mysql 命令集锦

mysql -h host -u user -p

select version(),current_date;

select user();

select sin(pi()/4),4-2*4;

select now();

show databases;

use test

grant all privileges on *.* to 'andy'@localhost' identified by 'password' with grant option;

grant all privileges on *.* to 'andy'@'%' identified by 'password' with grant option;

alter table andy add weight varchar(3) after sex;

alter table andy rename andy01;

alter table andy drop weight;

alter table andy modify name vharchar(20);

mysql> create table data (

    -> id char(2) primary key,

    -> name varchar(8),

    -> sex varchar(2),

    -> birthday date,

    -> blood varchar(2),

    -> cellphone char(8),

    -> privatephone char(8)

    -> );

mysql> create table partandy (

    -> id char(2) primary key )

    -> select id,name,sex from data;

mysql> use mysql

mysql> select host,user,password from user;    //查看mysql用户

load data local '/path/name.txt' into table name lines terminated 'r\n';

insert into name values ('','','',null);

create table MyTable

(user_id smallint,

username char(22),

password char(22),

email char(30));

alter table MyTable add tel_no char(22);

drop talbe MyTablel;