Connecting Through SQL Server Windows Authentication and SQL Server Authentication

Connecting Through SQL Server Windows Authentication Windows Authentication is the default authentication mode and is much more secure...

What is De-normalization?

What is De-normalization? De-normalization is the process of attempting to optimize the performance of a database by adding redu...

What are primary keys and foreign keys?

What are primary keys and foreign keys? Primary keys are the unique identifiers for each row. They must contain unique values and can...

What is PRIMARY KEY?

What is PRIMARY KEY? A PRIMARY KEY constraint is a unique identifier for a row within a database table. Every table should have a p...

What is use of EXCEPT Clause?

What is CLR? In SQL Server 2008, SQL Server objects such as user-defined functions can be created using such CLR languages. This CLR l...

What is the difference between UNION and UNION ALL?

What do you mean by Table Sample? TABLE SAMPLE allows you to extract a sampling of rows from a table in the FROM clause. The rows r...