what is nvl function in oracle with example
SQL > SQL NULL > NVL Function. The NVL( ) function is available in Oracle, and not in MySQL or SQL Server. This function is used to replace NULL value with another value. It is similar to the IFNULL Function in MySQL and the ISNULL Function in SQL Server. For example, if we have the following table, Table Sales_Data.
Oracle SQL / PLSQL uses NVL function to substitute a value whenever a NULL is encountered. We Will be looking at: 1 Syntax for the NVL function in Oracle SQL / PLSQL is: 2 Example 1: Using Oracle SQL / PLSQL NVL Function with numbers and string.