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All versions of Microsoft SQL Server (not MySQL). Please also add a version-specific tag, like sql-server-2016, since it is often relevant to the question.

2 votes
2 answers
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Key lock triggered by concurrent batch update

I'm doing a batch update operation,but it appears key lock I think I'm in trouble. I don't understand why the deadlock is happening. Environment: SQL Server 2016 Work mode:concurrent batch update dea …
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