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Subject Views Written By Posted
Sticky:  MySQL Parser (1 Posts)   277 Edwin Desouza 04/03/2014 03:31PM
Sticky:  MySQL Optimizer: Features in MySQL 5.7 (1 Posts)   1,642 Edwin Desouza 12/18/2012 11:38AM
Sticky:  MySQL EXPLAIN (1 Posts)   2,374 Edwin Desouza 07/10/2012 10:32AM
Sticky:  MySQL Optimizer: Blogs (1 Posts)   7,738 Edwin DeSouza 04/28/2007 06:20PM
Help me to optimize my sql query   23 GAURAV JAIN 08/21/2014 07:29AM
Re: Help me to optimize my sql query   0 Rick James 08/22/2014 06:50AM
How could this SQL be optimized?   212 feng guo 05/29/2014 11:26PM
Re: How could this SQL be optimized?   82 Øystein Grøvlen 05/30/2014 02:41AM
Re: How could this SQL be optimized?   85 feng guo 05/30/2014 02:46AM
Re: How could this SQL be optimized?   8 Marion Gordon 08/21/2014 11:03PM
Re: How could this SQL be optimized?   3 Øystein Grøvlen 08/22/2014 01:54AM
simple uses of order by datetime keep causing 'using filesort'   40 park albert 08/19/2014 05:44PM
Re: simple uses of order by datetime keep causing 'using filesort'   8 Rick James 08/20/2014 07:34PM
Expland and slow-query don't agree   83 Aram Mirzadeh 08/03/2014 06:24AM
Re: Expland and slow-query don't agree   20 Rick James 08/04/2014 01:23PM
All records scanning using "LIKe" and "IN" operaters   150 ch srinivas 06/28/2014 01:43PM
Re: All records scanning using "LIKe" and "IN" operaters   47 Peter Brawley 06/28/2014 02:22PM
Query not using index sporadically   183 Vinay NP 06/13/2014 07:51AM
Re: Query not using index sporadically   58 Rick James 06/18/2014 02:48PM
[HELP] Subquery Optimization   165 Pinoy Central 05/28/2014 08:56PM
MySQL 5.7: Re-factoring internals of Prepared Statements   150 Edwin Desouza 05/15/2014 12:29PM
BETWEEN a DATE and a hard place   263 Gerald Bayles 04/16/2014 02:07PM
Re: BETWEEN a DATE and a hard place   113 Rick James 04/18/2014 05:19PM
Re: BETWEEN a DATE and a hard place   107 Gerald Bayles 04/21/2014 08:36AM
Re: BETWEEN a DATE and a hard place   95 Rick James 04/24/2014 08:20PM
Re: BETWEEN a DATE and a hard place   95 Gerald Bayles 04/25/2014 06:36AM
Re: BETWEEN a DATE and a hard place   90 Rick James 04/26/2014 05:46AM
Re: BETWEEN a DATE and a hard place   97 Gerald Bayles 04/28/2014 07:27AM
Re: BETWEEN a DATE and a hard place   85 Gerald Bayles 05/01/2014 09:41AM
Re: BETWEEN a DATE and a hard place   91 Rick James 05/02/2014 11:39AM
MySQL Optimizer: Features in MySQL 5.7   214 Edwin Desouza 04/22/2014 10:03AM
Access mysql blob data from stored procedure   270 Kalpesh g 04/15/2014 04:38AM
Re: Access mysql blob data from stored procedure   109 Peter Brawley 04/15/2014 11:14AM
PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   367 Andre Mikulec 03/05/2014 05:38PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   148 Rick James 03/06/2014 11:21PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   149 Rick James 03/06/2014 11:23PM
Explain estimate completely wrong for range when partitioned by day   455 Blake Harps 02/13/2014 01:23PM
Re: Explain estimate completely wrong for range when partitioned by day   188 Øystein Grøvlen 02/14/2014 01:29AM
Re: Explain estimate completely wrong for range when partitioned by day   182 Mattias Jonsson 02/14/2014 09:44AM
Re: Explain estimate completely wrong for range when partitioned by day   180 Blake Harps 02/14/2014 03:07PM
Re: Explain estimate completely wrong for range when partitioned by day   181 Blake Harps 02/14/2014 02:58PM
