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Subject Views Written By Posted
Sticky:  MySQL Parser (1 Posts)   379 Edwin Desouza 04/03/2014 03:31PM
Sticky:  MySQL Optimizer: Features in MySQL 5.7 (1 Posts)   1,744 Edwin Desouza 12/18/2012 11:38AM
Sticky:  MySQL EXPLAIN (1 Posts)   2,463 Edwin Desouza 07/10/2012 10:32AM
Sticky:  MySQL Optimizer: Blogs (1 Posts)   7,831 Edwin DeSouza 04/28/2007 06:20PM
Need help to create index on join statments   82 Neil Sorathia 10/08/2014 06:24PM
Re: Need help to create index on join statments   16 Neil Sorathia 10/09/2014 09:46AM
Re: Need help to create index on join statments   19 Rick James 10/11/2014 01:37PM
Better Performance for JOINs Not Using Indexes   73 Edwin Desouza 10/03/2014 01:48PM
A Multi-Table Trick to Speed up Single-Table UPDATE/DELETE Statements   60 Edwin Desouza 10/03/2014 01:47PM
MySQL 5.7: Optimizer Hints + Query Rewrite   63 Edwin Desouza 10/01/2014 08:53AM
Intermediate Query Results   110 Ashwini Singh 09/12/2014 08:37AM
Re: Intermediate Query Results   41 Rick James 09/13/2014 09:23PM
Re: Intermediate Query Results   59 Øystein Grøvlen 09/15/2014 05:42AM
All records scanning using "LIKe" and "IN" operaters   257 ch srinivas 06/28/2014 01:43PM
Re: All records scanning using "LIKe" and "IN" operaters   97 Peter Brawley 06/28/2014 02:22PM
Re: All records scanning using "LIKe" and "IN" operaters   48 Øystein Grøvlen 08/28/2014 03:47PM
Help me to optimize my sql query   144 GAURAV JAIN 08/21/2014 07:29AM
Re: Help me to optimize my sql query   59 Rick James 08/22/2014 06:50AM
How could this SQL be optimized?   311 feng guo 05/29/2014 11:26PM
Re: How could this SQL be optimized?   135 Øystein Grøvlen 05/30/2014 02:41AM
Re: How could this SQL be optimized?   145 feng guo 05/30/2014 02:46AM
Re: How could this SQL be optimized?   55 Marion Gordon 08/21/2014 11:03PM
Re: How could this SQL be optimized?   50 Øystein Grøvlen 08/22/2014 01:54AM
simple uses of order by datetime keep causing 'using filesort'   158 park albert 08/19/2014 05:44PM
Re: simple uses of order by datetime keep causing 'using filesort'   61 Rick James 08/20/2014 07:34PM
Expland and slow-query don't agree   187 Aram Mirzadeh 08/03/2014 06:24AM
Re: Expland and slow-query don't agree   67 Rick James 08/04/2014 01:23PM
Query not using index sporadically   280 Vinay NP 06/13/2014 07:51AM
Re: Query not using index sporadically   102 Rick James 06/18/2014 02:48PM
[HELP] Subquery Optimization   263 Pinoy Central 05/28/2014 08:56PM
MySQL 5.7: Re-factoring internals of Prepared Statements   229 Edwin Desouza 05/15/2014 12:29PM
BETWEEN a DATE and a hard place   353 Gerald Bayles 04/16/2014 02:07PM
Re: BETWEEN a DATE and a hard place   161 Rick James 04/18/2014 05:19PM
Re: BETWEEN a DATE and a hard place   155 Gerald Bayles 04/21/2014 08:36AM
Re: BETWEEN a DATE and a hard place   154 Rick James 04/24/2014 08:20PM
Re: BETWEEN a DATE and a hard place   141 Gerald Bayles 04/25/2014 06:36AM
Re: BETWEEN a DATE and a hard place   134 Rick James 04/26/2014 05:46AM
Re: BETWEEN a DATE and a hard place   144 Gerald Bayles 04/28/2014 07:27AM
Re: BETWEEN a DATE and a hard place   136 Gerald Bayles 05/01/2014 09:41AM
Re: BETWEEN a DATE and a hard place   148 Rick James 05/02/2014 11:39AM
MySQL Optimizer: Features in MySQL 5.7   295 Edwin Desouza 04/22/2014 10:03AM
Access mysql blob data from stored procedure   374 Kalpesh g 04/15/2014 04:38AM
