How to automatically increment the 'Id' row of a table ?

Question

I have issues when I am inserting values in my table 'Table', the 'Id' row doesn't increment automatically like it is suposed to do. How to make the table know I want it to autoincrement when adding information (other rows) in the table?

Akshay Shedwad · Answer

You use in the table Column constraints AUTO_INCREMENT and IDENTITY that associate a column with a sequence. This sequence automatically increments the column value as new rows are added. If you use SQL Server you follow IDENTITY keyword to auto increment Feature. For Example: CREATE TABLE Employee( empId int IDENTITY(1,1) PRIMARY KEY , LastName varchar (150) NOT NULL , FirstName varchar (150) ); IDENTITY(1,1) means number start from 1 and it increment by 1, if you want increment by 2 field then set IDENTITY(1,2). If you use MySQL you follow AUTO_INCREMENT keyword to auto increment Feature.when you add new data , it automatically increments by 1. For Example, CREATE TABLE Employee( empId int NOT NULL AUTO_INCREMENT, LastName varchar (150) NOT NULL , FirstName varchar (150), PRIMARY KEY (empId) ); If you do not want to modify table then go with jquey.Jquery automatically increament your id by 1. Full code, guildline and demo available on codepen website: https://codepen.io/peker-ercan/pen/qJObwy

Jignesh Kumar · Answer

Hi, Please use this link, https://www.edureka.co/blog/sql-auto-increment/

Vertika Chauhan · Answer

Set the id column property as identity

How to automatically increment the 'Id' row of a table ?

Answers (3)