Handling NULL Values
When performing arithmetic operations involving NULL values, the result is NULL unless handled explicitly using the ISNULL or COALESCE functions.
Example:
SELECT ISNULL(10, 0) / ISNULL(NULL, 1) AS Result;
Output:
10
In the above example, ISNULL is used to replace the NULL value with 0 before division, resulting in 10.
Arithmetic Operators in SQL Server
Arithmetic operators play a crucial role in performing mathematical calculations within SQL Server. These operators allow you to perform addition, subtraction, multiplication, division, and more on numeric data stored in your database tables. In this article, we’ll explore the various arithmetic operators available in SQL Server, discuss their usage with examples, and provide outputs to illustrate their functionality, all explained in an easy-to-understand manner for beginners.
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