試題詳解

26.有SQL语句：SELECT DISTINCT系号FROM教师WHERE　工资>=ALL (SELECT 工资FROM教师WHERE系号="02")与如上语句等价的SQL语句是
(A)、SELECT DISTINCT系号FROM教师WHERE工资>=(SELECT MAX(工资）FROM教师WHERE 系号="02")
(B)、SELECT DISTINCT系号FROM教师WHERE工资>=(SELECT MIN(工资)FROM教师WHERE 系号="02")
(C)、SELECT DISTINCT系号FROM教师WHERE工资>=ANY(SELECT(工资)FROM教师WHERE 系号="02")
(D)、SELECT DISTINCT系号FROM教师WHERE工资>=SOME (SELECT(工资)FROM教师WHERE 系号="02")