Defining a High-Performance Schema Table Statistics for Query Optimizer ExtentSize, Selectivity, and BlockCount Tune Table Tune Table Calculated Values Exporting and Re-importing Tune Table Statistics Define and Build Indexes Overview Automatically-Defined Indexes Defining Indexes Bitmap Indexes Bitslice Indexes Columnar Indexes Building Indexes Index Validation Using Indexes in Query Processing Analyzing Index Usage Listing Indexes Open, Exists, and Delete Methods Choose an SQL Table Storage Layout Row Storage Layout Columnar Storage Layout Mixed Storage Layout Indexes on Storage Layouts Suggested Application of Row and Columnar Storage Define SQL Optimized Tables Through Persistent Classes Global Naming Strategy Decide Storage Layout Indexes The Extent Index