Answer
Use when queries target specific subsets (e.g., Active records). Improves performance and reduces index size.
Quick Answer
Filtered indexes work best for columns where queries consistently target a specific subset — IsDeleted = 0, Status = 'Active', Region = 'US'. The index is smaller, faster, and more efficient than a full index. Particularly valuable for soft-delete patterns where active rows are a small fraction of total.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