It sounds as if you know the receipt, payment and balance and want to find the opening.

This will do that.

UPDATE table1 SET OPENING = balance + (paymentt - receipt)

Is that what you wanted?


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Table1 has following Five Fields

--Date---Opening---Receipt---Payment---Balance
02/06/08------0--------500----------100---------400
03/06/08------0--------200----------300---------300
04/06/08------0--------800----------200---------900


How to fillout Opening columns as

--Date---Opening---Receipt---Payment---Balance
02/06/08------0----------500---------100---------400
03/06/08----400--------200----------300---------300
04/06/08----300--------800---------200---------900

Anyone who does not go overboard- deserves to.
Malcolm Forbes, Sr.