Hi Tom, Suppose I am having following SQL query UPDATE TB38O SET G000KE = (SELECT TB39G.A6000D FROM TB39G WHERE TB39G.A0020C = TB38O.A020KF AND TB39G.A0090C = TB38O.A090KF AND TB39G.A1010Y = TB38O.B010KF AND TB39G.A6000Y = TB38O.G000KF AND TB39G.A0230Z = TB38O.A230KF AND TB39G.