Tuning SQL for Optimal Performance - Sybase
Tuning SQL for Optimal Performance - Sybase
Tuning SQL for Optimal Performance - Sybase
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Manual Approach – <strong>SQL</strong> <strong>Tuning</strong>• Try different ways to write the <strong>SQL</strong> statement• Techniques to write <strong>SQL</strong>:– IN, EXISTS, or JOIN– Full table scan, or index scan– JOIN access path– NOT IN, or MINUS– Outer Join, or UNION ALL– IN or OR– Forces?– Temp tables?– ….
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