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Subject Views Written By Posted
Sticky:  MySQL Parser (1 Posts)   674 Edwin Desouza 04/03/2014 03:31PM
Sticky:  MySQL Optimizer: Features in MySQL 5.7 (1 Posts)   2,004 Edwin Desouza 12/18/2012 11:38AM
Sticky:  MySQL EXPLAIN (1 Posts)   2,727 Edwin Desouza 07/10/2012 10:32AM
Sticky:  MySQL Optimizer: Blogs (1 Posts)   8,083 Edwin DeSouza 04/28/2007 06:20PM
foreign key creation in a huge database   87 Raffael Vendrametto 03/05/2015 04:05PM
Please do NOT duplicate posts   25 Peter Brawley 03/05/2015 05:42PM
Query Taking 2.5hrs on 5.6.20 version   95 ch srinivas 03/04/2015 01:30AM
Re: Query Taking 2.5hrs on 5.6.20 version   36 Peter Brawley 03/04/2015 12:15PM
Re: Query Taking 2.5hrs on 5.6.20 version   35 Rick James 03/04/2015 08:18PM
Query optimisation advice   255 Paul Feely 01/08/2015 11:02PM
Re: Query optimisation advice   91 Rick James 01/10/2015 01:22AM
Re: Query optimisation advice   89 Paul Feely 01/11/2015 05:50PM
Re: Query optimisation advice   89 Rick James 01/12/2015 10:35PM
actual Size calculation of mysql table (engine innodb)   270 Afaque Ahmad Siddiqui 12/10/2014 09:38AM
Re: actual Size calculation of mysql table (engine innodb)   101 Rick James 12/12/2014 08:32PM
Re: actual Size calculation of mysql table (engine innodb)   97 Rick James 12/12/2014 08:36PM
MySQL cash optimization   372 Sasha Katsman 11/27/2014 06:33AM
Re: MySQL cash optimization   143 Peter Brawley 11/27/2014 04:34PM
Re: MySQL cash optimization   111 Sasha Katsman 12/09/2014 04:33AM
Re: MySQL cache optimization   99 Peter Brawley 12/09/2014 12:28PM
how to tune for optimizer_search_depth?   240 jongse park 12/03/2014 12:13AM
Re: how to tune for optimizer_search_depth?   134 Rick James 12/03/2014 11:33PM
Re: how to tune for optimizer_search_depth?   157 Øystein Grøvlen 12/08/2014 05:32AM
MySQL Optimizer Cost Model   408 Edwin Desouza 10/24/2014 10:37AM
Need help to create index on join statments   416 Neil Sorathia 10/08/2014 06:24PM
Re: Need help to create index on join statments   191 Neil Sorathia 10/09/2014 09:46AM
Re: Need help to create index on join statments   221 Rick James 10/11/2014 01:37PM
Better Performance for JOINs Not Using Indexes   401 Edwin Desouza 10/03/2014 01:48PM
A Multi-Table Trick to Speed up Single-Table UPDATE/DELETE Statements   415 Edwin Desouza 10/03/2014 01:47PM
MySQL 5.7: Optimizer Hints + Query Rewrite   343 Edwin Desouza 10/01/2014 08:53AM
Intermediate Query Results   437 Ashwini Singh 09/12/2014 08:37AM
Re: Intermediate Query Results   249 Rick James 09/13/2014 09:23PM
Re: Intermediate Query Results   268 Øystein Grøvlen 09/15/2014 05:42AM
All records scanning using "LIKe" and "IN" operaters   505 ch srinivas 06/28/2014 01:43PM
Re: All records scanning using "LIKe" and "IN" operaters   266 Peter Brawley 06/28/2014 02:22PM
Re: All records scanning using "LIKe" and "IN" operaters   219 Øystein Grøvlen 08/28/2014 03:47PM
Help me to optimize my sql query   418 GAURAV JAIN 08/21/2014 07:29AM
Re: Help me to optimize my sql query   207 Rick James 08/22/2014 06:50AM
How could this SQL be optimized?   603 feng guo 05/29/2014 11:26PM
Re: How could this SQL be optimized?   302 Øystein Grøvlen 05/30/2014 02:41AM
Re: How could this SQL be optimized?   337 feng guo 05/30/2014 02:46AM
Re: How could this SQL be optimized?   243 Marion Gordon 08/21/2014 11:03PM
Re: How could this SQL be optimized?   202 Øystein Grøvlen 08/22/2014 01:54AM
