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SELECT 职工号,姓名 FROM 职工;
WHERE 年龄<40 AND 仓库号="WH1" OR 仓库号="WH2" SELECT 职工号,姓名 FROM职工;
WHERE 年龄 <40 AND (仓库号="WH1" AND 仓库号="WH2") SELECT 职工号,姓名 FROM 职工;
WHERE 年龄 <40 OR 工仓库号="WH1" OR 仓库号="WH2" SELECT 职工号,姓名 FROM 职工;
WHERE 年龄 <40 AND (仓库号="WH1" OR 仓库号="WH2")
DELETE FROM 仓库 WHERE 仓库号=“WH2” DROP FROM 仓库 WHERE 仓库号=“WH2” DELETE 仓库 WHERE 仓库号=“WH2” DROP FROM 仓库 WHERE 仓库号=WH2
仓库号="wh1" AND仓库号="wh2" 仓库号!="wh1"OR仓库号#"wh2", 仓库号<>"wh1" OR仓库号!"wh2" 仓库号户'whl,tAND仓库号!:”wh2”
SELECT职工号,姓名FROM职工; WHERE年龄<40 AND仓库号="WH1"OR仓库号="WH2" SELECT职工号,姓名FROM职工; WHERE年龄<40 AND(仓库号="WHI"AND仓库号="WH2") SELECT职工号,姓名FROM职工; WHERE年龄<40 OR工仓库号="WH1"OR仓库号="WH2" SELECT职工号,姓名FROM职工; WHERE年龄<40 AND(仓库号="WH1"OR仓库号="WH2")
仓库号=“wh1”AND仓库号=“wh2” 仓库号!=“wh1”OR仓库号#“wh2” 仓库号<>“wh1”OR仓库号!=“wh2” 仓库号!=“wh1”AND仓库号!=“wh2”
SELECT职工号,姓名FROM职工;
WHERE年龄<40 AND仓库号="WH1"OR仓库号="WH2" SELECT职工号,姓名FROM职工;
WHERE年龄<40 AND(仓库号="WHI"AND仓库号="WH2") SELECT职工号,姓名FROM职工;
WHERE年龄<40 OR工仓库号="WH1"OR仓库号="WH2" SELECT职工号,姓名FROM职工;
WHERE年龄<40 AND(仓库号="WH1"OR仓库号="WH2")