The first two rows are the results of alinear regression run on the measurements displayed in the right-hand chart. “OLS regression” estimates the time needed for a single execution of the activity being benchmarked, using an ordinary least-squares regression model. This number should besimilar to the “mean execution time” row a couple of rows beneath. The OLS estimate is usually more accurate t

Go to main content 1/23 Contents List of Figures List of Tables Title and Copyright Information Preface Audience Documentation Accessibility Related Documents Conventions What's New inOracle Performance? Part I Getting Started 1 Introduction About ThisGuide CommonOracleDBA Tasks Tools for Tuning theDatabase 2OracleDatabase Performance Method GatheringDatabase Statistics Using the Automatic
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