select 语法

select 语句主要语法:

SELECT select_list
  [ INTO new_table ]
  FROM table_source
  [ WHERE search_condition ]
  [ GROUP BY group_by_expression ]
  [ HAVING search_condition ]
  [ ORDER BY order_expression [ ASC | DESC ] ]


比较全的如下:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
SELECT
    [ALL | DISTINCT | DISTINCTROW ]
    [HIGH_PRIORITY]
    [STRAIGHT_JOIN]
    [SQL_SMALL_RESULT] [SQL_BIG_RESULT] [SQL_BUFFER_RESULT]
    [SQL_CACHE | SQL_NO_CACHE] [SQL_CALC_FOUND_ROWS]
    select_expr, ...
    [INTO OUTFILE 'file_name' export_options   | INTO DUMPFILE 'file_name']
    FROM table_references
    [WHERE where_definition]
    [GROUP BY {col_name | expr | position}
      [ASC | DESC], ... [WITH ROLLUP]]
    [HAVING where_definition]
    [ORDER BY {col_name | expr | position}
      [ASC | DESC] , ...]
    [LIMIT {[offset,] row_count | row_count OFFSET offset}]
    [PROCEDURE procedure_name(argument_list)]
    [FOR UPDATE | LOCK IN SHARE MODE]]

  

posted @   ywl925  阅读(1004)  评论(0编辑  收藏  举报
编辑推荐:
· .NET Core内存结构体系(Windows环境)底层原理浅谈
· C# 深度学习:对抗生成网络(GAN)训练头像生成模型
· .NET 适配 HarmonyOS 进展
· .NET 进程 stackoverflow异常后,还可以接收 TCP 连接请求吗?
· SQL Server统计信息更新会被阻塞或引起会话阻塞吗?
阅读排行:
· 传国玉玺易主,ai.com竟然跳转到国产AI
· 本地部署 DeepSeek:小白也能轻松搞定!
· 自己如何在本地电脑从零搭建DeepSeek!手把手教学,快来看看! (建议收藏)
· 我们是如何解决abp身上的几个痛点
· 普通人也能轻松掌握的20个DeepSeek高频提示词(2025版)
Copyright at 2012 yangwenlong
点击右上角即可分享
微信分享提示