A.SELECT*FROM 教师 HWERE 工资 BETWEEN 2000 AND 3000
B.SELECT*FROM 教师 HWERE 工资 >2000 AND 工资<3000
C.SELECT*FROM 教师 HWERE 工资>2000 OR 工资<3000
D.SELECT*FROM 教师 HWERE 工资<=2000 AND 工资>=3000
[单选题]有SQL语句 SELECT * FROM 教师 WHERE NOT(工资>30000R工资<2000) 与如上语句等价的SQL语句是A.SELECT * FROM 教师 WHERE 工资 BETWEEN 2000 AND 3000B.SELECT * FROM 教师 WHERE 工资>2000 AND工资<3000C.SELECT * FROM 教师 WHERE 工资>2000 OR工资<3000D.SELECT * FROM 教师 WHERE 工资<=2000 AND工资>=3000
[单选题]有SQL语句:SELECT * FROM 教师 WHERE NOT(工资>3000 OR 工资<2000)与如下语句等价的SQL语句是A)SELECT*FROM 教师 WHERE 工资 BETWEEN 2000 AND 3000B) SELECT*FROM 教师 WHERE 工资>2000 AND 工资<3000C)SELECT*FROM 教师 WHERE 工资>2000 OR 工资<3000D) SELECT*FROM 教师 WHERE 工资<=200
[单选题]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"
[单选题]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 DISTINC
[单选题]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”) 该语句的执行结果是系号A.“01”和“02”B.“01” 和“03”C.“01”和“04”D.“02”和“03”
[单选题]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/")该语句的执行结果是系号A."01"和"02"B."01"和"03"C."01"和"04"D."02"和"03"
[单选题]若有如下SQL语句 SELECT DISTINCT工资FROM教师; WHERE工资=(SELECT MAX(工资)FROM教师); INTO TABLE Result 执行该语句后,Result表中的记录个数是( )。A.1B.2C.3D.4
[单选题]有SQL语句: SELECT * FROM 教师 WHERE NOT (工资>3000 OR 工资<2000) 与如上语句等价的SQL语句是A.SELECT*FROM 教师 WHERE 工资BETWEEN 2000 AND 3000B.SELECT*FROM 教师 WHERE 工资>2000 AND 工资<3000C.SELECT*FROM 教师 WHERE 工资>2000 OR 工资<3000D.SELECT*FROM 教师 WHERE 工资<=2000 AND 工资>3000
[单选题]有下列SQL SELECT语句:SELECT*FROM 工资表 WHERE 基本工资=1000下列与该语有下列SQL SELECT语句: SELECT*FROM 工资表 WHERE 基本工资<=3000 AND 基本工资>=1000 下列与该语句等价的是( )。A.SELECT*FROM 工资表 WHERE 基本工资 BETWEEN 1000 AND 3000B.SELECT*FROM 工资表 WHERE 基本工资 BETWEEN 3000 AND 1000C.SELECT*FROM 工资表 W
[单选题]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") 该语句的执行结果是系号A) "01"和"02" B)"01"和"03" C)"01"和"04" D)"02"和"03"