CHIL-SQL-快速参考

SQL 语句

语句	语法
AND / OR	SELECT column_name(s) FROM table_name WHERE condition AND\|OR condition
ALTER TABLE (add column)	ALTER TABLE table_name ADD column_name datatype
ALTER TABLE (drop column)	ALTER TABLE table_name DROP COLUMN column_name
AS (alias for column)	SELECT column_name AS column_alias FROM table_name
AS (alias for table)	SELECT column_name FROM table_name AS table_alias
BETWEEN	SELECT column_name(s) FROM table_name WHERE column_name BETWEEN value1 AND value2
CREATE DATABASE	CREATE DATABASE database_name
CREATE INDEX	CREATE INDEX index_name ON table_name (column_name)
CREATE TABLE	CREATE TABLE table_name ( column_name1 data_type, column_name2 data_type, ....... )
CREATE UNIQUE INDEX	CREATE UNIQUE INDEX index_name ON table_name (column_name)
CREATE VIEW	CREATE VIEW view_name AS SELECT column_name(s) FROM table_name WHERE condition
DELETE FROM	DELETE FROM table_name (Note: Deletes the entire table!!) or DELETE FROM table_name WHERE condition
DROP DATABASE	DROP DATABASE database_name
DROP INDEX	DROP INDEX table_name.index_name
DROP TABLE	DROP TABLE table_name
GROUP BY	SELECT column_name1,SUM(column_name2) FROM table_name GROUP BY column_name1
HAVING	SELECT column_name1,SUM(column_name2) FROM table_name GROUP BY column_name1 HAVING SUM(column_name2) condition value
IN	SELECT column_name(s) FROM table_name WHERE column_name IN (value1,value2,..)
INSERT INTO	INSERT INTO table_name VALUES (value1, value2,....) or INSERT INTO table_name (column_name1, column_name2,...) VALUES (value1, value2,....)
LIKE	SELECT column_name(s) FROM table_name WHERE column_name LIKE pattern
ORDER BY	SELECT column_name(s) FROM table_name ORDER BY column_name [ASC\|DESC]
SELECT	SELECT column_name(s) FROM table_name
SELECT *	SELECT * FROM table_name
SELECT DISTINCT	SELECT DISTINCT column_name(s) FROM table_name
SELECT INTO (used to create backup copies of tables)	SELECT * INTO new_table_name FROM original_table_name or SELECT column_name(s) INTO new_table_name FROM original_table_name
TRUNCATE TABLE (deletes only the data inside the table)	TRUNCATE TABLE table_name
UPDATE	UPDATE table_name SET column_name=new_value [, column_name=new_value] WHERE column_name=some_value
WHERE	SELECT column_name(s) FROM table_name WHERE condition

转载于:https://www.cnblogs.com/ChineseIntelligentLanguage/p/6431176.html

CHIL-SQL-快速参考相关推荐

OGG学习笔记04-OGG复制部署快速参考
OGG学习笔记04-OGG复制部署快速参考源端:Oracle 10.2.0.5 RAC + ASM 节点1 Public IP地址:192.168.1.27 目标端:Oracle 10.2.0.5 ...
linux单机到单机adg环境,Oracle 11.2.0.4 DataGuard 环境打PSU,OJVM PSU补丁快速参考
环境:RHEL6.5 + Oracle 11.2.0.4 DataGuard physical standby 主库和备库都是单节点. 需求:主备库同时应用160719的PSU和OJVM PSU补丁. ...
OWL2 Web本体语言快速参考指南
2019独角兽企业重金招聘Python工程师标准>>> 本文档<OWL2 Web本体语言入门>是W3C发布的OWL 2 Web Ontology Language Pri ...
使用C#+Linq+SQL快速开发业务
C#开发桌面程序的效率确实很高,今天就来总结下如何使用C#+Linq+SQL快速开发一个新的业务系统. Linq是微软官方的轻量级的ORM工具,使用它结合SQL可以快速的生成实体类,再通过Linq操作 ...
ASP中SQL语句参考及记录集对象
DB2 提供了关连式资料库的查询语言 SQL (Structured Query Language),是一种非常口语化.既易学又易懂的语法.此一语言几乎是每个资料库系统都必须提供的,用以表示关连式的操 ...
SED单行脚本快速参考(Unix流编辑器)
SED单行脚本快速参考(Unix流编辑器) « web2.0ã€äº'è®¡ç®-ã€é›†ç¾¤ã€é«˜å¯ç"¨æ€§ SED单行脚本快速参考(Unix流编辑器) 2005年12月29 ...
ACCESS SQL语法参考
ACCESS SQL语法参考一. 基础概念可以使用的数据类型如下: 1. TEXT:文本型(指定长度时),备注型(不指定长度时): 2. CHAR,NCHAR,VARCHAR, ...
《HTML5和CSS3快速参考》——1.3HTML5的品牌化
本节书摘来自异步社区<HTML5和CSS3快速参考>一书中的第1章,第1.3节,作者: [美]Sergey Mavrody 更多章节内容可以访问云栖社区"异步社区"公众 ...
深度学习快速参考 | iBooker·ApacheCN
原文:Deep Learning Quick Reference 协议:CC BY-NC-SA 4.0 自豪地采用谷歌翻译不要担心自己的形象,只关心如何实现目标.--<原则>,生活原则 ...
Impala SQL 语言参考
2019独角兽企业重金招聘Python工程师标准>>> Impala SQL 语言参考 Cloudera Impala 的查询语言是基于 SQL 的.为了保护用户在技能和查询设计方面 ...

CHIL-SQL-快速参考

SQL 语句

CHIL-SQL-快速参考相关推荐

最新文章

热门文章