Bend SQL to Your Will With EXPLAIN
Ligaya Turmelle (21.May.2009)
Talk at php|tek 2009 (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/191
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