Tagged: ETL Testing

ETL Testing Life Cycle

ETL Testing Life Cycle

Like any other testing process , ETL Testing also goes through various phases called ETL Testing Life Cycle 1. Business and Requirement Analysis : This step involves reviewing and analyzing – Business Requirement Document...

Types of Constraints

Types of Constraints

In the Previous post we studied about ‘ What are Constraints ? ‘. Now we will read about different Types of Constraints. What are the Different Types of Constraints : 1. NOT NULL Constraint...

Backup Table in SQL

Backup Table in SQL

Backup Table in SQL, as the name suggests, is the copy of an existing table whose backup we need to take . Constraints on the original table are not copied in the Backup table...

Order By Clause in SQL

Order By Clause in SQL

Order By Clause in SQL is used to sort the resultset in ascending or descending order. Key – Points : By default it sorts the result in Ascending order. Asc Keyword is used for...