https://ronaldbradford.com/tags/covering-index/ Recent content in Covering Index on Enterprise Data Architect | Principal Data Strategist | MySQL Subject Matter Expert | Author | Speaker Hugo -- gohugo.io en-us Wed, 15 Apr 2015 00:42:01 +0000 https://ronaldbradford.com/blog/improving-performance-with-better-indexes-2015-04-14/ Wed, 15 Apr 2015 00:42:01 +0000 https://ronaldbradford.com/blog/improving-performance-with-better-indexes-2015-04-14/ The slides for my Improving Performance With Better Indexes presentation at Percona Live 2015 MySQL Conference and Expo are now available. In this presentation I discuss how to identify, review and analyze SQL statements in order to create better indexes for your queries. https://ronaldbradford.com/blog/explain-this-2009-09-14/ Tue, 15 Sep 2009 03:12:45 +0000 https://ronaldbradford.com/blog/explain-this-2009-09-14/ The EXPLAIN command is an important tool to review how a SQL query is executed and in this example includes what indexes are used. By adding a covering index I ended up with the following EXPLAIN plan I was unable to explain. https://ronaldbradford.com/blog/understanding-different-mysql-index-implementations-2009-07-22/ Thu, 23 Jul 2009 00:37:20 +0000 https://ronaldbradford.com/blog/understanding-different-mysql-index-implementations-2009-07-22/ It is important to know and understand that while indexing columns in MySQL will generally improve performance, using the appropriate type of index can make a greater impact on performance.