MySQL

データベース。

コマンドプロンプトを起動後に、

mysql -u root

とし、rootでログイン。
デフォルトではrootでパスの設定はされていないので、ログイン後に設定する。

mysqladmin -u root password パスワード

↑設定完了、ログイン方法は↓

mysql -u ユーザー名 -pパスワード

xamppの場合

passを不用意に変えるとphpmyadminがひらけなくなるので、config.inc.phpで設定を変える。

help

? (\?) Synonym for `help'.
clear (\c) Clear command.
connect (\r) Reconnect to the server. Optional arguments are db and host.
delimiter (\d) Set statement delimiter.
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.
notee (\t) Don't write into outfile.
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.
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.