MS SQL Server Interview Question:

What Is the Default Schema of Your Login Session in MS SQL Server?

Submitted by: Administrator

When you login to a SQL Server and select a database to use, SQL Server will assign your login session a default schema. The schema name can be omitted when you refer to objects in the default schema. Here is what you should remember about default schema:

* The default schema of your login session in the current database is the default schema assigned to the current database level principal - database user.
* If you are referring to an object in the default schema, you do not need to specify the schema name.
* If you are referring to an object outside the default schema, you must specify the schema name.

The tutorial exercise below shows you how to verify your default schema:

-- Login with "ggl_login"

USE GlobalGuideLineDatabase;
GO
Changed database context to 'GlobalGuideLineDatabase'.

PRINT User_Name();
GO
ggl_User

SELECT name, default_schema_name
FROM sys.database_principals WHERE type = 'S';
GO
<pre>name default_schema_name
-------------------- --------------------
dbo dbo
guest guest
INFORMATION_SCHEMA NULL
sys NULL
ggl_User dbo</pre>
The last query shows that the default schema for "ggl_login" in "GlobalGuideLineDatabase" is &qu
Submitted by: Administrator