SQL Add Column Int

SQL Add Column Int is used to add new column, whose field data type is integer.

SQL Add Column Int

SQL Add Column Int

     

SQL Add Column Int is used to add new column, whose field data type is integer. 

Understand with Example

The Tutorial illustrate a SQL Add Column Int example .In this Tutorial we create a table Stu_Table using create statement. The insert into add the records or rows to the table. The select statement return you the records from a table 'Stu_Table'.

Create Table Stu_Table

create table Stu_Table(Stu_Id integer(2), Stu_Name varchar(15))

Insert data into Stu_Table

insert into Stu_Table values(1,'Komal');
insert into Stu_Table values(2,'Ajay');
insert into Stu_Table values(3,'Rakesh');
insert into Stu_Table values(4,'Bhanu');
insert into Stu_Table values(5,'Santosh);

 Stu_Table

Stu_Id Stu_Name
1 Komal
2 Ajay
3 Rakesh
4 Bhanu
5 Santosh

SQL Add Column Syntax

The ALTER TABLE is used to alter the table table_name.The Add keyword is used to add a new column in a table.

ALTER TABLE table_name
ADD column_name column-definition

SQL Add Colum Query

The given below example shows you a modified Stu_Table using Alter keywords, which add a new column Stu_Class using add keyword, whose data is integer type.

Alter Table Stu_Table add Stu_Class int(10)

View data  Stu_Table

Stu_Id Stu_Name Stu_Class
1 Komal NULL
2 Ajay NULL
3 Rakesh NULL
4 Bhanu NULL
5 Santosh NULL