A.
SELECT 仓库号,COUNT(*) AS人数,AVG(工资) AS 平均工资 FROM 职工 GROUPBY 仓库号 WHERE COUNT(*)>=4
B.
SELECT 仓库号,COUNT(*) AS人数,AVG(工资) AS 平均工资 FROM 职工 GROUPBY 仓库号 HAVING COUNT(*)>=4
C.
SELECT 仓库号,COUNT(*) AS人数,AVG(工资) AS 平均工资 FROM 职工 GROUPBY 职工号 WHERE COUNT(*)>=4
D.
SELECT 仓库号,COUNT(*) AS人数,AVG(工资) AS 平均工资 FROM 职工 GROUPBY 职工号 HAVING COUNT(*)>=4