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Re: Thread Safe
Posted by: Ingo Strüwing
Date: September 12, 2005 03:22AM

Yes and yes if there is only one row.

The table gets locked for every update statement. Then for every row in the table count is incremented if it is < 5000. Then the lock is realeased. The next thread gets the lock, increments count for every row with count < 5000 and unlocks the table again. Then the next thread gets the lock and so forth.

If you have only one row in the table, starting with count 0, 5000 update statements will affect one row and then no row will be affected any more.

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