You can watch the replay for this Geek Sync webcast, MySQL Performance Tuning via Query Tuning, in the IDERA Resource Center, http://ow.ly/q0u550A4qqQ. No one wants the slow performance of their application. In this session, we will learn about three performance tuning tricks that DBAs must know to improve their MySQL performance. We will understand what those tricks are and how efficiently we can use them in just 60 minutes. We will explore various settings as well as SQL code that will kill MySQL performance. At the end of this session, every attendee will receive SQL scripts that will help them improve their server’s performance. The presentation is carefully crafted from the real-world experience for DBAs so they can learn tricks that can help them to improve their server’s performance. Speaker: Pinal Dave is a Developer Evangelist and performance tuning expert. He has authored 11 SQL Server database books, 14 Pluralsight courses and over 2900 articles on the database technology on his blog at http://blog.sqlauthority.com. Along with 10+ years of hands-on experience, he holds a Masters of Science degree and a number of certifications, including MCTS, MCDBA and MCAD (.NET).

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MySQL Performance Tuning via
Query Tuning
Pinal Dave
https://blog.sqlauthority.com

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Agenda
 Basics of Optimizer
 Indexing
 Query Re-writing
 Best Practices
 Summary

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Query Optimizer
 Cost based optimizer
 Converts sub-optimal join types to efficient logic
 Reorder join tables
 Reducing constant expressions
 Optimizing algebraic rules
 Logic short circuit
 Optimal index usage

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Understanding EXPLAIN Command
EXPLAIN SELECT Query

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Demo: Practical Performance Tuning
 Indexes
 Joins
 Subqueries
 Union

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Best Practices
 Use EXPLAIN for execution plan of query
 Avoid using <> operator in query
 Use UNION ALL in place of UNION
(If no duplicate)
 Test your query with real data

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Questions?
 pinal@sqlauthority.com
 Free Scripts: https://go.sqlauthority.com