9 获取mysql帮助

yuweixian4230

有两种方式可以获得帮助

1. 官方参考手册
  
  官方参考手册下载： http://dev.mysql.com/doc/

2.mysql客户端工具

mysql> ?

For information about MySQL products and services, visit:
   http://www.mysql.com/
For developer information, including the MySQL Reference Manual, visit:
   http://dev.mysql.com/
To buy MySQL Enterprise support, training, or other products, visit:
   https://shop.mysql.com/
List of all MySQL commands:
Note that all text commands must be first on line and end with ';'

?         (\?) Synonym for `help'.
clear     (\c) Clear the current input statement.
connect   (\r) Reconnect to the server. Optional arguments are db and host.
delimiter (\d) Set statement delimiter.
edit      (\e) Edit command with $EDITOR.
ego       (\G) Send command to mysql server, display result vertically.
exit      (\q) Exit mysql. Same as quit.
go        (\g) Send command to mysql server.
help      (\h) Display this help.
nopager   (\n) Disable pager, print to stdout.
notee     (\t) Don't write into outfile.
pager     (\P) Set PAGER [to_pager]. Print the query results via PAGER.
print     (\p) Print current command.
prompt    (\R) Change your mysql prompt.
quit      (\q) Quit mysql.
rehash    (\#) Rebuild completion hash.
source    (\.) Execute an SQL script file. Takes a file name as an argument.
status    (\s) Get status information from the server.
system    (\!) Execute a system shell command.
tee       (\T) Set outfile [to_outfile]. Append everything into given outfile.
use       (\u) Use another database. Takes database name as argument.
charset   (\C) Switch to another charset. Might be needed for processing binlog with multi-byte charsets.
warnings  (\W) Show warnings after every statement.
nowarning (\w) Don't show warnings after every statement.

For server side help, type 'help contents'

mysql>


操作：

1. ctrl+clear 或 \c 清屏

2. connect  操作 重新连接数据库

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| test               |
+--------------------+
2 rows in set (0.03 sec)
mysql> connect test localhost;
Connection id:    15
Current database: test

mysql>


5. edit 编辑命令，会自动跳到vi命令界面下，调用vi命令


6. page  nopage
   page less 显示在屏幕上的内容以 OS 的 ‘less’翻屏显示
   pgae more 显示在屏幕上的内容以 OS 的 'more'翻屏显示