A.MOD(Y,2)=0 B.INT(Y/2)=Y/2 C.Y%2=0 D.INT(Y/2)=MOD(Y,2)
A.’’2*&A’’ B.’’2&123’’ C.246 D.’’2*123’’
A. INDEX ON 工資/A 職工號(hào)/D TO CN B. SET INDEX ON 工資,職工號(hào) TO CN C. INDEX ON STR(工資,4)+職工號(hào) TO CN D. INDEX ON 工資/A 職工號(hào)/A TO CN