Questions tagged [locking]
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SQL Server: Are shared locks used for foreign key constraint enforcement, and how long are they kept?
Main question is in the subject.
In more detail: Let's say we have a table T with a FK constraint to table U (for simplicity, to its PK, and both table use clustered indices on their PKs). Now, we INSERT or UPDATE a row in T, thereby writing the FK…
H.M. Müller
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