SQL Server The SQL Server ISNULL() function lets you return an alternative value when an expression is NULL:

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

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 …

NVL lets you replace null (returned as a blank) with a string in the results of a query. If expr1 is null, then NVL returns expr2. If expr1 is not null, then NVL returns expr1. The arguments expr1 and expr2 can …

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.

Aug 8, 2024 · The function can be used only in the WHERE clause of a query. It takes as an argument a condition and returns TRUE if the condition is FALSE or UNKNOWN and FALSE if the condition is …

May 3, 2025 · The NVL function in SQL replaces NULL values with a default. Learn how to use it, understand the syntax, and see how it compares to COALESCE for SQL queries.

The SQL NVL function, often referred to as COALESCE in some database systems, is used to handle NULL values in a database query. It allows you to replace NULL values with a specified default value.

Oct 28, 2023 · Introduction to NVL Function. The NVL function in SQL is a means to handle NULL values effectively. It allows you to replace NULL values with a default or specified value. Primarily …

Among various functions that cater to this requirement, the NVL () function is often a favorite among SQL developers and database administrators. In this article, we will delve deep into what NVL () is, …