note Corion <p>Your question 1 is answered by the likely fact that the statement sequence (as a whole) was either not executed until it parsed correctly, or was run in a transaction, and thus all modifications were rolled back.</p> <p>2. Executing multiple SQL statements in one <c>->do</c> call is dependent on the database driver. I wouldn't rely on it.</p> <p>3. It depends on what the database driver implements. Ask the database vendor about the rationale.</p> 992255 992255