检索最少有3名职工的每个部门的职工工资总额
A.SELECT部门号,COUNT( * ),SUM(工资)FROM职工表; HAVING COUNT( * )>=3
B.SELECT部门号,COUNT( * ),SUM(工资)FROM职工表; GROUP BY部门号HAVING COUNT( * )>=3
C.SELECT部门号,COUNT( * ),SUM(工资)FROM职工表; GROUP BY部门号SETCOUNT( * )>=3
D.SELECT部门号,COUNT( * ),SUM(工资)FROM职工表; GROUP BY部门号WHERE COUNT( * )>=3