增
insert into user( id, name, password) values (1, "abc", "123");

查
select * from user;

改
update user set password = "12341234" where name = "abcd";

删
delete from user where name = "abc";

增
insert into user( id, name, password) values (1, "abc", "123");
查
select * from user;
改
update user set password = "12341234" where name = "abcd";
删
delete from user where name = "abc";