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NVL function in Oracle PLSQL

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In this blog, we will study and understand the concept of Oracle pl sql NVL function . What is NVL function? a> NVL - - > N ull V alue L ogic b> NVL function is used to replace NULL value with another value . c> Syntax for NVL function in Oracle PL SQL           NVL (expression, replace_value) c> expression and replace value must be compatible data types. Table name: Salary_Mech_Dept Apply NVL function to Salary_Mech_Dept table:                                                                                                                           Select   S. No,             ...