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Subject Views Written By Posted
Better Performance for JOINs Not Using Indexes   1,470 Edwin Desouza 10/03/2014 01:48PM
A Multi-Table Trick to Speed up Single-Table UPDATE/DELETE Statements   1,627 Edwin Desouza 10/03/2014 01:47PM
MySQL 5.7: Optimizer Hints + Query Rewrite   1,581 Edwin Desouza 10/01/2014 08:53AM
Intermediate Query Results   1,913 Ashwini Singh 09/12/2014 08:37AM
Re: Intermediate Query Results   886 Rick James 09/13/2014 09:23PM
Re: Intermediate Query Results   1,062 Øystein Grøvlen 09/15/2014 05:42AM
All records scanning using "LIKe" and "IN" operaters   1,704 ch srinivas 06/28/2014 01:43PM
Re: All records scanning using "LIKe" and "IN" operaters   868 Peter Brawley 06/28/2014 02:22PM
Re: All records scanning using "LIKe" and "IN" operaters   798 Øystein Grøvlen 08/28/2014 03:47PM
Help me to optimize my sql query   1,475 GAURAV JAIN 08/21/2014 07:29AM
Re: Help me to optimize my sql query   785 Rick James 08/22/2014 06:50AM
How could this SQL be optimized?   1,744 feng guo 05/29/2014 11:26PM
Re: How could this SQL be optimized?   875 Øystein Grøvlen 05/30/2014 02:41AM
Re: How could this SQL be optimized?   936 feng guo 05/30/2014 02:46AM
Re: How could this SQL be optimized?   760 Marion Gordon 08/21/2014 11:03PM
Re: How could this SQL be optimized?   746 Øystein Grøvlen 08/22/2014 01:54AM
simple uses of order by datetime keep causing 'using filesort'   1,728 park albert 08/19/2014 05:44PM
Re: simple uses of order by datetime keep causing 'using filesort'   882 Rick James 08/20/2014 07:34PM
Expland and slow-query don't agree   1,467 Aram Mirzadeh 08/03/2014 06:24AM
Re: Expland and slow-query don't agree   750 Rick James 08/04/2014 01:23PM
Query not using index sporadically   1,817 Vinay NP 06/13/2014 07:51AM
Re: Query not using index sporadically   866 Rick James 06/18/2014 02:48PM
[HELP] Subquery Optimization   1,725 Pinoy Central 05/28/2014 08:56PM
MySQL 5.7: Re-factoring internals of Prepared Statements   1,390 Edwin Desouza 05/15/2014 12:29PM
BETWEEN a DATE and a hard place   1,670 Gerald Bayles 04/16/2014 02:07PM
Re: BETWEEN a DATE and a hard place   829 Rick James 04/18/2014 05:19PM
Re: BETWEEN a DATE and a hard place   876 Gerald Bayles 04/21/2014 08:36AM
Re: BETWEEN a DATE and a hard place   890 Rick James 04/24/2014 08:20PM
Re: BETWEEN a DATE and a hard place   1,003 Gerald Bayles 04/25/2014 06:36AM
Re: BETWEEN a DATE and a hard place   809 Rick James 04/26/2014 05:46AM
Re: BETWEEN a DATE and a hard place   843 Gerald Bayles 04/28/2014 07:27AM
Re: BETWEEN a DATE and a hard place   877 Gerald Bayles 05/01/2014 09:41AM
Re: BETWEEN a DATE and a hard place   930 Rick James 05/02/2014 11:39AM
MySQL Optimizer: Features in MySQL 5.7   1,440 Edwin Desouza 04/22/2014 10:03AM
Access mysql blob data from stored procedure   2,061 Kalpesh g 04/15/2014 04:38AM
Re: Access mysql blob data from stored procedure   875 Peter Brawley 04/15/2014 11:14AM
PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   2,175 Andre Mikulec 03/05/2014 05:38PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   1,050 Rick James 03/06/2014 11:21PM
Re: PARTITION table ADD INDEX ERROR 1041 (HY000) Out of memory   981 Rick James 03/06/2014 11:23PM
Explain estimate completely wrong for range when partitioned by day   2,439 Blake Harps 02/13/2014 01:23PM
Re: Explain estimate completely wrong for range when partitioned by day   965 Øystein Grøvlen 02/14/2014 01:29AM
