Schema in SQL Server 2012

In this article I describe schemas in SQL Server 2012.

Introduction

In this article I describe schemas in SQL Server 2012. A schema is like a container that contains database objects like tables, views etc. So let us learn about schemas, creation of schemas, how to alter schemas and how to drop schemas.

Schema:

A schema is like a namespace in C# that contains database objects. All objects within a schema must have a unique name. And the name of the schema should also be unique in the database. When we create a table, view or other object then by default it goes in the dbo schema.

Syntax:

create schema schema_name
go
<schema element>
{table defenation, view defenation etc}

Example:

create schema ss1
go
create table ss1.emp(empId int,empname varchar(15))
go
insert into ss1.emp values(1,'d')
go
select * from ss1.emp

Output:





Creation of table in schema:

create table ss1.emp2(empAdd varchar(15))

Output:



Creation of view in schema:

create view ss1.v
as select * from ss1.emp

Output:



select * from ss1.v



Alter schema:

First of all we are creating a schema and than we alter that schema:

create schema ss2
go
alter schema ss2 transfer ss1.emp
go
select * from ss2.emp

Output:



Dropping a Schema:

drop table ss2.emp
go
drop schema ss2

Output:



Summary:

In this article I described schemas in SQL Server. I hope this article has helped you to understand this topic. Please share if you know more about this. Your feedback and constructive contributions are welcome.