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:
SQL IFNULL () Explained - Database.Guide
May 14, 2022 · In particular, MySQL, MariaDB, and SQLite each have an IFNULL() function that replaces any null values with another value. Other RDBMSs, such as SQL Server, Oracle, and …
MySQL IFNULL - Practical Examples of IFNULL Function
This tutorial shows you how to use MySQL IFNULL function to handle NULL values more efficiently.
ISNULL (Transact-SQL) - SQL Server | Microsoft Learn
Nov 18, 2025 · If a literal NULL is provided as check_expression, ISNULL returns the data type of the replacement_value. If a literal NULL is provided as check_expression and no …
How to use the SQL IFNULL () function - IONOS
Feb 7, 2025 · In the Structured Query Language, the SQL COALESCE () function is an important tool. However, to return a specific value when an expression is empty or NULL, you can use …
SQL IFNULL () and COALESCE () Functions: Handling NULL Values
Aug 28, 2024 · Discover how to handle NULL values in SQL using the IFNULL () and COALESCE () functions. Learn their differences and practical applications in this comprehensive guide.
SQL 'IF' & 'IFNULL' Functions: A Complete Guide - Reintech
Sep 22, 2023 · Learn to master the SQL 'IF' and 'IFNULL' functions with this complete guide. This tutorial includes code snippets and practical examples, making it an excellent resource for …
SQL - IFNULL (), ISNULL (), COALESCE () and NVL () Functions
The SQL NULL functions (IFNULL (), ISNULL (), COALESCE () and NVL ()) are used to provided alternate value of a column if it contains NULL value.
MySQL ISNULL () and IFNULL () Functions - MySQLCode
Apr 25, 2021 · In this tutorial, we will study the MySQL ISNULL() and IFNULL() functions. Checking for NULL values and handling them while displaying results is a key database …
SQL IFNULL Function | Replace NULL Values in SQL Queries
Oct 11, 2024 · Discover how to use SQL IFNULL to replace NULL values with a specified value. Explore syntax and examples for handling NULL in your SQL queries.