simple uses of order by datetime keep causing 'using filesort'   540 park albert 08/19/2014 05:44PM
Re: simple uses of order by datetime keep causing 'using filesort'   227 Rick James 08/20/2014 07:34PM
Expland and slow-query don't agree   453 Aram Mirzadeh 08/03/2014 06:24AM
Re: Expland and slow-query don't agree   212 Rick James 08/04/2014 01:23PM
Query not using index sporadically   599 Vinay NP 06/13/2014 07:51AM
Re: Query not using index sporadically   291 Rick James 06/18/2014 02:48PM
[HELP] Subquery Optimization   536 Pinoy Central 05/28/2014 08:56PM
MySQL 5.7: Re-factoring internals of Prepared Statements   506 Edwin Desouza 05/15/2014 12:29PM
BETWEEN a DATE and a hard place   724 Gerald Bayles 04/16/2014 02:07PM
Re: BETWEEN a DATE and a hard place   323 Rick James 04/18/2014 05:19PM
Re: BETWEEN a DATE and a hard place   332 Gerald Bayles 04/21/2014 08:36AM
Re: BETWEEN a DATE and a hard place   345 Rick James 04/24/2014 08:20PM
Re: BETWEEN a DATE and a hard place   318 Gerald Bayles 04/25/2014 06:36AM
Re: BETWEEN a DATE and a hard place   310 Rick James 04/26/2014 05:46AM
Re: BETWEEN a DATE and a hard place   310 Gerald Bayles 04/28/2014 07:27AM
Re: BETWEEN a DATE and a hard place   316 Gerald Bayles 05/01/2014 09:41AM
Re: BETWEEN a DATE and a hard place   361 Rick James 05/02/2014 11:39AM
MySQL Optimizer: Features in MySQL 5.7   544 Edwin Desouza 04/22/2014 10:03AM
Access mysql blob data from stored procedure   761 Kalpesh g 04/15/2014 04:38AM
Re: Access mysql blob data from stored procedure   353 Peter Brawley 04/15/2014 11:14AM
PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   795 Andre Mikulec 03/05/2014 05:38PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   400 Rick James 03/06/2014 11:21PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   398 Rick James 03/06/2014 11:23PM
Explain estimate completely wrong for range when partitioned by day   983 Blake Harps 02/13/2014 01:23PM
Re: Explain estimate completely wrong for range when partitioned by day   418 Øystein Grøvlen 02/14/2014 01:29AM
Re: Explain estimate completely wrong for range when partitioned by day   434 Mattias Jonsson 02/14/2014 09:44AM
Re: Explain estimate completely wrong for range when partitioned by day   409 Blake Harps 02/14/2014 03:07PM
Re: Explain estimate completely wrong for range when partitioned by day   414 Blake Harps 02/14/2014 02:58PM
Re: Explain estimate completely wrong for range when partitioned by day   418 Edwin Desouza 02/15/2014 12:39PM
Re: Explain estimate completely wrong for range when partitioned by day   419 Rick James 02/15/2014 12:42PM
Re: Explain estimate completely wrong for range when partitioned by day   395 Blake Harps 03/04/2014 12:27PM
Re: Explain estimate completely wrong for range when partitioned by day   417 Mattias Jonsson 02/17/2014 04:29PM
Subquery with range uses filesort   1,276 David Marcus 11/16/2013 02:42PM
Re: Subquery with range uses filesort   524 Rick James 11/17/2013 07:42PM
Re: Subquery with range uses filesort   460 David Marcus 11/17/2013 08:01PM
Re: Subquery with range uses filesort   470 Rick James 11/18/2013 04:33PM
Re: Subquery with range uses filesort   571 David Marcus 11/18/2013 07:54PM
Re: Subquery with range uses filesort   513 Rick James 11/19/2013 04:10PM
Re: Subquery with range uses filesort   508 David Marcus 11/19/2013 08:36PM
Re: Subquery with range uses filesort   526 Rick James 11/21/2013 02:55PM
Re: Subquery with range uses filesort   505 David Marcus 12/05/2013 03:46PM