Re: Access mysql blob data from stored procedure   160 Peter Brawley 04/15/2014 11:14AM
PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   489 Andre Mikulec 03/05/2014 05:38PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   213 Rick James 03/06/2014 11:21PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   219 Rick James 03/06/2014 11:23PM
Explain estimate completely wrong for range when partitioned by day   565 Blake Harps 02/13/2014 01:23PM
Re: Explain estimate completely wrong for range when partitioned by day   233 Øystein Grøvlen 02/14/2014 01:29AM
Re: Explain estimate completely wrong for range when partitioned by day   241 Mattias Jonsson 02/14/2014 09:44AM
Re: Explain estimate completely wrong for range when partitioned by day   232 Blake Harps 02/14/2014 03:07PM
Re: Explain estimate completely wrong for range when partitioned by day   237 Blake Harps 02/14/2014 02:58PM
Re: Explain estimate completely wrong for range when partitioned by day   233 Edwin Desouza 02/15/2014 12:39PM
Re: Explain estimate completely wrong for range when partitioned by day   233 Rick James 02/15/2014 12:42PM
Re: Explain estimate completely wrong for range when partitioned by day   191 Blake Harps 03/04/2014 12:27PM
Re: Explain estimate completely wrong for range when partitioned by day   233 Mattias Jonsson 02/17/2014 04:29PM
Subquery with range uses filesort   852 David Marcus 11/16/2013 02:42PM
Re: Subquery with range uses filesort   297 Rick James 11/17/2013 07:42PM
Re: Subquery with range uses filesort   271 David Marcus 11/17/2013 08:01PM
Re: Subquery with range uses filesort   290 Rick James 11/18/2013 04:33PM
Re: Subquery with range uses filesort   308 David Marcus 11/18/2013 07:54PM
Re: Subquery with range uses filesort   284 Rick James 11/19/2013 04:10PM
Re: Subquery with range uses filesort   290 David Marcus 11/19/2013 08:36PM
Re: Subquery with range uses filesort   305 Rick James 11/21/2013 02:55PM
Re: Subquery with range uses filesort   285 David Marcus 12/05/2013 03:46PM
Re: Subquery with range uses filesort   255 Rick James 12/07/2013 02:10PM
Re: Subquery with range uses filesort   251 David Marcus 12/09/2013 06:08PM
Re: Subquery with range uses filesort   266 David Marcus 12/14/2013 09:51PM
Re: Subquery with range uses filesort   248 David Marcus 12/14/2013 10:17PM
Re: Subquery with range uses filesort   270 Rick James 12/15/2013 11:29PM
Re: Subquery with range uses filesort   302 David Marcus 12/17/2013 06:58PM
Re: Subquery with range uses filesort   248 Rick James 12/18/2013 05:49PM
Re: Subquery with range uses filesort   237 David Marcus 12/18/2013 08:28PM
Re: Subquery with range uses filesort   266 Rick James 12/19/2013 10:13PM
Re: Subquery with range uses filesort   254 David Marcus 12/19/2013 10:28PM
Re: Subquery with range uses filesort   237 Rick James 12/20/2013 07:06PM
Re: Subquery with range uses filesort   260 David Marcus 12/21/2013 07:36AM
Re: Subquery with range uses filesort   268 Rick James 12/22/2013 10:01AM
Re: Subquery with range uses filesort   288 David Marcus 12/22/2013 10:45AM
Re: Subquery with range uses filesort   260 David Marcus 12/25/2013 09:30PM
Optimizer executes inperformant subquery first   764 Martin Kirchner 12/06/2013 07:12AM
Re: Optimizer executes inperformant subquery first   260 Rick James 12/07/2013 02:30PM
Re: Optimizer executes inperformant subquery first   303 Martin Kirchner 12/07/2013 03:49PM
