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.

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 …

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 …

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 …

NVL stands for "null value logic" and is used primarily to provide more meaningful data when NULL values are encountered in query results. You would use the SQL NVL function when …

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.

SQL NVL function is used to substitute a value when a null value is encountered. The syntax for the NVL function is: NVL ( string_to_be_tested, replace_with_if_null ) First attribute is the …

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 …

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 …