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Proprietary and confidential.

HOW TO CATCH SQL SERVER

PERFORMANCE TROUBLEMAKERS

Pinal Davehttps://blog.SQLAuthority.com

© 2015 IDERA, Inc. All rights reserved. Proprietary and confidential. 2

AGENDA

Database Settings• Cardinality• Statistics

Before and After Reports• Wait Stats• Frequently Ran Queries

Important Resources

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DATABASE SETTINGS - STATISTICS

Auto create statistics Auto update statistics Helps query optimizer to generate the optimal plan Latest statistics better execution plan

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CARDINALITY ESTIMATION

Predicts rows your query likely to return Helps query optimizer to generate the optimal plan

Latest CE is more accurate Latest CE more optimal query plan

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SERVER BOTTLENECKS WITH WAIT STATS

Displays server-level bottlenecks Focus on IO, CPU, and memory

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PERFORMANCE3 Performance Tuning Scripts:https://go.sqlauthority.com

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THANKS!Any questions?

3 Performance Tuning Scriptshttps://go.sqlauthority.com