Rowlock can block more than a row

To avoid the blocking of other users, rowlocks are sometimes used to create locks on the most granular locking level in a table. In theory, when user A makes changes to a row, user B can read, change or delete any other row than that. But in practice, user B can still become blocked by user A altough they are not accessing the same row. It all depends on how data is accessed.


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