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.

SQL 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
  1. create schema ss1
  2. go
  3. create table ss1.emp(empId int,empname varchar(15))
  4. go
  5. insert into ss1.emp values(1,'d')
  6. go
  7. select * from ss1.emp
Output
schema in sql server
schema in sql server

Creation of table in schema

  1. create table ss1.emp2(empAdd varchar(15))
Output
schema_in_sql_serve.jpg

Creation of view in schema

  1. create view ss1.v
  2. as select * from ss1.emp
Output
schema_in_sql_serve_2012.jpg
  1. select * from ss1.v
schema_in_sql_serve_2012.jpg

Alter SQL Schema

First of all we are creating a schema and then we alter that schema
  1. create schema ss2
  2. go
  3. alter schema ss2 transfer ss1.emp
  4. go
  5. select * from ss2.emp
Output
Alter SQL Schema

Dropping a SQL Schema

  1. drop table ss2.emp
  2. go
  3. drop schema ss2
Output
Dropping a SQL Schema

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.