Indexes
Understanding Indexes : To understand what are Indexes, let’s take a very common example of Index at the back of a book. In Book, Index displays the reference page number for each topic.For...
Category: ETL Testing
Introduction..
No Business can run without DATA. Infact ,the success of any business organization depends upon how effectively it analyzes and acts on data. But , How Data is important for Business ? The Success...
Data Definition Language ( DDL Commands )
What are DDL Commands ?? Data Definition Language ( DDL Commands ) as the name suggests , are used to define and modify the database objects definitions. They are auto – saved or Auto –...
SQL Statements .
What are SQL Statements ?? SQL Statements are basically commands that are used for : Defining the database objects Manipulating the data Controlling the transactions Deciding the access level of the users for database...