Re: Subquery with range uses filesort   475 Rick James 12/07/2013 02:10PM
Re: Subquery with range uses filesort   445 David Marcus 12/09/2013 06:08PM
Re: Subquery with range uses filesort   485 David Marcus 12/14/2013 09:51PM
Re: Subquery with range uses filesort   448 David Marcus 12/14/2013 10:17PM
Re: Subquery with range uses filesort   486 Rick James 12/15/2013 11:29PM
Re: Subquery with range uses filesort   551 David Marcus 12/17/2013 06:58PM
Re: Subquery with range uses filesort   463 Rick James 12/18/2013 05:49PM
Re: Subquery with range uses filesort   456 David Marcus 12/18/2013 08:28PM
Re: Subquery with range uses filesort   484 Rick James 12/19/2013 10:13PM
Re: Subquery with range uses filesort   449 David Marcus 12/19/2013 10:28PM
Re: Subquery with range uses filesort   457 Rick James 12/20/2013 07:06PM
Re: Subquery with range uses filesort   475 David Marcus 12/21/2013 07:36AM
Re: Subquery with range uses filesort   501 Rick James 12/22/2013 10:01AM
Re: Subquery with range uses filesort   494 David Marcus 12/22/2013 10:45AM
Re: Subquery with range uses filesort   465 David Marcus 12/25/2013 09:30PM
Optimizer executes inperformant subquery first   1,108 Martin Kirchner 12/06/2013 07:12AM
Re: Optimizer executes inperformant subquery first   445 Rick James 12/07/2013 02:30PM
Re: Optimizer executes inperformant subquery first   511 Martin Kirchner 12/07/2013 03:49PM
Re: Optimizer executes inperformant subquery first   658 Øystein Grøvlen 12/09/2013 09:48AM
Re: Optimizer executes inperformant subquery first   413 Martin Kirchner 12/18/2013 03:04AM
Re: Optimizer executes inperformant subquery first   463 Øystein Grøvlen 12/19/2013 02:45AM
Re: Optimizer executes inperformant subquery first   426 Martin Kirchner 12/20/2013 02:24AM
Re: Optimizer executes inperformant subquery first   427 Øystein Grøvlen 12/23/2013 08:07AM
Re: Optimizer executes inperformant subquery first   458 Rick James 12/23/2013 01:11PM
Re: Optimizer executes inperformant subquery first   479 Martin Kirchner 12/18/2013 05:16AM
Re: Optimizer executes inperformant subquery first   497 Rick James 12/18/2013 06:49PM
Re: Optimizer executes inperformant subquery first   455 Øystein Grøvlen 12/19/2013 02:49AM
my.cnf   900 Juan Medina 10/27/2013 02:08PM
Re: my.cnf   453 Rick James 10/29/2013 07:12PM
my.cnf optimization please help   1,320 Ivan Kratunkov 10/28/2013 03:39AM
Re: my.cnf optimization please help   544 Rick James 10/29/2013 07:10PM
MySQL Optimizer: Features in MySQL 5.7   740 Edwin Desouza 10/18/2013 09:33AM
I need help in optimzing a order by clause in a join query   877 George Maharis 10/08/2013 12:09PM
Re: I need help in optimzing a order by clause in a join query   503 Rick James 10/10/2013 09:34PM
Re: I need help in optimzing a order by clause in a join query   476 George Maharis 10/12/2013 02:07PM
Re: I need help in optimzing a order by clause in a join query   453 Rick James 10/16/2013 08:36PM
MySQL My.cnf Config Help   905 Mathieu Louis 10/03/2013 09:32PM
Very slow dependent subquery   1,102 patrick canarelli 09/18/2013 03:06AM
Re: Very slow dependent subquery   641 Øystein Grøvlen 09/18/2013 07:06AM
Re: Very slow dependent subquery   559 patrick canarelli 09/18/2013 07:51AM
Re: Very slow dependent subquery   546 Øystein Grøvlen 09/18/2013 02:57PM
Re: Very slow dependent subquery   526 Peter Brawley 09/18/2013 02:13PM
Re: Very slow dependent subquery   518 patrick canarelli 09/18/2013 03:10PM
Re: Very slow dependent subquery   534 Rick James 09/24/2013 10:04PM
