SQL ISNULL (), NVL (), IFNULL () and COALESCE () Functions
SQL Server The SQL Server ISNULL() function lets you return an alternative value when an expression is NULL:
Oracle NVL () Function
This tutorial shows you how to use the Oracle NVL () function to substitute null with a more meaningful alternative.
SQL NVL () Explained - Database.Guide
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 - Oracle Help Center
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 …
Understanding NVL, NVL2, COALESCE, and NULLIF in SQL
Dec 9, 2024 · Handling NULL values effectively is a common challenge in SQL. Functions like NVL, NVL2, COALESCE, and NULLIF offer powerful ways to manage NULL values and conditionally …
NVL in SQL Explained: Simplify Null Value Handling Efficiently
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.
What is NVL in SQL – Complete guide with example - codedamn
Oct 28, 2023 · When diving into the realm of SQL, the NVL function stands out as a versatile tool to handle NULL values. This section will provide you with hands-on, practical examples demonstrating …
SQL General Functions - GeeksforGeeks
Aug 8, 2024 · In SQL, NVL () converts a null value to an actual value. Data types that can be used are date, character and number. The data type must match with each other i.e. expr1 and expr2 must be …
SQL NVL - Syntax, Use Cases, and Examples | Hightouch
The complete guide to SQL NVL. Learn the syntax, parameters, use cases and find practical examples in the Hightouch SQL Dictionary.
SQL NVL function - TutorialsCampus
NVL function is used to replace NULL values in the existing table with specified value in result set. NVL function works on ORACLE database. NVL function returns numeric or string values based on the …