Re: Explain estimate completely wrong for range when partitioned by day   1,085 Mattias Jonsson 02/14/2014 09:44AM
Re: Explain estimate completely wrong for range when partitioned by day   1,011 Blake Harps 02/14/2014 03:07PM
Re: Explain estimate completely wrong for range when partitioned by day   966 Blake Harps 02/14/2014 02:58PM
Re: Explain estimate completely wrong for range when partitioned by day   958 Edwin Desouza 02/15/2014 12:39PM
Re: Explain estimate completely wrong for range when partitioned by day   1,004 Rick James 02/15/2014 12:42PM
Re: Explain estimate completely wrong for range when partitioned by day   982 Blake Harps 03/04/2014 12:27PM
Re: Explain estimate completely wrong for range when partitioned by day   1,046 Mattias Jonsson 02/17/2014 04:29PM
Subquery with range uses filesort   2,720 David Marcus 11/16/2013 02:42PM
Re: Subquery with range uses filesort   1,109 Rick James 11/17/2013 07:42PM
Re: Subquery with range uses filesort   1,041 David Marcus 11/17/2013 08:01PM
Re: Subquery with range uses filesort   1,054 Rick James 11/18/2013 04:33PM
Re: Subquery with range uses filesort   1,502 David Marcus 11/18/2013 07:54PM
Re: Subquery with range uses filesort   1,130 Rick James 11/19/2013 04:10PM
Re: Subquery with range uses filesort   1,140 David Marcus 11/19/2013 08:36PM
Re: Subquery with range uses filesort   1,210 Rick James 11/21/2013 02:55PM
Re: Subquery with range uses filesort   1,395 David Marcus 12/05/2013 03:46PM
Re: Subquery with range uses filesort   1,025 Rick James 12/07/2013 02:10PM
Re: Subquery with range uses filesort   1,051 David Marcus 12/09/2013 06:08PM
Re: Subquery with range uses filesort   1,063 David Marcus 12/14/2013 09:51PM
Re: Subquery with range uses filesort   1,026 David Marcus 12/14/2013 10:17PM
Re: Subquery with range uses filesort   1,102 Rick James 12/15/2013 11:29PM
Re: Subquery with range uses filesort   1,117 David Marcus 12/17/2013 06:58PM
Re: Subquery with range uses filesort   1,034 Rick James 12/18/2013 05:49PM
Re: Subquery with range uses filesort   1,062 David Marcus 12/18/2013 08:28PM
Re: Subquery with range uses filesort   1,129 Rick James 12/19/2013 10:13PM
Re: Subquery with range uses filesort   1,068 David Marcus 12/19/2013 10:28PM
Re: Subquery with range uses filesort   986 Rick James 12/20/2013 07:06PM
Re: Subquery with range uses filesort   1,067 David Marcus 12/21/2013 07:36AM
Re: Subquery with range uses filesort   1,096 Rick James 12/22/2013 10:01AM
Re: Subquery with range uses filesort   1,147 David Marcus 12/22/2013 10:45AM
Re: Subquery with range uses filesort   1,014 David Marcus 12/25/2013 09:30PM
Optimizer executes inperformant subquery first   2,437 Martin Kirchner 12/06/2013 07:12AM
Re: Optimizer executes inperformant subquery first   980 Rick James 12/07/2013 02:30PM
Re: Optimizer executes inperformant subquery first   1,243 Martin Kirchner 12/07/2013 03:49PM
Re: Optimizer executes inperformant subquery first   1,380 Øystein Grøvlen 12/09/2013 09:48AM
Re: Optimizer executes inperformant subquery first   1,098 Martin Kirchner 12/18/2013 03:04AM
Re: Optimizer executes inperformant subquery first   1,104 Øystein Grøvlen 12/19/2013 02:45AM
Re: Optimizer executes inperformant subquery first   971 Martin Kirchner 12/20/2013 02:24AM
Re: Optimizer executes inperformant subquery first   954 Øystein Grøvlen 12/23/2013 08:07AM
