sql语句一

标签：sql

use mydata;

);

inseert into toroto values(1,‘feifei‘);

show tables;

select * from toroto;

select * from t1 left join t2 on t1.id = t2.id;

select * from t1 right join t2 on t1.id = t2.id;

show databases;

desc toroto;

select * from toroto order by id desc limit 3,1;

delete from toroto;

drop table toroto;

insert into toroto values (null,‘pangpang1‘);

insert into toroto (name) values (‘pangpang3‘);

select now();

alter table toroto add home varchar(100) after name;

alter table toroto drop home;

update toroto set name = ‘baobao‘ where id = ‘1‘;

select * from toroto,toroto2 where toroto.id = toroto2.id;

sql语句一

标签：sql

原文地址：http://blog.csdn.net/lyy98521/article/details/45417899