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mysql查看帮助
1.按照层次看帮助
“?contents”命令来显示所有可供查询的的分类
mysql> ? contents
You asked for help about help category: "Contents"
For more information, type ‘help <item>‘, where <item> is one of the following
categories:
Account Management
Administration
Data Definition
Data Manipulation
Data Types
Functions
Functions and Modifiers for Use with GROUP BY
Geographic Features
Language Structure
Plugins
Storage Engines
Stored Routines
Table Maintenance
Transactions
Triggers
MySQL 中都支持哪些数据类型,可以执行“? data types”命令:
mysql> ? data types
You asked for help about help category: "Data Types"
For more information, type ‘help <item>‘, where <item> is one of the following
topics:
AUTO_INCREMENT
BIGINT
BINARY
BIT
BLOB
BLOB DATA TYPE
BOOLEAN
。。。。。。
2.快速查阅帮助
在实际应用当中,如果需要快速查阅某项语法时,可以使用关键字进行快速查询。例如,想
知道show 命令都能看些什么东西,可以用如下命令:
mysql> ? show
Name: ‘SHOW‘
Description:
SHOW has many forms that provide information about databases, tables,
columns, or status information about the server. This section describes
those following:
SHOW AUTHORS
SHOW CHARACTER SET [LIKE ‘pattern‘]
SHOW COLLATION [LIKE ‘pattern‘]
SHOW [FULL] COLUMNS FROM tbl_name [FROM db_name] [LIKE ‘pattern‘]
SHOW CONTRIBUTORS
SHOW CREATE DATABASE db_name
SHOW CREATE EVENT event_name
SHOW CREATE FUNCTION funcname
。。。。。。
例如,如果想参看CREATE TABLE 的语法,可以使用以下命令:
mysql> ? create table
Name: ‘CREATE TABLE‘
Description:
Syntax:
CREATE [TEMPORARY] TABLE [IF NOT EXISTS] tbl_name
56
[table_option ...]
[partition_options]
Or:
CREATE [TEMPORARY] TABLE [IF NOT EXISTS] tbl_name
[(create_definition,...)]
[table_option ...]
[partition_options]
select_statement
、 。。。。。。
3.常用的网络资源
http://dev.mysql.com/downloads/是MySQL 的官方网站,可以下载到各个版本的MySQL 以及
相关客户端开发工具等。
http://dev.mysql.com/doc/提供了目前最权威的MySQL 数据库及工具的在线手册。
http://bugs.mysql.com/这里可以查看到MySQL 已经发布的bug 列表,或者向MySQL 提交bug
报告。
http://www.mysql.com/news-and-events/newsletter/通常会发布各种关于MySQL 的最新消息。
mysql查看帮助