Re: Very slow dependent subquery   622 patrick canarelli 09/25/2013 12:53AM
big database +1 million rows/days   1,105 khaoula el hammoumi 09/11/2013 04:06AM
Re: big database +1 million rows/days   544 khaoula el hammoumi 09/12/2013 01:37AM
Re: big database +1 million rows/days   544 Rick James 09/13/2013 10:59PM
Optimize query join with 25,000 records   1,002 Andrea Presazzi 08/26/2013 02:27AM
Re: Optimize query join with 25,000 records   490 Rick James 08/31/2013 04:19PM
Index not used for JOIN on compound key plus WHERE range filter   1,571 Chad B 08/15/2013 09:24AM
Re: Index not used for JOIN on compound key plus WHERE range filter   709 Chad B 08/15/2013 10:44AM
Re: Index not used for JOIN on compound key plus WHERE range filter   625 Rick James 08/31/2013 04:13PM
query index not used   837 Adrian Petre 08/15/2013 05:23AM
Re: query index not used   479 Rick James 08/31/2013 03:41PM
optimize request with order by and limit   1,274 yassine laouija 07/18/2013 05:26AM
Re: optimize request with order by and limit   616 Rick James 07/20/2013 10:25PM
Re: optimize request with order by and limit   591 yassine laouija 07/22/2013 09:46AM
Re: optimize request with order by and limit   512 Rick James 07/23/2013 08:58AM
Re: optimize request with order by and limit   568 yassine laouija 07/26/2013 04:07AM
Re: optimize request with order by and limit   580 Rick James 07/26/2013 11:53PM
Re: optimize request with order by and limit   581 yassine laouija 07/29/2013 04:40AM
Re: optimize request with order by and limit   602 Rick James 08/01/2013 10:39PM
providing a single line for multiple records from a table   927 raja chacham 07/23/2013 09:56AM
Re: providing a single line for multiple records from a table   500 Rick James 07/24/2013 09:08AM
Optimize Inner Join With WHERE BETWEEN dates   1,590 Anthony Galano 05/21/2013 07:32PM
Re: Optimize Inner Join With WHERE BETWEEN dates   800 Rick James 05/22/2013 06:41PM
Re: Optimize Inner Join With WHERE BETWEEN dates   735 Anthony Galano 05/24/2013 12:40PM
Re: Optimize Inner Join With WHERE BETWEEN dates   707 Rick James 05/25/2013 11:43AM
Re: Optimize Inner Join With WHERE BETWEEN dates   665 Anthony Galano 05/30/2013 05:30PM
Re: Optimize Inner Join With WHERE BETWEEN dates   660 Rick James 06/02/2013 01:15PM
Re: Optimize Inner Join With WHERE BETWEEN dates   669 Anthony Galano 06/03/2013 05:02PM
Re: Optimize Inner Join With WHERE BETWEEN dates   1,124 Rick James 06/04/2013 11:49PM
Query optimization   1,308 Jan Kowalski 05/10/2013 05:35AM
Re: Query optimization   688 Rick James 05/12/2013 08:42PM
Re: Query optimization   639 Jan Kowalski 05/15/2013 06:45AM
Re: Query optimization   605 Jan Kowalski 05/15/2013 08:35AM
Re: Query optimization   609 Rick James 05/16/2013 08:18AM
Re: Query optimization   649 Jan Kowalski 05/17/2013 03:52AM
Re: Query optimization   631 Rick James 05/17/2013 11:47PM
Re: Query optimization   588 Jan Kowalski 05/21/2013 08:51AM
Re: Query optimization   623 Jan Kowalski 05/22/2013 08:08AM
MySQL Optimizer: When is a Subquery Executed?   985 Edwin Desouza 05/02/2013 10:05AM
Index optimized left join with group by   1,596 Michal Kurgan 03/11/2013 05:41PM
Re: Index optimized left join with group by   720 Øystein Grøvlen 03/12/2013 04:16AM
Select last row that is less than or equal to a date   3,660 David Marcus 01/23/2013 06:35PM
Re: Select last row that is less than or equal to a date   1,014 Rick James 01/24/2013 10:27PM
Re: Select last row that is less than or equal to a date   1,023 David Marcus 01/26/2013 09:35AM
