Rathi Rao
08/19/2016 01:54AM
Re: Partitioned table details in the Explain Plan  
717
Øystein Grøvlen
08/19/2016 07:00AM
Re: Partitioned table details in the Explain Plan  
762
Rick James
08/20/2016 06:10PM
Rolling unique user counts  
1,488
Paul Stam
08/09/2016 02:06AM
Re: Rolling unique user counts  
831
Rick James
08/14/2016 06:22PM
Re: Rolling unique user counts  
805
Paul Stam
08/15/2016 01:49AM
Re: Rolling unique user counts  
777
Paul Stam
08/18/2016 06:03AM
Re: Rolling unique user counts  
826
Rick James
08/18/2016 04:37PM
Wrong estimation of Rows in explain  
2,012
Rathi Rao
07/27/2016 06:19AM
Re: Wrong estimation of Rows in explain  
1,011
Peter Brawley
07/27/2016 08:55AM
Re: Wrong estimation of Rows in explain  
1,063
Rathi Rao
07/27/2016 11:58PM
Re: Wrong estimation of Rows in explain  
946
Peter Brawley
07/28/2016 09:14AM
Re: Wrong estimation of Rows in explain  
910
Rathi Rao
07/29/2016 05:11AM
Re: Wrong estimation of Rows in explain  
916
Peter Brawley
07/29/2016 01:10PM
Re: Wrong estimation of Rows in explain  
920
Rick James
07/29/2016 06:58PM
Re: Wrong estimation of Rows in explain  
896
Rathi Rao
08/02/2016 05:48AM
Re: Wrong estimation of Rows in explain  
938
Rick James
08/02/2016 06:23PM
Re: Wrong estimation of Rows in explain  
897
Rathi Rao
08/02/2016 05:38AM
Re: Wrong estimation of Rows in explain  
898
james wang
08/04/2016 05:31AM
30 millions reads/day  
1,256
Srinivas K
07/29/2016 05:34AM
Re: 30 millions reads/day  
802
Rick James
07/29/2016 07:03PM
Re: 30 millions reads/day  
744
james wang
08/04/2016 05:15AM
mysql commit slow,please help me  
2,015
jw maple
07/27/2016 02:11AM
Re: mysql commit slow,please help me  
1,014
Rick James
07/29/2016 05:15PM
Very slow query when too many joins  
4,356
As Os
06/05/2016 09:17AM
Re: Very slow query when too many joins  
1,631
As Os
06/05/2016 09:27AM
Re: Very slow query when too many joins  
1,455
Peter Brawley
06/05/2016 10:14AM
Re: Very slow query when too many joins  
1,248
As Os
06/05/2016 10:48AM
Re: Very slow query when too many joins  
1,259
Peter Brawley
06/05/2016 10:56AM
Re: Very slow query when too many joins  
1,253
As Os
06/05/2016 03:33PM
Re: Very slow query when too many joins  
1,105
Peter Brawley
06/05/2016 03:41PM
Re: Very slow query when too many joins  
1,181
Rick James
06/05/2016 05:36PM
Re: Very slow query when too many joins  
1,129
As Os
06/06/2016 02:23AM
Re: Very slow query when too many joins  
1,098
As Os
06/06/2016 03:33AM
Re: Very slow query when too many joins  
968
As Os
06/06/2016 08:36AM
Re: Very slow query when too many joins  
1,018
Peter Brawley
06/06/2016 08:52AM
Re: Very slow query when too many joins  
1,104
As Os
06/06/2016 09:02AM
Re: Very slow query when too many joins  
1,072
Peter Brawley
06/06/2016 11:16AM
Re: Very slow query when too many joins  
1,183
Peter Brawley
06/06/2016 08:29AM
Re: Very slow query when too many joins  
1,053
As Os
06/06/2016 11:30AM
Re: Very slow query when too many joins  
1,122
Peter Brawley
06/06/2016 12:08PM
Re: Very slow query when too many joins  
1,054
As Os
06/06/2016 02:11PM
Re: Very slow query when too many joins  
1,088
Rick James
06/07/2016 03:40PM
Re: Very slow query when too many joins  
1,108
james wang
07/20/2016 05:34AM
