sum value in table database

mohanad2 asked:

ihave data base contain from table

employee table
  empno
  ename
  val_sal

adittion work
  empno
  adwork

comm
  empno
  comm

bunish
   empno
   bun_val

salary
  empno
  sal

iwant while add value off(+adwork,+comm,-bun_val,+sal)in my data base the val_sal
contain (+adwork,+comm,-bun_val,+sal) in salary of employee automatical iuse access data base how iwork that
i can't use one table becuse iuse different user
thank

Tags: Visual Basic

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