Re: Optimizer executes inperformant subquery first   991 Rick James 12/23/2013 01:11PM
Re: Optimizer executes inperformant subquery first   1,096 Martin Kirchner 12/18/2013 05:16AM
Re: Optimizer executes inperformant subquery first   1,080 Rick James 12/18/2013 06:49PM
Re: Optimizer executes inperformant subquery first   1,017 Øystein Grøvlen 12/19/2013 02:49AM
my.cnf   1,872 Juan Medina 10/27/2013 02:08PM
Re: my.cnf   928 Rick James 10/29/2013 07:12PM
my.cnf optimization please help   2,693 Ivan Kratunkov 10/28/2013 03:39AM
Re: my.cnf optimization please help   1,039 Rick James 10/29/2013 07:10PM
MySQL Optimizer: Features in MySQL 5.7   1,553 Edwin Desouza 10/18/2013 09:33AM
I need help in optimzing a order by clause in a join query   1,720 George Maharis 10/08/2013 12:09PM
Re: I need help in optimzing a order by clause in a join query   957 Rick James 10/10/2013 09:34PM
Re: I need help in optimzing a order by clause in a join query   947 George Maharis 10/12/2013 02:07PM
Re: I need help in optimzing a order by clause in a join query   947 Rick James 10/16/2013 08:36PM
MySQL My.cnf Config Help   1,889 Mathieu Louis 10/03/2013 09:32PM
Very slow dependent subquery   2,044 patrick canarelli 09/18/2013 03:06AM
Re: Very slow dependent subquery   1,198 Øystein Grøvlen 09/18/2013 07:06AM
Re: Very slow dependent subquery   1,082 patrick canarelli 09/18/2013 07:51AM
Re: Very slow dependent subquery   1,104 Øystein Grøvlen 09/18/2013 02:57PM
Re: Very slow dependent subquery   1,011 Peter Brawley 09/18/2013 02:13PM
Re: Very slow dependent subquery   1,006 patrick canarelli 09/18/2013 03:10PM
Re: Very slow dependent subquery   1,006 Rick James 09/24/2013 10:04PM
Re: Very slow dependent subquery   1,201 patrick canarelli 09/25/2013 12:53AM
big database +1 million rows/days   2,250 khaoula el hammoumi 09/11/2013 04:06AM
Re: big database +1 million rows/days   995 khaoula el hammoumi 09/12/2013 01:37AM
Re: big database +1 million rows/days   987 Rick James 09/13/2013 10:59PM
Optimize query join with 25,000 records   1,833 Andrea Presazzi 08/26/2013 02:27AM
Re: Optimize query join with 25,000 records   932 Rick James 08/31/2013 04:19PM
Index not used for JOIN on compound key plus WHERE range filter   2,663 Chad B 08/15/2013 09:24AM
Re: Index not used for JOIN on compound key plus WHERE range filter   1,240 Chad B 08/15/2013 10:44AM
Re: Index not used for JOIN on compound key plus WHERE range filter   1,072 Rick James 08/31/2013 04:13PM
query index not used   1,537 Adrian Petre 08/15/2013 05:23AM
Re: query index not used   871 Rick James 08/31/2013 03:41PM
optimize request with order by and limit   2,066 yassine laouija 07/18/2013 05:26AM
Re: optimize request with order by and limit   1,142 Rick James 07/20/2013 10:25PM
Re: optimize request with order by and limit   978 yassine laouija 07/22/2013 09:46AM
Re: optimize request with order by and limit   882 Rick James 07/23/2013 08:58AM
Re: optimize request with order by and limit   938 yassine laouija 07/26/2013 04:07AM
Re: optimize request with order by and limit   966 Rick James 07/26/2013 11:53PM
Re: optimize request with order by and limit   959 yassine laouija 07/29/2013 04:40AM
Re: optimize request with order by and limit   959 Rick James 08/01/2013 10:39PM
providing a single line for multiple records from a table   1,702 raja chacham 07/23/2013 09:56AM
Re: providing a single line for multiple records from a table   835 Rick James 07/24/2013 09:08AM
