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阿里云文档 2024-12-19

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阿里云文档 2024-01-16

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统一服务在支持ANSI SQL标准语法的DML（data manipulation language）基础上，针对API开发过程中SQL语法使用的具体需求，定义了自己的扩展，以支持参数声明、动态SQL、范围参数生成等用法。本文为您介绍SQL语法指南。

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阿里云文档 2023-05-15

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阿里云文档 2023-05-01

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文章 2023-02-26 来自：开发者社区

MySQL—SQL语法大全【新手专属，赶紧收藏】

目录一、基础，多练二、提升，游刃有余三、技巧，深浅有度四、其他、一物降一物一、基础，多练SQL 语法大全一、基础 1、说明：创建数据库 CREATEDATABASEdatabase-name 2、说明：删除数据库 dropdatabase dbname 3、说明：备份sql server --- 创建备份数据的 device USE master EXEC sp_addumpde...

文章 2023-01-20 来自：开发者社区

【大数据系列之MySQL】（二十四）：MySQL中sql99语法连接操作

连接查询分类：sql92标准：仅仅支持内连接sql99标准：【推荐使用这种做法】按功能分类：内连接：等值连接、非等值连接、自连接外连接：左外连接、右外连接、全外连接交叉连接：笛卡尔积sql99语法：select 查询列表 from 表1 别名【连接类型】 from 表2 别名 on 连接条件【where 筛选条件】【group by 分组】【having 筛选条件】【order by ....

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