Advent of 2025, Day 16 – SQL Server 2025 – Optional parameter plan optimization (OPPO)
Read OriginalThis technical article details the Optional Parameter Plan Optimization (OPPO) feature in Microsoft SQL Server 2025. OPPO addresses a specific Parameter Sensitive Plan (PSP) problem, particularly for queries using patterns like 'WHERE column = @param OR @param IS NULL'. It explains how OPPO, enabled by default, helps avoid inefficient table scans and excessive memory grants by enabling adaptive plan optimization for dynamic search conditions.
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