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