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Oracle Database 11g Performance Tuning Recipes: A Problem-Solution Approach by Bill Padfield, Darl Kuhn, Sam R. Alapati

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C H A P T E R  11

Automated SQL Tuning

Prior to Oracle Database 11g, accurately identifying poorly performing SQL queries and recommending solutions was mainly the purview of veteran SQL tuners. Typically one had to know how to identify high-resource SQL statements and bottlenecks, generate and interpret execution plans, extract data from the dynamic performance views, understand wait events and statistics, and then collate this knowledge to produce good SQL queries. As you'll see in this chapter, the Oracle SQL tuning paradigm has shifted a bit.

With the advent of automated SQL tuning features, anybody from novice to expert can generate and recommend solutions for SQL performance problems. This opens the door for new ways to address problematic ...

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