SQL语句: SELECT * FROM 仓库表 WHERE NOT EXISTS;
题型:填空题
问题:
SQL语句: SELECT * FROM 仓库表 WHERE NOT EXISTS; (SELECT * FROM 职工表 WHERE 仓库号=仓库.仓库号) 该语句等价于: SELECT * FROM 仓库表 WHERE 仓库号 ______; (SELECT 仓库号 FROM 职工表)
SQL语句: SELECT * FROM 仓库表 WHERE NOT EXISTS; (SELECT * FROM 职工表 WHERE 仓库号=仓库.仓库号) 该语句等价于: SELECT * FROM 仓库表 WHERE 仓库号 ______; (SELECT 仓库号 FROM 职工表)