Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.
How to change: update clientbalance set balance = (@balance - @amount) to If @transactiontype = 1 or 2 set @sign = '-' If @transactiontype = 3 or 4 set @sign = '+' update clientbalance set balance = (@balance @sign @amount)
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