Re: Very slow query when too many joins  
1,068
Rick James
07/20/2016 09:37AM
Re: Very slow query when too many joins  
1,159
james wang
07/21/2016 04:43AM
Re: Very slow query when too many joins  
1,014
Rick James
07/22/2016 10:59PM
MySQL data volume  
1,220
Parfait Fortuné NDOLO
07/21/2016 10:21AM
Re: MySQL data volume  
744
Peter Brawley
07/21/2016 11:41PM
Re: MySQL data volume  
882
Rick James
07/22/2016 10:57PM
Query optimize on large database  
1,458
Pavel Volkov
07/13/2016 01:40AM
Re: Query optimize on large database  
866
Rick James
07/15/2016 05:12PM
Re: Query optimize on large database  
840
Pavel Volkov
07/16/2016 04:15AM
Re: Query optimize on large database  
786
Peter Brawley
07/16/2016 12:09PM
Re: Query optimize on large database  
866
Pavel Volkov
07/16/2016 12:36PM
Re: Query optimize on large database  
801
Rick James
07/16/2016 02:46PM
Re: Query optimize on large database  
876
Peter Brawley
07/17/2016 11:22AM
Re: Query optimize on large database  
835
Pavel Volkov
07/18/2016 04:28AM
Re: Query optimize on large database  
801
Peter Brawley
07/18/2016 08:40AM
Re: Query optimize on large database  
780
james wang
07/20/2016 04:46AM
Re: Query optimize on large database  
851
Pavel Volkov
07/20/2016 08:06AM
Re: Query optimize on large database  
819
Rick James
07/20/2016 09:29AM
Re: Query optimize on large database  
817
james wang
07/21/2016 04:35AM
Unexplained very bad subquery performance  
1,637
Arnaud Bertrand
07/18/2016 04:29AM
Re: Unexplained very bad subquery performance  
849
Peter Brawley
07/18/2016 08:44AM
Re: Unexplained very bad subquery performance  
946
Arnaud Bertrand
07/18/2016 01:06PM
Re: Unexplained very bad subquery performance  
822
Peter Brawley
07/18/2016 03:30PM
Re: Unexplained very bad subquery performance  
910
Arnaud Bertrand
07/19/2016 03:16AM
Re: Unexplained very bad subquery performance  
811
Peter Brawley
07/19/2016 04:21AM
Re: Unexplained very bad subquery performance  
827
james wang
07/20/2016 04:35AM
specify conditions from outer query on a materialized subquery  
1,206
Pratik Gandhi
07/12/2016 10:55PM
Re: specify conditions from outer query on a materialized subquery  
696
Rick James
07/15/2016 05:15PM
This topic has been moved.:  GOT PACKETS OUT OF ORDER  
12
Jeisson Sierra
07/11/2016 07:48PM
count(*) or count(id)  
4,392
Ra Nala
06/28/2016 06:22AM
Re: count(*) or count(id)  
1,402
Ra Nala
06/28/2016 06:26AM
Re: count(*) or count(id)  
1,215
Peter Brawley
06/28/2016 05:18PM
Re: count(*) or count(id)  
1,361
Rick James
07/04/2016 01:04PM
Re: count(*) or count(id)  
1,008
Ra Nala
07/06/2016 12:30AM
CREATE INDEX Online DDL Not Working  
1,559
Jayanath Dissanayake
06/20/2016 05:02AM
Re: CREATE INDEX Online DDL Not Working  
888
Øystein Grøvlen
06/22/2016 12:43AM
Re: CREATE INDEX Online DDL Not Working  
843
Rick James
06/23/2016 07:07PM
Select random rows when using UUID  
2,771
Jonathan Keen
06/09/2016 11:43AM
Re: Select random rows when using UUID  
1,939
Rick James
06/13/2016 01:36AM
Re: Select random rows when using UUID  
1,284
Jonathan Keen
06/14/2016 11:23AM
Re: Select random rows when using UUID  
1,105
Rick James
06/18/2016 01:35AM
SQLSTATE[HY000] [1044] Access denied  
10,605
YOONTAE KIM
06/16/2016 07:55PM
Index Not being used.  
