FLOOR (Transact-SQL)
SQL Server 2005
Returns the largest integer less than or equal to the specified numeric expression.
Transact-SQL Syntax Conventions
The following example shows positive numeric, negative numeric, and currency values with the FLOOR function.
SELECT FLOOR(123.45), FLOOR(-123.45), FLOOR($123.45)
The result is the integer part of the calculated value in the same data type as numeric_expression.
--------- --------- ----------- 123 -124 123.0000