Important Points About SQL Server COALESCE() Function

COALESCE() Function in SQL Server

The SQL Server COALESCE() function is used to handle NULL values. The NULL values are replaced with the user-given value during the expression value evaluation process....

Syntax

SQL Server COALESCE() function syntax is:...

SQL Server COALESCE() Function Example

Let us look at some examples of the COALESCE() function in SQL server....

Important Points About SQL Server COALESCE() Function

The COALESCE() function in SQL Server is used to handle NULL values effectively by replacing them with user-defined values during expression evaluation. All expressions within the COALESCE() function must have the same data type to ensure proper evaluation and return of values. The COALESCE() function is available in SQL Server (all supported versions), Azure SQL Database, Azure SQL Managed Instance, Azure Synapse Analytics, and Parallel Data Warehouse....