Re: Optimizer executes inperformant subquery first   385 Øystein Grøvlen 12/09/2013 09:48AM
Re: Optimizer executes inperformant subquery first   253 Martin Kirchner 12/18/2013 03:04AM
Re: Optimizer executes inperformant subquery first   252 Øystein Grøvlen 12/19/2013 02:45AM
Re: Optimizer executes inperformant subquery first   263 Martin Kirchner 12/20/2013 02:24AM
Re: Optimizer executes inperformant subquery first   254 Øystein Grøvlen 12/23/2013 08:07AM
Re: Optimizer executes inperformant subquery first   249 Rick James 12/23/2013 01:11PM
Re: Optimizer executes inperformant subquery first   252 Martin Kirchner 12/18/2013 05:16AM
Re: Optimizer executes inperformant subquery first   269 Rick James 12/18/2013 06:49PM
Re: Optimizer executes inperformant subquery first   242 Øystein Grøvlen 12/19/2013 02:49AM
my.cnf   603 Juan Medina 10/27/2013 02:08PM
Re: my.cnf   276 Rick James 10/29/2013 07:12PM
my.cnf optimization please help   907 Ivan Kratunkov 10/28/2013 03:39AM
Re: my.cnf optimization please help   353 Rick James 10/29/2013 07:10PM
MySQL Optimizer: Features in MySQL 5.7   494 Edwin Desouza 10/18/2013 09:33AM
I need help in optimzing a order by clause in a join query   612 George Maharis 10/08/2013 12:09PM
Re: I need help in optimzing a order by clause in a join query   321 Rick James 10/10/2013 09:34PM
Re: I need help in optimzing a order by clause in a join query   295 George Maharis 10/12/2013 02:07PM
Re: I need help in optimzing a order by clause in a join query   275 Rick James 10/16/2013 08:36PM
MySQL My.cnf Config Help   609 Mathieu Louis 10/03/2013 09:32PM
Very slow dependent subquery   761 patrick canarelli 09/18/2013 03:06AM
Re: Very slow dependent subquery   409 Øystein Grøvlen 09/18/2013 07:06AM
Re: Very slow dependent subquery   359 patrick canarelli 09/18/2013 07:51AM
Re: Very slow dependent subquery   320 Øystein Grøvlen 09/18/2013 02:57PM
Re: Very slow dependent subquery   351 Peter Brawley 09/18/2013 02:13PM
Re: Very slow dependent subquery   345 patrick canarelli 09/18/2013 03:10PM
Re: Very slow dependent subquery   346 Rick James 09/24/2013 10:04PM
Re: Very slow dependent subquery   401 patrick canarelli 09/25/2013 12:53AM
big database +1 million rows/days   760 khaoula el hammoumi 09/11/2013 04:06AM
Re: big database +1 million rows/days   350 khaoula el hammoumi 09/12/2013 01:37AM
Re: big database +1 million rows/days   367 Rick James 09/13/2013 10:59PM
Optimize query join with 25,000 records   732 Andrea Presazzi 08/26/2013 02:27AM
Re: Optimize query join with 25,000 records   347 Rick James 08/31/2013 04:19PM
Index not used for JOIN on compound key plus WHERE range filter   1,101 Chad B 08/15/2013 09:24AM
Re: Index not used for JOIN on compound key plus WHERE range filter   502 Chad B 08/15/2013 10:44AM
Re: Index not used for JOIN on compound key plus WHERE range filter   399 Rick James 08/31/2013 04:13PM
query index not used   596 Adrian Petre 08/15/2013 05:23AM
Re: query index not used   330 Rick James 08/31/2013 03:41PM
optimize request with order by and limit   944 yassine laouija 07/18/2013 05:26AM
Re: optimize request with order by and limit   417 Rick James 07/20/2013 10:25PM
Re: optimize request with order by and limit   402 yassine laouija 07/22/2013 09:46AM
Re: optimize request with order by and limit   348 Rick James 07/23/2013 08:58AM
Re: optimize request with order by and limit   369 yassine laouija 07/26/2013 04:07AM
