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The Oracle NVL() function allows you to replace null with a more meaningful alternative in the results of a query. The following shows the syntax of the NVL() function: NVL(e1, e2) Code language: SQL (Structured Query Language) (sql) The NVL() function accepts two arguments. If e1 evaluates to null, then NVL() function returns e2.
The SQL Server ISNULL() function lets you return an alternative value when an expression is NULL: SELECT ProductName, UnitPrice * (UnitsInStock + ISNULL(UnitsOnOrder, 0)) FROM Products;
19 sty 2009 · Are there any nvl() equivalent functions in SQL? Or something close enough to be used in the same way in certain scenarios?
28 paź 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 the potential of NVL. Basic Examples. Numbers: Imagine you have a table named salaries with the columns name and bonus.
Let's look at some Oracle NVL function examples and explore how to use the NVL function in Oracle/PLSQL. For example: SELECT NVL(supplier_city, 'n/a') FROM suppliers; The SQL statement above would return 'n/a' if the supplier_city field contained a null value. Otherwise, it would return the supplier_city value. Another example using the NVL ...
15 mar 2022 · Get an overview of the NVL and NVL2 SQL functions along with examples of their use for correcting null values in reports.
8 cze 2022 · Example – Syntax 1. Here’s a basic example that demonstrates the first syntax of the NVL() function: SELECT NVL( null, 'No Value' ); Result: No Value. In this case, I used NVL() to replace the NULL value with No Value. Here’s what happens when the first argument is not NULL: SELECT NVL( 'Spicy', 'No Value' ); Result: Spicy
