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Asked: 2026-05-25T13:04:18+00:00

Does executing a ALTER PROCEDURE statement for a stored procedure cause all cached execution

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Does executing a ALTER PROCEDURE statement for a stored procedure cause all cached execution plans for that stored procedure to become invalid and expire in SQL Server 2008 / 2005?

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1 Answer

  1. Editorial Team

    Yes.

    You can verify this by doing 

    SELECT * FROM sys.dm_exec_procedure_stats 
where object_id = object_id('YourProc', 'P')

    before and after.

    From TechNet

    [situations in which plans would be removed from cache include] global operations like running DBCC FREEPROCCACHE to clear all plans from cache, as well as changes to a single procedure, such as ALTER PROCEDURE, which would drop all plans for that procedure from cache.

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