This tutorial shows you how to use the Oracle NVL () function to substitute null with a more meaningful alternative.

If expr1 is numeric, then Oracle Database determines which argument has the highest numeric precedence, implicitly converts the other argument to that data type, and returns that data type.

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This Oracle tutorial explains how to use the Oracle / PLSQL NVL function with syntax and examples. The Oracle / PLSQL NVL function lets you substitute a value when a null value is encountered.

NVL function in Oracle NVL is an advanced function that the Oracle database supports. It is used to substitute a value, when a NULL value is encountered. The NVL function is supported in the various …

In this Oracle Tutorial we will learn about NVL function with examples. NVL stands for Null Value.

The NVL function allows you to replace null values with a default value. If the value in the first parameter is null, the function returns the value in the second parameter.

Jun 8, 2022 · With this syntax, we can provide any number of arguments, and NVL() will return the first non-NULL value. This syntax makes NVL() a synonym for COALESCE() (which returns the first non …

Dec 27, 2023 · Thankfully, Oracle provides a simple yet powerful function to substitute NULLs – NVL. In this comprehensive guide, you‘ll unlock the full potential of NVL to easily replace NULL values in …

Nov 7, 2025 · Learn the Oracle NVL function. This simple SQL guide explains how to replace NULL values with a default value, with easy-to-follow examples.