[snip] I read 6) as saying that until you complete all of the calculations on a row, you don't change the data for the row. I could even interpret this as saying that you don't update ANY row on the table until you have completed the calculations for ALL of the rows.
I read 7) as saying that you compute all new values based on a fixed set of initial values, the <update source>. Am I just totally confused? I do not believe that any of these specification allows the engine to "see" a change to a row value until after the row (or even the entire statement, depending on how you want to read the clauses dealing with <value expression>s or <update source>) completes it's processing. [/snip] You may be confused, as the interpretation is quite the same for several DB manufacturers. In the case of InnoDB tables I am updating each row per the query... UPDATE [order of tables] SET [for each row table in order] Once the query has performed the operation on all rows affected the COMMIT occurs. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