2,816
Greg Mundt
05/26/2016 02:29PM
Re: Index Not being used.  
1,269
Peter Brawley
05/26/2016 03:53PM
Re: Index Not being used.  
1,114
Øystein Grøvlen
05/27/2016 12:45AM
Re: Index Not being used.  
1,024
Greg Mundt
05/27/2016 07:05AM
Re: Index Not being used.  
1,023
Rick James
05/27/2016 11:29PM
Re: Index Not being used.  
1,141
Greg Mundt
05/31/2016 07:04AM
Re: Index Not being used.  
970
Rick James
05/31/2016 09:26PM
Re: Index Not being used.  
1,033
Greg Mundt
06/01/2016 05:40AM
Re: Index Not being used.  
837
Rick James
06/01/2016 11:29AM
Re: Index Not being used.  
1,069
Greg Mundt
06/01/2016 11:41AM
Re: Index Not being used.  
1,004
Rick James
06/04/2016 05:14PM
Re: Index Not being used.  
1,030
Greg Mundt
05/27/2016 10:14AM
A proposal to make disk IO much faster under SSD  
1,796
suiyemin sui
05/29/2016 09:16PM
Re: A proposal to make disk IO much faster under SSD  
1,020
Rick James
05/31/2016 09:48PM
Re: A proposal to make disk IO much faster under SSD  
964
suiyemin sui
06/01/2016 02:05AM
Re: A proposal to make disk IO much faster under SSD  
890
Rick James
06/04/2016 04:38PM
query taking really long time.  
1,422
Mehraz Ahmed Sheikh
05/16/2016 09:45AM
Re: query taking really long time.  
855
Rick James
05/23/2016 02:58PM
Left join vs Inner join  
1,943
Vikas Sood
05/09/2016 06:10PM
Re: Left join vs Inner join  
1,054
Øystein Grøvlen
05/10/2016 08:04AM
Re: Left join vs Inner join  
948
Vikas Sood
05/10/2016 10:40AM
Re: Left join vs Inner join  
922
Rick James
05/10/2016 07:23PM
How can I improve the import speed of a large SQL file?  
20,902
Jeff Vincent
05/06/2016 09:46AM
Re: How can I improve the import speed of a large SQL file?  
8,075
Peter Brawley
05/06/2016 11:49AM
Re: How can I improve the import speed of a large SQL file?  
5,385
Jeff Vincent
05/06/2016 12:17PM
Re: How can I improve the import speed of a large SQL file?  
5,169
Rick James
05/06/2016 05:44PM
Re: How can I improve the import speed of a large SQL file?  