Re: Explain estimate completely wrong for range when partitioned by day   176 Edwin Desouza 02/15/2014 12:39PM
Re: Explain estimate completely wrong for range when partitioned by day   171 Rick James 02/15/2014 12:42PM
Re: Explain estimate completely wrong for range when partitioned by day   144 Blake Harps 03/04/2014 12:27PM
Re: Explain estimate completely wrong for range when partitioned by day   179 Mattias Jonsson 02/17/2014 04:29PM
Subquery with range uses filesort   706 David Marcus 11/16/2013 02:42PM
Re: Subquery with range uses filesort   241 Rick James 11/17/2013 07:42PM
Re: Subquery with range uses filesort   223 David Marcus 11/17/2013 08:01PM
Re: Subquery with range uses filesort   244 Rick James 11/18/2013 04:33PM
Re: Subquery with range uses filesort   253 David Marcus 11/18/2013 07:54PM
Re: Subquery with range uses filesort   220 Rick James 11/19/2013 04:10PM
Re: Subquery with range uses filesort   228 David Marcus 11/19/2013 08:36PM
Re: Subquery with range uses filesort   245 Rick James 11/21/2013 02:55PM
Re: Subquery with range uses filesort   235 David Marcus 12/05/2013 03:46PM
Re: Subquery with range uses filesort   205 Rick James 12/07/2013 02:10PM
Re: Subquery with range uses filesort   204 David Marcus 12/09/2013 06:08PM
Re: Subquery with range uses filesort   201 David Marcus 12/14/2013 09:51PM
Re: Subquery with range uses filesort   193 David Marcus 12/14/2013 10:17PM
Re: Subquery with range uses filesort   205 Rick James 12/15/2013 11:29PM
Re: Subquery with range uses filesort   238 David Marcus 12/17/2013 06:58PM
Re: Subquery with range uses filesort   202 Rick James 12/18/2013 05:49PM
Re: Subquery with range uses filesort   189 David Marcus 12/18/2013 08:28PM
Re: Subquery with range uses filesort   196 Rick James 12/19/2013 10:13PM
Re: Subquery with range uses filesort   195 David Marcus 12/19/2013 10:28PM
Re: Subquery with range uses filesort   192 Rick James 12/20/2013 07:06PM
Re: Subquery with range uses filesort   199 David Marcus 12/21/2013 07:36AM
Re: Subquery with range uses filesort   213 Rick James 12/22/2013 10:01AM
Re: Subquery with range uses filesort   224 David Marcus 12/22/2013 10:45AM
Re: Subquery with range uses filesort   194 David Marcus 12/25/2013 09:30PM
Optimizer executes inperformant subquery first   640 Martin Kirchner 12/06/2013 07:12AM
Re: Optimizer executes inperformant subquery first   213 Rick James 12/07/2013 02:30PM
Re: Optimizer executes inperformant subquery first   246 Martin Kirchner 12/07/2013 03:49PM
Re: Optimizer executes inperformant subquery first   296 Øystein Grøvlen 12/09/2013 09:48AM
Re: Optimizer executes inperformant subquery first   205 Martin Kirchner 12/18/2013 03:04AM
Re: Optimizer executes inperformant subquery first   205 Øystein Grøvlen 12/19/2013 02:45AM
Re: Optimizer executes inperformant subquery first   213 Martin Kirchner 12/20/2013 02:24AM
Re: Optimizer executes inperformant subquery first   208 Øystein Grøvlen 12/23/2013 08:07AM
Re: Optimizer executes inperformant subquery first   196 Rick James 12/23/2013 01:11PM
Re: Optimizer executes inperformant subquery first   193 Martin Kirchner 12/18/2013 05:16AM
Re: Optimizer executes inperformant subquery first   200 Rick James 12/18/2013 06:49PM
Re: Optimizer executes inperformant subquery first   198 Øystein Grøvlen 12/19/2013 02:49AM
my.cnf   525 Juan Medina 10/27/2013 02:08PM
Re: my.cnf   228 Rick James 10/29/2013 07:12PM
my.cnf optimization please help   737 Ivan Kratunkov 10/28/2013 03:39AM
Re: my.cnf optimization please help   293 Rick James 10/29/2013 07:10PM