Optimize Inner Join With WHERE BETWEEN dates   2,753 Anthony Galano 05/21/2013 07:32PM
Re: Optimize Inner Join With WHERE BETWEEN dates   1,267 Rick James 05/22/2013 06:41PM
Re: Optimize Inner Join With WHERE BETWEEN dates   1,179 Anthony Galano 05/24/2013 12:40PM
Re: Optimize Inner Join With WHERE BETWEEN dates   1,149 Rick James 05/25/2013 11:43AM
Re: Optimize Inner Join With WHERE BETWEEN dates   1,037 Anthony Galano 05/30/2013 05:30PM
Re: Optimize Inner Join With WHERE BETWEEN dates   1,090 Rick James 06/02/2013 01:15PM
Re: Optimize Inner Join With WHERE BETWEEN dates   1,143 Anthony Galano 06/03/2013 05:02PM
Re: Optimize Inner Join With WHERE BETWEEN dates   2,083 Rick James 06/04/2013 11:49PM
Query optimization   2,129 Jan Kowalski 05/10/2013 05:35AM
Re: Query optimization   1,072 Rick James 05/12/2013 08:42PM
Re: Query optimization   1,023 Jan Kowalski 05/15/2013 06:45AM
Re: Query optimization   1,018 Jan Kowalski 05/15/2013 08:35AM
Re: Query optimization   1,066 Rick James 05/16/2013 08:18AM
Re: Query optimization   1,008 Jan Kowalski 05/17/2013 03:52AM
Re: Query optimization   1,001 Rick James 05/17/2013 11:47PM
Re: Query optimization   932 Jan Kowalski 05/21/2013 08:51AM
Re: Query optimization   1,011 Jan Kowalski 05/22/2013 08:08AM
MySQL Optimizer: When is a Subquery Executed?   1,571 Edwin Desouza 05/02/2013 10:05AM
Index optimized left join with group by   2,477 Michal Kurgan 03/11/2013 05:41PM
Re: Index optimized left join with group by   1,040 Øystein Grøvlen 03/12/2013 04:16AM
Select last row that is less than or equal to a date   5,286 David Marcus 01/23/2013 06:35PM
Re: Select last row that is less than or equal to a date   1,409 Rick James 01/24/2013 10:27PM
Re: Select last row that is less than or equal to a date   1,401 David Marcus 01/26/2013 09:35AM
Re: Select last row that is less than or equal to a date   1,240 Rick James 01/27/2013 10:19AM
Re: Select last row that is less than or equal to a date   1,228 David Marcus 01/27/2013 12:00PM
Re: Select last row that is less than or equal to a date   1,155 Rick James 01/29/2013 12:51AM
Re: Select last row that is less than or equal to a date   1,131 David Marcus 01/29/2013 06:28PM
Re: Select last row that is less than or equal to a date   1,555 Øystein Grøvlen 01/30/2013 04:50AM
Re: Select last row that is less than or equal to a date   1,240 David Marcus 01/30/2013 05:50PM
Re: Select last row that is less than or equal to a date   1,168 Øystein Grøvlen 02/01/2013 06:03AM
Re: Select last row that is less than or equal to a date   1,234 David Marcus 02/02/2013 07:14AM
Re: Select last row that is less than or equal to a date   1,207 Øystein Grøvlen 02/02/2013 01:49PM
Re: Select last row that is less than or equal to a date   1,227 David Marcus 02/02/2013 02:25PM
Re: Select last row that is less than or equal to a date   1,107 Øystein Grøvlen 02/03/2013 05:58AM
Re: Select last row that is less than or equal to a date   1,163 David Marcus 02/03/2013 10:04AM
Re: Select last row that is less than or equal to a date   1,221 Rick James 02/03/2013 10:43AM
Re: Select last row that is less than or equal to a date   1,682 David Marcus 02/03/2013 12:33PM
Re: Select last row that is less than or equal to a date   1,213 Rick James 02/03/2013 02:59PM
Re: Select last row that is less than or equal to a date   1,254 David Marcus 02/03/2013 03:35PM
