Adrian Hills • 5/26/2010

Optimising wildcard prefixed LIKE conditions

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This article explains the performance issue with SQL queries using a wildcard at the beginning of a LIKE condition (e.g., '%Tire Tube'), which forces an index scan. It details a solution involving adding a computed column with the reversed string, indexing it, and rewriting the query to allow an index seek, significantly improving efficiency on larger tables.

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#sql #indexing #Query Optimization
Optimising wildcard prefixed LIKE conditions

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