When it comes to updating all rows in a table, does the method of locking matter for performance?

Posted by Evan Carroll on Stack Overflow See other posts from Stack Overflow or by Evan Carroll
Published on 2010-06-06T16:41:48Z Indexed on 2010/06/06 16:52 UTC
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locking

Question is a follow up to this.

The SQL in question was

UPDATE stats SET visits = (visits+1)

And the question is, for the purpose of performance, does it matter if you lock all rows in stats in comparison to locking the table stats? Or, if the database uses a page-lock rather than a table/row lock?

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