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有如下关系: 仓库号 职工号 工资 WH1 E1 427 WH2 E3 521 WH3 E4 ...

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SELECT * FROM 职工表 WHERE 工资 BETWEEN 1500 AND 2000  SELECT * FROM 职工表 WHERE 工资 BETWEEN 2000 AND 1500  SELECT * FROM 职工表 WHERE 工资 FROM 1500 INTO 2000  SELECT * FROM 职工表 WHERE 工资 FROM 2000 INTO 1500  
SELECT DISTINCT仓库号FROM职工WHERE工资>=ANY=; (SELECT MAX(工资)FROM职工WHERE仓库号="WH1")  SELECT DISTINCT仓库号FROM职工WHERE工资>=ANY; (SELECT工资FROM职工WHERE仓库号="WH1")  SELECT DISTINCT仓库号FROM职工WHERE工资>=ALL; (SELECT工资FROM职工WHERE仓库号="WH1")  SELECT DISTINCT仓库号FROM职工WHERE工资>=ALL; (SELECT MAX(工资)FROM职工WHERE仓库号="WH1")  
SELECT DISTINCT仓库号FROM职工WHERE工资>=ANY=;
(SELECT MAX(工资)FROM职工WHERE仓库号="WH1")  
SELECT DISTINCT仓库号FROM职工WHERE工资>=ANY;
(SELECT工资FROM职工WHERE仓库号="WH1")  
SELECT DISTINCT仓库号FROM职工WHERE工资>=ALL;
(SELECT工资FROM职工WHERE仓库号="WH1")  
SELECT DISTINCT仓库号FROM职工WHERE工资>=ALL;
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SELECT 职工号,工资 FROM 职工表;  WHERE 仓库表.所在城市="广州"  SELECT 职工号,工资 FROM 职工表;  WHERE 仓库表.仓库号=职工表.仓库号;AND 仓库表.所在城市="广州"  SELECT 职工号,工资 FROM 仓库表,职工表;  WHERE 仓库表.仓库号=职工表.仓库号;AND 仓库表.所在城市="广州"  SELECT 职工号,工资 FROM 仓库表,职工表;  WHERE 仓库表.仓库号=职工表.仓库号;  OR 仓库表.所在城市="广州/  
SELECT仓库号,COUNT(*)AS人数,AVG(工资)AS平均工资FROM职工;
GROUP BY仓库号WHERE COUNT(*)>=4  
SELECT仓库号,COUNT(*)AS人数,AVG(工资)AS平均工资FROM职工;
GROUP BY仓库号HAVING COUNT(*)>=4  
SELECT仓库号,COUNT(*)AS人数,AVG(工资)AS平均工资FROM职工;
GROUP BY职工号WHERE COUNT(*)>=4  
SELECT仓库号,COUNT(*)AS人数,AVG(工资)AS平均工资FROM职工;
GROUP BY职工号HAVING COUNT(*)>=4  

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