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SQL Server FAQ - Performing Comparison on Exact Numbers

By: FYIcenter.com

(Continued from previous topic...)

How To Perform Comparison on Exact Numbers?

Comparison operations on exact numbers of data types: BIT, INT, NUMERIC, etc., are very easy to understand. Here are some simple examples:

-- BIT value comparison
DECLARE @x BIT, @y BIT;
SET @x = 0; 
SET @y = 1; 
SELECT CASE WHEN @x > @y THEN 'True' ELSE 'False' END;
GO
False

DECLARE @x INT, @y INT;
SET @x = -5; 
SET @y = 9; 
SELECT CASE WHEN @x > @y THEN 'True' ELSE 'False' END;
GO
False

DECLARE @x NUMERIC(9,2), @y NUMERIC(9,2);
SET @x = -5.25; 
SET @y = -5.15; 
SELECT CASE WHEN @x > @y THEN 'True' ELSE 'False' END;
GO
False

(Continued on next topic...)

  1. What Is a Boolean Value?
  2. What Are Conditional Expressions?
  3. What Are Comparison Operations?
  4. How To Perform Comparison on Exact Numbers?
  5. How To Perform Comparison on Floating Point Numbers?
  6. How To Perform Comparison on Date and Time Values?
  7. How To Perform Comparison on Character Strings?
  8. What To Test Value Ranges with the BETWEEN Operator?
  9. What To Test Value Lists with the IN Operator?
  10. What To Perform Pattern Match with the LIKE Operator?
  11. How To Use Wildcard Characters in LIKE Operations?
  12. How To Test Subquery Results with the EXISTS Operator?
  13. How To Test Values Returned by a Subquery with the IN Operator?
  14. What Are Logical/Boolean Operations?

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