sqlite autoincrement is a keyword used for auto incrementing a value of a field in the table. we can auto increment a field value by using autoincrement keyword when creating a table with specific column name to auto increment.

the keyword autoincrement can be used with integer field only.

syntax

the basic usage of autoincrement keyword is as follows −

create table table_name(
   column1 integer autoincrement,
   column2 datatype,
   column3 datatype,
   .....
   columnn datatype,
);

example

consider company table to be created as follows −

sqlite> create table company(
   id integer primary key autoincrement,
   name           text      not null,
   age            int       not null,
   address        char(50),
   salary         real
);

now, insert the following records into table company −

insert into company (name,age,address,salary)
values ( 'paul', 32, 'california', 20000.00 );

insert into company (name,age,address,salary)
values ('allen', 25, 'texas', 15000.00 );

insert into company (name,age,address,salary)
values ('teddy', 23, 'norway', 20000.00 );

insert into company (name,age,address,salary)
values ( 'mark', 25, 'rich-mond ', 65000.00 );

insert into company (name,age,address,salary)
values ( 'david', 27, 'texas', 85000.00 );

insert into company (name,age,address,salary)
values ( 'kim', 22, 'south-hall', 45000.00 );

insert into company (name,age,address,salary)
values ( 'james', 24, 'houston', 10000.00 );

this will insert 7 tuples into the table company and company will have the following records −

id          name        age         address     salary
----------  ----------  ----------  ----------  ----------
1           paul        32          california  20000.0
2           allen       25          texas       15000.0
3           teddy       23          norway      20000.0
4           mark        25          rich-mond   65000.0
5           david       27          texas       85000.0
6           kim         22          south-hall  45000.0
7           james       24          houston     10000.0

Previous Lesson

Next Lesson