…MySQL Prepared statements – many of the problems such as extra round trip, non working query cache or non working prepared statements for some of the statements…
Post: 10+ Ways to Crash or Overload MySQL
November 13, 2007 By 20 Comments
…size low, but then performance would suffer. Prepared Statements Number – Happily now there is a limit on total number of prepared statements (max_stmt_count…consumed by single prepared statement you can create statement with thousands of placeholders and send data for each of them using mysql_stmt_…
Post: Handling big result sets
June 26, 2006 By 13 Comments
… than mysql_use_result, as you can see in certain conditions it could be opposite. Prepared statements are typically considered for performance reasons if statement… have query which retrieves a lot of data from MySQL prepared statements may also perform better, probably because of binary protocol and so no…
Post: MySQL Query Cache
July 27, 2006 By 69 Comments
… helpful for MySQL Performance optimization tasks but there are number of things you need to know. First let me clarify what MySQL Query… not support prepared statements and cursors Query Cache works with query text and want full result set at once. In prepared statements there is…
Post: Ultimate MySQL variable and status reference list
January 8, 2011 By 4 Comments
…MySQL manual…Performance_schema_mutex_classes_lostblogpercona.commanual Performance_schema_mutex_instances_lostblogpercona.commanual Performance_schema_rwlock_classes_lostblogpercona.commanual Performance_schema_rwlock_instances_lostblogpercona.commanual Performance….commanual Prepared_stmt_…
Post: Wishes for new "Pure PHP" MySQL driver
October 28, 2006 By 17 Comments
…. Emulated Prepared Statements I would like to have easy time to switch from PS to standard statements to check bugs and performance difference without… like to be able to run multiple queries for multiple MySQL connections at once. For scale out applications data to generate…
Post: Top 5 Wishes for MySQL
June 29, 2007 By 10 Comments
… use them same as single MySQL server with improved performance and high availability. Of course there is MySQL Cluster but it does not… saying about Prepared Statements in MySQL 4.1 which came without query cache support but even worse not all of statements could be prepared not…
Post: New SpecJAppServer results at MySQL and Sun.
November 12, 2008 By Leave a Comment
…Server prepared statements were disabled for the run (same as we had few years ago). Prepared statements …disable them. The MySQL Settings are probably what is the most interesting: MySQL 5.0 Tuning…little bit lless of performance. innodb_thread_concurrency = 0 Good! So Innodb performed best in …
Post: MySQL Server Memory Usage
May 17, 2006 By 18 Comments
… understandable. If you configure MySQL Server so it uses too small amount of memory it will likey perform suboptimally. If you however… procedures may require a lot of memory Prepared statements and Cursors. Single connection may have many prepared statements and cursors. Their number finally can…
Post: MySQL extensions for hosting
April 24, 2008 By 11 Comments
… a lot. It has to be said that the SQL performance is very tricky, it’s very easy to produce large… fed into scripts to bring you automated reports or to perform actions such as: list users by the number of queries… reading lots of rows support for prepared statements which all currently fall under Other_commands a few MySQL performance counters broken down by users…
