MySQL的常见操作在这里先做一下总结，已经整合到代码里面，经过检验无误。
复制代码 代码如下:
create database xuning_test;
use xuning_test;
create table person(
id int not null,
name varchar(16) not null,
sex varchar(16) not null,
age int not null,
address varchar(128) not null,
remark varchar(512) not null
);
insert into person value
(1,'name_1','men',99,'beijing','This is a frindsheep boy'),
(2,'name_2','men',88,'shanghai','ok great'),
(1,'name_3','man',77,'guangzhou','This is lickly'),
(1,'name_4','men',66,'beijing','This is a frindsheep boy'),
(1,'name_5','men',55,'beijing','you dont going to shool'),
(1,'name_6','man',44,'beijing','This is a frindsheep boy'),
(1,'name_7','men',33,'beijing','This is a frindsheep boy'),
(1,'name_8','man',22,'beijing',''),
(1,'name_9','men',11,'beijing','This is a frindsheep boy')
;
select * from person;
select name from person;
select name from person where sex = 'men';
select name,address from person where age > 50;
select xuning_test.person.name, xuning_test.person.id, xuning_test.person.age, xuning_test.person.address
from xuning_test.person, test1.test_xuning
where xuning_test.person.id = test1.test_xuning.id
;
use xuning_test;
select c.name,sex from person as c where c.age > 40 and c.address='beijing';
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