MySQL Optimizer: Features in MySQL 5.7   424 Edwin Desouza 10/18/2013 09:33AM
I need help in optimzing a order by clause in a join query   520 George Maharis 10/08/2013 12:09PM
Re: I need help in optimzing a order by clause in a join query   258 Rick James 10/10/2013 09:34PM
Re: I need help in optimzing a order by clause in a join query   246 George Maharis 10/12/2013 02:07PM
Re: I need help in optimzing a order by clause in a join query   230 Rick James 10/16/2013 08:36PM
MySQL My.cnf Config Help   499 Mathieu Louis 10/03/2013 09:32PM
Very slow dependent subquery   626 patrick canarelli 09/18/2013 03:06AM
Re: Very slow dependent subquery   349 Øystein Grøvlen 09/18/2013 07:06AM
Re: Very slow dependent subquery   295 patrick canarelli 09/18/2013 07:51AM
Re: Very slow dependent subquery   274 Øystein Grøvlen 09/18/2013 02:57PM
Re: Very slow dependent subquery   297 Peter Brawley 09/18/2013 02:13PM
Re: Very slow dependent subquery   286 patrick canarelli 09/18/2013 03:10PM
Re: Very slow dependent subquery   291 Rick James 09/24/2013 10:04PM
Re: Very slow dependent subquery   345 patrick canarelli 09/25/2013 12:53AM
big database +1 million rows/days   651 khaoula el hammoumi 09/11/2013 04:06AM
Re: big database +1 million rows/days   304 khaoula el hammoumi 09/12/2013 01:37AM
Re: big database +1 million rows/days   313 Rick James 09/13/2013 10:59PM
Optimize query join with 25,000 records   624 Andrea Presazzi 08/26/2013 02:27AM
Re: Optimize query join with 25,000 records   296 Rick James 08/31/2013 04:19PM
Index not used for JOIN on compound key plus WHERE range filter   957 Chad B 08/15/2013 09:24AM
Re: Index not used for JOIN on compound key plus WHERE range filter   445 Chad B 08/15/2013 10:44AM
Re: Index not used for JOIN on compound key plus WHERE range filter   350 Rick James 08/31/2013 04:13PM
query index not used   525 Adrian Petre 08/15/2013 05:23AM
Re: query index not used   289 Rick James 08/31/2013 03:41PM
optimize request with order by and limit   826 yassine laouija 07/18/2013 05:26AM
Re: optimize request with order by and limit   367 Rick James 07/20/2013 10:25PM
Re: optimize request with order by and limit   346 yassine laouija 07/22/2013 09:46AM
Re: optimize request with order by and limit   302 Rick James 07/23/2013 08:58AM
Re: optimize request with order by and limit   319 yassine laouija 07/26/2013 04:07AM
Re: optimize request with order by and limit   326 Rick James 07/26/2013 11:53PM
Re: optimize request with order by and limit   324 yassine laouija 07/29/2013 04:40AM
Re: optimize request with order by and limit   332 Rick James 08/01/2013 10:39PM
providing a single line for multiple records from a table   588 raja chacham 07/23/2013 09:56AM
Re: providing a single line for multiple records from a table   310 Rick James 07/24/2013 09:08AM
Optimize Inner Join With WHERE BETWEEN dates   1,027 Anthony Galano 05/21/2013 07:32PM
Re: Optimize Inner Join With WHERE BETWEEN dates   472 Rick James 05/22/2013 06:41PM
Re: Optimize Inner Join With WHERE BETWEEN dates   492 Anthony Galano 05/24/2013 12:40PM
Re: Optimize Inner Join With WHERE BETWEEN dates   414 Rick James 05/25/2013 11:43AM
Re: Optimize Inner Join With WHERE BETWEEN dates   384 Anthony Galano 05/30/2013 05:30PM
Re: Optimize Inner Join With WHERE BETWEEN dates   375 Rick James 06/02/2013 01:15PM
Re: Optimize Inner Join With WHERE BETWEEN dates   399 Anthony Galano 06/03/2013 05:02PM
Re: Optimize Inner Join With WHERE BETWEEN dates   644 Rick James 06/04/2013 11:49PM