4,571
Shane Bester
05/08/2016 04:49AM
text vs varchar  
2,695
hua kai
04/28/2016 08:36AM
Re: text vs varchar  
2,390
Øystein Grøvlen
04/29/2016 12:41AM
Re: text vs varchar  
1,680
Rick James
04/30/2016 11:51PM
Re: text vs varchar  
1,554
Øystein Grøvlen
05/02/2016 04:37AM
Re: text vs varchar  
1,383
hua kai
05/02/2016 09:14PM
Re: text vs varchar  
1,479
Øystein Grøvlen
05/03/2016 02:19AM
Re: text vs varchar  
2,493
hua kai
05/03/2016 04:12AM
Re: text vs varchar  
1,417
hua kai
05/02/2016 08:02PM
Re: text vs varchar  
1,649
Øystein Grøvlen
05/03/2016 02:25AM
Query with 2 x subquery  
1,767
Jes Ramsing
04/29/2016 06:44AM
Re: Query with 2 x subquery  
930
Øystein Grøvlen
04/29/2016 08:01AM
Re: Query with 2 x subquery  
899
Jes Ramsing
05/01/2016 11:57PM
Re: Query with 2 x subquery  
972
Øystein Grøvlen
05/02/2016 03:45AM
Re: Query with 2 x subquery  
947
Jes Ramsing
05/02/2016 05:32AM
Re: Query with 2 x subquery  
927
Rick James
05/01/2016 11:58PM
Re: Query with 2 x subquery  
983
Jes Ramsing
05/02/2016 02:16AM
Slow Query, Optimization Advice Needed  
1,664
Michael Lawson
04/26/2016 09:30AM
Re: Slow Query, Optimization Advice Needed  
833
Øystein Grøvlen
04/27/2016 01:02AM
Re: Slow Query, Optimization Advice Needed  
967
Michael Lawson
04/27/2016 07:20PM
Re: Slow Query, Optimization Advice Needed  
781
Peter Brawley
04/27/2016 11:28PM
Re: Slow Query, Optimization Advice Needed  
947
Øystein Grøvlen
04/28/2016 01:25AM
Re: Slow Query, Optimization Advice Needed  
907
Rick James
05/01/2016 11:47PM
Re: Slow Query, Optimization Advice Needed  
860
Øystein Grøvlen
05/02/2016 01:28AM
Re: Slow Query, Optimization Advice Needed  
921
Øystein Grøvlen
04/28/2016 01:12AM
Reg table design and query performances  
1,605
Devrishi Shandilya
04/26/2016 03:02AM
Re: Reg table design and query performances  
869
Øystein Grøvlen
04/26/2016 06:02AM
Re: Reg table design and query performances  
1,034
Devrishi Shandilya
04/26/2016 06:16AM
Re: Reg table design and query performances  
889
Øystein Grøvlen
04/26/2016 06:35AM
Re: Reg table design and query performances  
835
Devrishi Shandilya
04/26/2016 06:50AM
Re: Reg table design and query performances  
978
Øystein Grøvlen
04/26/2016 07:04AM
Re: Reg table design and query performances  
735
Rick James
04/30/2016 11:46PM
Re: Reg table design and query performances  
785
Øystein Grøvlen
05/02/2016 01:00AM
Memory benefits of huge pages  
4,878
Olga Turetskaya
04/30/2016 11:21AM
Re: Memory benefits of huge pages  
2,158
Rick James
05/01/2016 02:36PM
Configuration review requested  
2,132
Jens Meier
04/13/2016 11:55AM
Re: Configuration review requested  
872
Rick James
04/14/2016 01:39PM
block_ops_in and block_ops_out meaning  
4,639
hua kai
03/18/2016 02:33AM
Re: block_ops_in and block_ops_out meaning  
2,072
Rick James
03/21/2016 11:34PM
Re: block_ops_in and block_ops_out meaning  
2,041
Peter Brawley
03/22/2016 02:03AM
Re: block_ops_in and block_ops_out meaning  
2,009
hua kai
03/25/2016 12:30AM
Re: block_ops_in and block_ops_out meaning  
1,746
hua kai
04/14/2016 12:52AM
order by primary key slowly  
2,693
varky chan
04/05/2016 10:42PM
Re: order by primary key slowly  
1,205
Øystein Grøvlen
04/06/2016 04:35AM
Re: order by primary key slowly  
1,159
varky chan
04/06/2016 10:15AM
Re: order by primary key slowly  
1,189
Peter Brawley
04/06/2016 11:23AM
Re: order by primary key slowly  
1,291
varky chan
04/06/2016 08:11PM
Re: order by primary key slowly  
1,252
Peter Brawley
04/06/2016 10:35PM
Re: order by primary key slowly  
1,188
varky chan
04/07/2016 12:34AM
Re: order by primary key slowly  
3,505
Øystein Grøvlen
04/07/2016 07:21AM
Re: order by primary key slowly  
1,240
Peter Brawley
04/07/2016 10:20AM
Re: order by primary key slowly  
1,137
varky chan
04/07/2016 11:26PM
Re: order by primary key slowly  
1,274
Rick James
04/12/2016 07:42PM
Re: order by primary key slowly  
1,125
Peter Brawley
04/06/2016 08:57AM
Re: order by primary key slowly  
1,124
varky chan
04/06/2016 10:17AM
[INNODB] why there are many "waiting for table level lock"?  
