随笔分类 -  数据库

摘要:简单查询 语法句式如下: SELECT filed1,filed2 ... filedn FROM tablename [WHERE CONDITION11] [GROUP BY filedm [HAVING CONDITION2]] [ORDER BY filedn [ASC|DESC]] fil 阅读全文
posted @ 2022-05-10 23:18 iforeverhz 阅读(36) 评论(0) 推荐(0) 编辑

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