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NOLOCK and READPAST in SQL Server is a document available to read on EtoBox.

What is NOLOCK and READPAST in SQL Server about?

This document discusses the NOLOCK and READPAST table hints in SQL Server. NOLOCK allows dirty reads by not issuing shared locks, increasing concurrency but possibly returning uncommitted data. READPAST skips locked rows to avoid blocking but makes it difficult to ensure all necessary rows are included. Examples show NOLOCK returning an uncommitted row while READPAST skips a locked row during counting.

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