My SQL Auto_increment not working for a fixed column - mysql

Question

I am trying to create three tables using MySQL Workbench, where two columns need to be auto incremented with a fixed starting value. I have checked some online resources and figured it out what statements to use.
create database test;
use test;
/*table Project */
create table Project(
Pnumber INT NOT NULL AUTO_INCREMENT,
Pname varchar(30) NOT NULL,
Plocation enum ('QLD', 'VIC', 'NSW', 'SA') NOT NULL,
primary key(Pnumber)
);
ALTER TABLE Project AUTO_INCREMENT = 7777770;
/*table Department*/
Create table Department(
Dcode varchar(5) NOT NULL,
Dname varchar(30),
Dmg_ssn varchar(30),
primary key(Dcode)
);
/* Table Employee*/
create table Employee(
Ssn INT NOT NULL AUTO_INCREMENT,
Ename varchar(30) NOT NULL,
Bdate DATE,
Address varchar(30),
Dcode varchar(5) NOT NULL,
Driver_License varchar(30),
primary key(Ssn),
foreign key(Dcode) references Department(Dcode)
);
ALTER TABLE Employee AUTO_INCREMENT = 1000000;
/* Insert into Project*/
Insert into Project values ('7777770','Star', 'QLD');
Insert into Project values ('7777771','Innova', 'NSW');
Insert into Project values ('7777772','Andra', "QLD");
/* Insert into Department */
insert into Department values ('ABC12', 'Finances', 'RA12');
insert into Department values ('WXY10', 'Human Resources', 'RA12');
insert into Department values ('PBC32', 'S2', 'RB13');
/*Insert into Employee */
insert into Employee values ('0000001','Vladimir Rostov', '2008-7-04', '19 Wilson St', 'ABC12', '1023456');
insert into Employee values ('0000002','Rory Reid', '2002-2-10', '10 Mary St', 'WXY10', '2365947');
insert into Employee values ('0000003','Andy Murray', '2001-5-11', '1280 Albert St', 'WXY10', '5891655');
However, after I created the tables, only the column Pnumber in table Project follows the required format, while the column Ssn in Employee does not.
This is a SELECT over the Employee table:
Ssn,Ename,Bdate,Address,Dcode,Driver_License
1,"Vladimir Rostov",2008-07-04,"19 Wilson St",ABC12,1023456
2,"Rory Reid",2002-02-10,"10 Mary St",WXY10,2365947
3,"Andy Murray",2001-05-11,"1280 Albert St",WXY10,5891655
Any idea what I am doing wrong??

Answer 1

Your sql script has an employee table, not a student, I assume these two names refer to the same table. I will use the employee name.
So, you set the start value auto increment of the employee table to 1000000:
ALTER TABLE Employee AUTO_INCREMENT = 1000000;
But then you explicitly insert 1, 2, and 3 into this column with your insert statements because '0000001' translates into 1. If you explicitly insert a value into auto increment and it is higher than the maximum value in the given field, then mysql will insert that value as is into the auto increment field.
If you are using auto increment, then you should let it work and do not specify an explicit value:
/*Insert into Employee */
insert into Employee (Ename, Bdate, Address, Dcode, Driver_License) values ('Vladimir Rostov', '2008-7-04', '19 Wilson St', 'ABC12', '1023456');
insert into Employee (Ename, Bdate, Address, Dcode, Driver_License) values ('Rory Reid', '2002-2-10', '10 Mary St', 'WXY10', '2365947');
insert into Employee (Ename, Bdate, Address, Dcode, Driver_License) values ('Andy Murray', '2001-5-11', '1280 Albert St', 'WXY10', '5891655');