MS SQL Server Concepts and Programming Question:
What Happens If NULL Values Are Involved in Arithmetic Operations?
Answer:
If NULL values are involved in arithmetic operations, the result will be numeric NULL values. The following tutorial script shows you some good examples:
SELECT 7+NULL;
GO
-----------
NULL
SELECT 10.02*NULL;
GO
-----------
NULL
SELECT 4.988E+10/NULL;
GO
-----------
NULL
SELECT 7+NULL;
GO
-----------
NULL
SELECT 10.02*NULL;
GO
-----------
NULL
SELECT 4.988E+10/NULL;
GO
-----------
NULL
| Previous Question | Next Question |
| How To Assign NULL Values to Variables or Columns? | What Happens If NULL Values Are Involved in String Operations? |