Re: optimize request with order by and limit   391 Rick James 07/26/2013 11:53PM
Re: optimize request with order by and limit   383 yassine laouija 07/29/2013 04:40AM
Re: optimize request with order by and limit   389 Rick James 08/01/2013 10:39PM
providing a single line for multiple records from a table   674 raja chacham 07/23/2013 09:56AM
Re: providing a single line for multiple records from a table   359 Rick James 07/24/2013 09:08AM
Optimize Inner Join With WHERE BETWEEN dates   1,166 Anthony Galano 05/21/2013 07:32PM
Re: Optimize Inner Join With WHERE BETWEEN dates   541 Rick James 05/22/2013 06:41PM
Re: Optimize Inner Join With WHERE BETWEEN dates   547 Anthony Galano 05/24/2013 12:40PM
Re: Optimize Inner Join With WHERE BETWEEN dates   483 Rick James 05/25/2013 11:43AM
Re: Optimize Inner Join With WHERE BETWEEN dates   439 Anthony Galano 05/30/2013 05:30PM
Re: Optimize Inner Join With WHERE BETWEEN dates   433 Rick James 06/02/2013 01:15PM
Re: Optimize Inner Join With WHERE BETWEEN dates   461 Anthony Galano 06/03/2013 05:02PM
Re: Optimize Inner Join With WHERE BETWEEN dates   761 Rick James 06/04/2013 11:49PM
Query optimization   974 Jan Kowalski 05/10/2013 05:35AM
Re: Query optimization   453 Rick James 05/12/2013 08:42PM
Re: Query optimization   447 Jan Kowalski 05/15/2013 06:45AM
Re: Query optimization   434 Jan Kowalski 05/15/2013 08:35AM
Re: Query optimization   403 Rick James 05/16/2013 08:18AM
Re: Query optimization   452 Jan Kowalski 05/17/2013 03:52AM
Re: Query optimization   435 Rick James 05/17/2013 11:47PM
Re: Query optimization   415 Jan Kowalski 05/21/2013 08:51AM
Re: Query optimization   432 Jan Kowalski 05/22/2013 08:08AM
MySQL Optimizer: When is a Subquery Executed?   744 Edwin Desouza 05/02/2013 10:05AM
Index optimized left join with group by   1,272 Michal Kurgan 03/11/2013 05:41PM
Re: Index optimized left join with group by   543 Øystein Grøvlen 03/12/2013 04:16AM
Select last row that is less than or equal to a date   3,001 David Marcus 01/23/2013 06:35PM
Re: Select last row that is less than or equal to a date   804 Rick James 01/24/2013 10:27PM
Re: Select last row that is less than or equal to a date   786 David Marcus 01/26/2013 09:35AM
Re: Select last row that is less than or equal to a date   682 Rick James 01/27/2013 10:19AM
Re: Select last row that is less than or equal to a date   717 David Marcus 01/27/2013 12:00PM
Re: Select last row that is less than or equal to a date   611 Rick James 01/29/2013 12:51AM
Re: Select last row that is less than or equal to a date   646 David Marcus 01/29/2013 06:28PM
Re: Select last row that is less than or equal to a date   749 Øystein Grøvlen 01/30/2013 04:50AM
Re: Select last row that is less than or equal to a date   680 David Marcus 01/30/2013 05:50PM
Re: Select last row that is less than or equal to a date   623 Øystein Grøvlen 02/01/2013 06:03AM
Re: Select last row that is less than or equal to a date   656 David Marcus 02/02/2013 07:14AM
Re: Select last row that is less than or equal to a date   627 Øystein Grøvlen 02/02/2013 01:49PM
Re: Select last row that is less than or equal to a date   641 David Marcus 02/02/2013 02:25PM
Re: Select last row that is less than or equal to a date   609 Øystein Grøvlen 02/03/2013 05:58AM
Re: Select last row that is less than or equal to a date   636 David Marcus 02/03/2013 10:04AM
Re: Select last row that is less than or equal to a date   677 Rick James 02/03/2013 10:43AM