Query optimization   849 Jan Kowalski 05/10/2013 05:35AM
Re: Query optimization   397 Rick James 05/12/2013 08:42PM
Re: Query optimization   385 Jan Kowalski 05/15/2013 06:45AM
Re: Query optimization   379 Jan Kowalski 05/15/2013 08:35AM
Re: Query optimization   344 Rick James 05/16/2013 08:18AM
Re: Query optimization   402 Jan Kowalski 05/17/2013 03:52AM
Re: Query optimization   371 Rick James 05/17/2013 11:47PM
Re: Query optimization   364 Jan Kowalski 05/21/2013 08:51AM
Re: Query optimization   374 Jan Kowalski 05/22/2013 08:08AM
MySQL Optimizer: When is a Subquery Executed?   667 Edwin Desouza 05/02/2013 10:05AM
Index optimized left join with group by   1,150 Michal Kurgan 03/11/2013 05:41PM
Re: Index optimized left join with group by   495 Øystein Grøvlen 03/12/2013 04:16AM
Select last row that is less than or equal to a date   2,702 David Marcus 01/23/2013 06:35PM
Re: Select last row that is less than or equal to a date   736 Rick James 01/24/2013 10:27PM
Re: Select last row that is less than or equal to a date   708 David Marcus 01/26/2013 09:35AM
Re: Select last row that is less than or equal to a date   620 Rick James 01/27/2013 10:19AM
Re: Select last row that is less than or equal to a date   660 David Marcus 01/27/2013 12:00PM
Re: Select last row that is less than or equal to a date   544 Rick James 01/29/2013 12:51AM
Re: Select last row that is less than or equal to a date   571 David Marcus 01/29/2013 06:28PM
Re: Select last row that is less than or equal to a date   664 Øystein Grøvlen 01/30/2013 04:50AM
Re: Select last row that is less than or equal to a date   622 David Marcus 01/30/2013 05:50PM
Re: Select last row that is less than or equal to a date   555 Øystein Grøvlen 02/01/2013 06:03AM
Re: Select last row that is less than or equal to a date   609 David Marcus 02/02/2013 07:14AM
Re: Select last row that is less than or equal to a date   564 Øystein Grøvlen 02/02/2013 01:49PM
Re: Select last row that is less than or equal to a date   580 David Marcus 02/02/2013 02:25PM
Re: Select last row that is less than or equal to a date   545 Øystein Grøvlen 02/03/2013 05:58AM
Re: Select last row that is less than or equal to a date   580 David Marcus 02/03/2013 10:04AM
Re: Select last row that is less than or equal to a date   614 Rick James 02/03/2013 10:43AM
Re: Select last row that is less than or equal to a date   739 David Marcus 02/03/2013 12:33PM
Re: Select last row that is less than or equal to a date   606 Rick James 02/03/2013 02:59PM
Re: Select last row that is less than or equal to a date   660 David Marcus 02/03/2013 03:35PM
Re: Select last row that is less than or equal to a date   584 Rick James 02/03/2013 04:02PM
Re: Select last row that is less than or equal to a date   618 David Marcus 02/03/2013 04:15PM
Very slow query, help please   959 Jaume Roca 01/29/2013 10:18AM
Re: Very slow query, help please   573 Øystein Grøvlen 01/30/2013 05:12AM
Re: Very slow query, help please   573 Rick James 01/30/2013 08:38AM
Re: Very slow query, help please   600 Jaume Roca 01/30/2013 09:05AM
MySQL 5.6: IN Subqueries Are Optimized away   857 Edwin Desouza 01/29/2013 01:08PM
CPU load very very high !!!!, Please assist !!   3,555 Sayed Ali 01/22/2013 06:49AM
Re: CPU load very very high !!!!, Please assist !!   1,341 Rick James 01/22/2013 11:32PM
New EXPLAIN Features in MySQL 5.6 – FORMAT=JSON actually adds more information!   952 Edwin Desouza 01/22/2013 05:58PM
Can we expect an enhancement for derived table merge optimization?   1,606 Michael Hogue 01/04/2013 12:04PM
