Bending queries to your will with EXPLAIN
Sheeri K. Cabral (11.Mar.2010 at 16:00)
Talk at ConFoo.ca Web Techno Conference (English - US)
Just about anyone can write a basic SQL query for a table. Not everyone can write a *good* query though - that takes practice and knowing how to understand what the optimizer is doing with the query. Learn the basics of query optimization so you keep your application engaging the user rather then showing the progress bar as they wait on the database.
Quicklink: https://joind.in/1360
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12.Mar.2010 at 03:37 by John Mertic
I liked all the real examples shown in the talk of actually how to read EXPLAIN results. Lots of useful information.