Re: Select last row that is less than or equal to a date   801 David Marcus 02/03/2013 12:33PM
Re: Select last row that is less than or equal to a date   674 Rick James 02/03/2013 02:59PM
Re: Select last row that is less than or equal to a date   706 David Marcus 02/03/2013 03:35PM
Re: Select last row that is less than or equal to a date   652 Rick James 02/03/2013 04:02PM
Re: Select last row that is less than or equal to a date   670 David Marcus 02/03/2013 04:15PM
Very slow query, help please   1,044 Jaume Roca 01/29/2013 10:18AM
Re: Very slow query, help please   619 Øystein Grøvlen 01/30/2013 05:12AM
Re: Very slow query, help please   615 Rick James 01/30/2013 08:38AM
Re: Very slow query, help please   651 Jaume Roca 01/30/2013 09:05AM
MySQL 5.6: IN Subqueries Are Optimized away   931 Edwin Desouza 01/29/2013 01:08PM
CPU load very very high !!!!, Please assist !!   3,859 Sayed Ali 01/22/2013 06:49AM
Re: CPU load very very high !!!!, Please assist !!   1,445 Rick James 01/22/2013 11:32PM
New EXPLAIN Features in MySQL 5.6 – FORMAT=JSON actually adds more information!   1,035 Edwin Desouza 01/22/2013 05:58PM
Can we expect an enhancement for derived table merge optimization?   1,749 Michael Hogue 01/04/2013 12:04PM
Re: Can we expect an enhancement for derived table merge optimization?   653 Rick James 01/07/2013 10:50PM
Re: Can we expect an enhancement for derived table merge optimization?   871 Roy Lyseng 01/11/2013 09:18AM
Re: Can we expect an enhancement for derived table merge optimization?   633 Rick James 01/13/2013 12:24PM
Re: Can we expect an enhancement for derived table merge optimization?   701 Roy Lyseng 01/14/2013 08:43AM
Re: Can we expect an enhancement for derived table merge optimization?   598 Rick James 01/14/2013 09:54AM
Re: Can we expect an enhancement for derived table merge optimization?   618 Roy Lyseng 01/15/2013 06:15AM
Re: Can we expect an enhancement for derived table merge optimization?   587 Roy Lyseng 01/11/2013 08:51AM
How to best optimize MYSQL Database   1,328 Muhammad Usman 12/10/2012 03:45AM
Re: How to best optimize MYSQL Database   646 Rick James 12/21/2012 12:49PM
mysql subquery query optimization question   1,324 Yong Yim 01/12/2013 09:24AM
Re: mysql subquery query optimization question   613 Rick James 01/13/2013 11:30AM
Create a New Datatype   1,199 Andy Gurzynski 01/06/2013 01:00AM
Re: Create a New Datatype   575 Rick James 01/07/2013 11:01PM
MySQL Optimizer: InnoDB extended secondary keys   1,206 Edwin Desouza 12/21/2012 12:12PM
Optimizer for innodb does not reduce "data_free"   2,003 Sebastian Schött 12/06/2012 03:39AM
Re: Optimizer for innodb does not reduce "data_free"   859 Rick James 12/08/2012 01:33PM
Complex query - need advise   1,386 chris boer 11/03/2012 04:16PM
Re: Complex query - need advise   684 chris boer 11/03/2012 04:24PM
Re: Complex query - need advise   670 chris boer 11/04/2012 10:05AM
Re: Complex query - need advise   954 Rick James 11/05/2012 11:12AM
Follow up on "Query Execution Plan"   1,313 Chris Slominski 10/24/2012 11:59AM
Re: Follow up on "Query Execution Plan"   699 Chris Slominski 10/25/2012 11:14AM
Re: Follow up on "Query Execution Plan"   633 Chris Slominski 10/25/2012 06:15AM
JOIN query too slow   1,423 N. Kovac 10/13/2012 11:52AM
Re: JOIN query too slow   667 Peter Brawley 10/14/2012 10:26AM
Re: JOIN query too slow   652 Rick James 10/16/2012 07:48PM
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