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SQLite Autoincrement (Automatic Increment)

The SQLite AUTOINCREMENT keyword is used to automatically increment the value of a field in a table. We can use the AUTOINCREMENT keyword to automatically increment the value of a field when creating a table with a specific column name.

Keywords AUTOINCREMENT Can only be used with INTEGER fields.

Syntax

AUTOINCREMENTBasic usage of keywords is as follows-

CREATE TABLE table_name(
   column1 INTEGER AUTOINCREMENT,
   column2 datatype,
   column3 datatype,
   .....
   columnN datatype,
;

Online Examples

Consider the following created COMPANY table-

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 the 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 ;

Cela insérera dans la table COMPANY7tuple, et COMPANY aura les enregistrements suivants-

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