Re: Can we expect an enhancement for derived table merge optimization?   596 Rick James 01/07/2013 10:50PM
Re: Can we expect an enhancement for derived table merge optimization?   794 Roy Lyseng 01/11/2013 09:18AM
Re: Can we expect an enhancement for derived table merge optimization?   583 Rick James 01/13/2013 12:24PM
Re: Can we expect an enhancement for derived table merge optimization?   629 Roy Lyseng 01/14/2013 08:43AM
Re: Can we expect an enhancement for derived table merge optimization?   545 Rick James 01/14/2013 09:54AM
Re: Can we expect an enhancement for derived table merge optimization?   561 Roy Lyseng 01/15/2013 06:15AM
Re: Can we expect an enhancement for derived table merge optimization?   537 Roy Lyseng 01/11/2013 08:51AM
How to best optimize MYSQL Database   1,254 Muhammad Usman 12/10/2012 03:45AM
Re: How to best optimize MYSQL Database   597 Rick James 12/21/2012 12:49PM
mysql subquery query optimization question   1,235 Yong Yim 01/12/2013 09:24AM
Re: mysql subquery query optimization question   569 Rick James 01/13/2013 11:30AM
Create a New Datatype   1,124 Andy Gurzynski 01/06/2013 01:00AM
Re: Create a New Datatype   530 Rick James 01/07/2013 11:01PM
MySQL Optimizer: InnoDB extended secondary keys   1,135 Edwin Desouza 12/21/2012 12:12PM
Optimizer for innodb does not reduce "data_free"   1,842 Sebastian Schött 12/06/2012 03:39AM
Re: Optimizer for innodb does not reduce "data_free"   797 Rick James 12/08/2012 01:33PM
Complex query - need advise   1,303 chris boer 11/03/2012 04:16PM
Re: Complex query - need advise   633 chris boer 11/03/2012 04:24PM
Re: Complex query - need advise   628 chris boer 11/04/2012 10:05AM
Re: Complex query - need advise   903 Rick James 11/05/2012 11:12AM
Follow up on "Query Execution Plan"   1,233 Chris Slominski 10/24/2012 11:59AM
Re: Follow up on "Query Execution Plan"   651 Chris Slominski 10/25/2012 11:14AM
Re: Follow up on "Query Execution Plan"   591 Chris Slominski 10/25/2012 06:15AM
JOIN query too slow   1,342 N. Kovac 10/13/2012 11:52AM
Re: JOIN query too slow   616 Peter Brawley 10/14/2012 10:26AM
Re: JOIN query too slow   605 Rick James 10/16/2012 07:48PM
bulk update very slow   2,907 james che 09/25/2012 02:51PM
Re: bulk update very slow   1,061 james che 09/26/2012 02:58PM
Re: bulk update very slow   960 Rick James 09/27/2012 08:19PM
Re: bulk update very slow   1,096 Jørgen Løland 09/27/2012 12:01PM
Why Query Cache Actived Returns Wrong Results?   1,286 Daniel Estrada 09/22/2012 08:57PM
Re: Why Query Cache Actived Returns Wrong Results?   729 Rick James 09/23/2012 03:46PM
Re: Why Query Cache Actived Returns Wrong Results?   795 Daniel Estrada 09/23/2012 08:24PM
Re: Why Query Cache Actived Returns Wrong Results?   635 Rick James 09/24/2012 11:43PM
Join? Union? I am so lost.   1,235 Hank Reardon 09/17/2012 09:09AM
Re: Join? Union? I am so lost.   601 Rick James 09/18/2012 07:48AM
How make indexes work with group by statement   1,208 Adnan Raza 09/13/2012 12:48AM
Re: How make indexes work with group by statement   631 Rick James 09/15/2012 10:34PM
Re: How make indexes work with group by statement   648 Jørgen Løland 09/13/2012 01:50AM
Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27   1,369 Dominik Bieringer 09/05/2012 02:57AM
Re: Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27   648 Rick James 09/06/2012 10:42PM
Re: Query Optimizer Problem - OrderBy - 5.0.51 to 5.5.27   660 Øystein Grøvlen 09/06/2012 04:32AM
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