Re: Select last row that is less than or equal to a date   1,246 Rick James 02/03/2013 04:02PM
Re: Select last row that is less than or equal to a date   1,279 David Marcus 02/03/2013 04:15PM
Very slow query, help please   2,151 Jaume Roca 01/29/2013 10:18AM
Re: Very slow query, help please   1,153 Øystein Grøvlen 01/30/2013 05:12AM
Re: Very slow query, help please   1,149 Rick James 01/30/2013 08:38AM
Re: Very slow query, help please   1,245 Jaume Roca 01/30/2013 09:05AM
MySQL 5.6: IN Subqueries Are Optimized away   1,673 Edwin Desouza 01/29/2013 01:08PM
CPU load very very high !!!!, Please assist !!   6,553 Sayed Ali 01/22/2013 06:49AM
Re: CPU load very very high !!!!, Please assist !!   2,329 Rick James 01/22/2013 11:32PM
New EXPLAIN Features in MySQL 5.6 – FORMAT=JSON actually adds more information!   1,781 Edwin Desouza 01/22/2013 05:58PM
Can we expect an enhancement for derived table merge optimization?   2,885 Michael Hogue 01/04/2013 12:04PM
Re: Can we expect an enhancement for derived table merge optimization?   1,192 Rick James 01/07/2013 10:50PM
Re: Can we expect an enhancement for derived table merge optimization?   1,560 Roy Lyseng 01/11/2013 09:18AM
Re: Can we expect an enhancement for derived table merge optimization?   1,073 Rick James 01/13/2013 12:24PM
Re: Can we expect an enhancement for derived table merge optimization?   1,159 Roy Lyseng 01/14/2013 08:43AM
Re: Can we expect an enhancement for derived table merge optimization?   1,022 Rick James 01/14/2013 09:54AM
Re: Can we expect an enhancement for derived table merge optimization?   1,105 Roy Lyseng 01/15/2013 06:15AM
Re: Can we expect an enhancement for derived table merge optimization?   1,067 Roy Lyseng 01/11/2013 08:51AM
How to best optimize MYSQL Database   2,034 Muhammad Usman 12/10/2012 03:45AM
Re: How to best optimize MYSQL Database   1,079 Rick James 12/21/2012 12:49PM
mysql subquery query optimization question   2,259 Yong Yim 01/12/2013 09:24AM
Re: mysql subquery query optimization question   1,020 Rick James 01/13/2013 11:30AM
Create a New Datatype   1,912 Andy Gurzynski 01/06/2013 01:00AM
Re: Create a New Datatype   973 Rick James 01/07/2013 11:01PM
MySQL Optimizer: InnoDB extended secondary keys   1,960 Edwin Desouza 12/21/2012 12:12PM
Optimizer for innodb does not reduce "data_free"   3,348 Sebastian Schött 12/06/2012 03:39AM
Re: Optimizer for innodb does not reduce "data_free"   1,365 Rick James 12/08/2012 01:33PM
Complex query - need advise   2,265 chris boer 11/03/2012 04:16PM
Re: Complex query - need advise   1,133 chris boer 11/03/2012 04:24PM
Re: Complex query - need advise   1,050 chris boer 11/04/2012 10:05AM
Re: Complex query - need advise   1,391 Rick James 11/05/2012 11:12AM
Follow up on "Query Execution Plan"   1,904 Chris Slominski 10/24/2012 11:59AM
Re: Follow up on "Query Execution Plan"   1,021 Chris Slominski 10/25/2012 11:14AM
Re: Follow up on "Query Execution Plan"   862 Chris Slominski 10/25/2012 06:15AM
JOIN query too slow   2,015 N. Kovac 10/13/2012 11:52AM
Re: JOIN query too slow   992 Peter Brawley 10/14/2012 10:26AM
Re: JOIN query too slow   961 Rick James 10/16/2012 07:48PM
bulk update very slow   4,199 james che 09/25/2012 02:51PM
Re: bulk update very slow   1,515 james che 09/26/2012 02:58PM
Re: bulk update very slow   1,441 Rick James 09/27/2012 08:19PM
Re: bulk update very slow   1,522 Jørgen Løland 09/27/2012 12:01PM
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