It depends why step 3 failed.[MySQL] 1: START TRANSACTION 2: WITHDRAW $50 from account 32146. 3: DEPOSIT $50 into account 12345. 4: LOG transfer (date/time/teller/etc...) for auditing. 5: COMMIT TRANSACTION
if this failed at step 3 the transaction would be hung and even if rolled
back by server admin the money would still be gone from account 32146
Have a look at http://www.innodb.com/ibman.php#Error_handling
If you want to rollback the transaction to the beginning on any error, you simply use an 'on error' statement in VB to trap the error, and send a rollback command when the error is detected.
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