Re: Select last row that is less than or equal to a date   914 Rick James 01/27/2013 10:19AM
Re: Select last row that is less than or equal to a date   913 David Marcus 01/27/2013 12:00PM
Re: Select last row that is less than or equal to a date   816 Rick James 01/29/2013 12:51AM
Re: Select last row that is less than or equal to a date   811 David Marcus 01/29/2013 06:28PM
Re: Select last row that is less than or equal to a date   1,040 Øystein Grøvlen 01/30/2013 04:50AM
Re: Select last row that is less than or equal to a date   943 David Marcus 01/30/2013 05:50PM
Re: Select last row that is less than or equal to a date   856 Øystein Grøvlen 02/01/2013 06:03AM
Re: Select last row that is less than or equal to a date   869 David Marcus 02/02/2013 07:14AM
Re: Select last row that is less than or equal to a date   882 Øystein Grøvlen 02/02/2013 01:49PM
Re: Select last row that is less than or equal to a date   876 David Marcus 02/02/2013 02:25PM
Re: Select last row that is less than or equal to a date   794 Øystein Grøvlen 02/03/2013 05:58AM
Re: Select last row that is less than or equal to a date   843 David Marcus 02/03/2013 10:04AM
Re: Select last row that is less than or equal to a date   909 Rick James 02/03/2013 10:43AM
Re: Select last row that is less than or equal to a date   1,026 David Marcus 02/03/2013 12:33PM
Re: Select last row that is less than or equal to a date   909 Rick James 02/03/2013 02:59PM
Re: Select last row that is less than or equal to a date   896 David Marcus 02/03/2013 03:35PM
Re: Select last row that is less than or equal to a date   917 Rick James 02/03/2013 04:02PM
Re: Select last row that is less than or equal to a date   932 David Marcus 02/03/2013 04:15PM
Very slow query, help please   1,344 Jaume Roca 01/29/2013 10:18AM
Re: Very slow query, help please   786 Øystein Grøvlen 01/30/2013 05:12AM
Re: Very slow query, help please   773 Rick James 01/30/2013 08:38AM
Re: Very slow query, help please   840 Jaume Roca 01/30/2013 09:05AM
MySQL 5.6: IN Subqueries Are Optimized away   1,161 Edwin Desouza 01/29/2013 01:08PM
CPU load very very high !!!!, Please assist !!   4,450 Sayed Ali 01/22/2013 06:49AM
Re: CPU load very very high !!!!, Please assist !!   1,705 Rick James 01/22/2013 11:32PM
New EXPLAIN Features in MySQL 5.6 – FORMAT=JSON actually adds more information!   1,297 Edwin Desouza 01/22/2013 05:58PM
Can we expect an enhancement for derived table merge optimization?   2,125 Michael Hogue 01/04/2013 12:04PM
Re: Can we expect an enhancement for derived table merge optimization?   822 Rick James 01/07/2013 10:50PM
Re: Can we expect an enhancement for derived table merge optimization?   1,104 Roy Lyseng 01/11/2013 09:18AM
Re: Can we expect an enhancement for derived table merge optimization?   815 Rick James 01/13/2013 12:24PM
Re: Can we expect an enhancement for derived table merge optimization?   869 Roy Lyseng 01/14/2013 08:43AM
Re: Can we expect an enhancement for derived table merge optimization?   761 Rick James 01/14/2013 09:54AM
Re: Can we expect an enhancement for derived table merge optimization?   830 Roy Lyseng 01/15/2013 06:15AM
Re: Can we expect an enhancement for derived table merge optimization?   781 Roy Lyseng 01/11/2013 08:51AM
How to best optimize MYSQL Database   1,544 Muhammad Usman 12/10/2012 03:45AM
Re: How to best optimize MYSQL Database   777 Rick James 12/21/2012 12:49PM
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