GROUPING_ID Function in SQL Server
The GROUPING_ID() function in SQL Server is a great tool that helps to determine the grouping levels in the grouped queries performed by the user. GROUPING_ID function is only applicable in a SELECT statement that contains a GROUP BY extension, such as ROLLUP or GROUPING function.
In complex queries where many GROUPING functions are involved calculations of the Group level of a particular row become complex. GROUPING_ID is very useful in these cases, it takes the results of multiple GROUPING functions and concatenates them into a bit vector.
By using the GROUPING_ID function we can avoid the need for multiple GROUPING functions and make row filtering conditions easier to express. Row filtering becomes easy with GROUPING_ID because the desired rows can be identified with a single condition of GROUPING_ID = n.
Syntax:
GROUPING_ID ( column1,column2,column3,.... columnN )
Explanation: The syntax of the GROUPING_ID function is quite simple. It just accepts the names of the columns as arguments on which the grouping is applied and returns an integer value that denotes the grouping level in the database.
GROUPING ID Function in SQL Server
SQL Server is a Relational Database Management System that is used to create and manipulate the database. It provides advanced security measures like encryption, access control, and auditing to protect sensitive data from unauthorized access.
It Supports a wide range of data types, including structured, semi-structured, and unstructured data, for effective data storage and management. It also Supports various programming languages and offers tools like SQL Server Management Studio for simplified database administration and development.
In this article, we are going to learn about the GROUPING_ID() Function in SQL Server. We will learn how we can implement the use of this function through various practical examples. We will learn how this function can be used with single as well as multiple columns in the SQL server.