1,597
HANWEN YIN
04/11/2016 12:08AM
Re: [INNODB] why there are many "waiting for table level lock"?  
996
Rick James
04/12/2016 07:27PM
Improve performance when altering huge tables  
2,060
Davide Cicuta
04/04/2016 07:24AM
Re: Improve performance when altering huge tables  
1,036
Rick James
04/05/2016 02:59PM
MySql 5.7 - Poor Performance PURGE BINARY LOGS  
2,476
Davy Campano
03/23/2016 08:08PM
Re: MySql 5.7 - Poor Performance PURGE BINARY LOGS  
1,091
Rick James
03/26/2016 11:58PM
Re: MySql 5.7 - Poor Performance PURGE BINARY LOGS  
1,076
Davy Campano
03/29/2016 09:44AM
where the snapshot for select in transaction stored  
1,370
hua kai
03/21/2016 03:03AM
Re: where the snapshot for select in transaction stored  
795
Rick James
03/21/2016 11:21PM
Difference execution plans for same query  
1,790
Devrishi Shandilya
02/25/2016 12:05AM
Re: Difference execution plans for same query  
921
Peter Brawley
02/25/2016 01:51AM
Re: Difference execution plans for same query  
937
Øystein Grøvlen
02/25/2016 03:51AM
Re: Difference execution plans for same query  
930
Rick James
03/05/2016 01:19AM
Slow join performance  
1,801
Ra Nala
11/27/2015 04:55AM
Re: Slow join performance  
1,035
Rick James
11/28/2015 03:02PM
Re: Slow join performance  
966
Ra Nala
02/25/2016 06:22AM
which is best for JOIN approach  
1,642
Ra Nala
11/24/2015 09:39AM
Re: which is best for JOIN approach  
997
Øystein Grøvlen
11/25/2015 02:14AM
Re: which is best for JOIN approach  
1,022
Ra Nala
11/25/2015 02:42AM
Re: which is best for JOIN approach  
1,039
Rick James
11/29/2015 11:53AM
Re: which is best for JOIN approach  
933
Ra Nala
02/19/2016 05:28AM
Re: which is best for JOIN approach  
886
Peter Brawley
02/21/2016 04:56PM
Re: which is best for JOIN approach  
960
Ra Nala
02/19/2016 05:31AM
Re: which is best for JOIN approach  
838
Rick James
02/21/2016 01:40PM
Re: which is best for JOIN approach  
888
Rick James
02/21/2016 01:43PM
Re: which is best for JOIN approach  
915
Ra Nala
02/25/2016 05:50AM
Why is wrong index being selected  
1,342
Steve Bell
02/23/2016 01:54PM
Re: Why is wrong index being selected  
786
Rick James
02/23/2016 11:39PM
Re: Why is wrong index being selected  
953
Øystein Grøvlen
02/24/2016 03:22AM
Re: Why is wrong index being selected  
781
Steve Bell
02/25/2016 02:47AM
Distinct or Group by which is faster  
1,778
Ra Nala
02/22/2016 08:50AM
Re: Distinct or Group by which is faster  
923
Peter Brawley
02/22/2016 12:33PM
Re: Distinct or Group by which is faster  
860
Chandan Kumar
02/23/2016 12:51PM
MySQL server is not disk bound, how do I make it faster?  
1,538
Robert Gunther
02/21/2016 09:35PM
Re: MySQL server is not disk bound, how do I make it faster?  
693
Peter Brawley
02/22/2016 12:38PM
Re: MySQL server is not disk bound, how do I make it faster?  
753
Rick James
02/22/2016 06:18PM
This topic has been moved.:  MySQL optimisation for single laptop with 16 GB RAM  
0
Philip Gladwin
09/08/2016 09:41AM
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