create table details(id int(10) NOT NULL AUTO_INCREMENT,
user_name varchar(50),
password varchar(50),
PRIMARY KEY(id));

create table details(id int(10) NOT NULL AUTO_INCREMENT, username varchar(50), password varchar(50), PRIMARY KEY(id));
alter table details add email varchar(30);

insert into details values(0,"vidya",123);
insert into details values(0,"zeeshan",111);