Home Sql SQL Add Column
Questions:Ask|Latest

 
 

Share on Google+Share on Google+

SQL Add Column

Advertisement
SQL Add Column is used to add a new column in the existing table.

SQL Add Column

     

SQL Add Column is used to add a new column in the existing table.

Understand with Example

The Tutorial illustrate an example from SQL Add Column. To understand this example, we create a table 'Stu_Table'. The createtable statement construct a table name 'Stu_Table' with Table attribute like field name and data type.

Create Table Stu_Table

 

 

 

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

Insert data into Stu_Table

The insert into add the records or rows into the table '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 modifies and ADD Keywords add a new column to the table. The Syntax for the Add Column is given as below:  

ALTER TABLE table_name
ADD column_name column-definition

SQL Add Colum Query

The given below Query define a Alter Table that modifies and add a new column 'Stu_Class' to the table 'Stu_Table'.

Alter Table Stu_Table add Stu_Class varchar(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

 

Advertisements

If you enjoyed this post then why not add us on Google+? Add us to your Circles



Liked it!  Share this Tutorial


Follow us on Twitter, or add us on Facebook or Google Plus to keep you updated with the recent trends of Java and other open source platforms.

Posted on: December 20, 2008

Related Tutorials

Ask Questions?    Discuss: SQL Add Column  

Post your Comment


Your Name (*) :
Your Email :
Subject (*):
Your Comment (*):
  Reload Image
 
 
Comments
venkata
July 27, 2012
about the query written above

i want to insert the values into stu_class also can you give me the query
DMCA.com