FLOOR: Returning the Largest Integer Less Than or Equal to a Value (SQL)
FLOOR returns the largest integer value not greater than a value.
Return the Largest Integer Less Than or Equal to a Value
FLOOR(n)
where:
n
Numeric or Alphanumeric
Is the value greater than or equal to the returned integer. For exact-value numeric arguments, the return value has an exact-value numeric type. For alphanumeric or floating-point arguments, the return value has a floating-point type.
Returning an Integer Less Than or Equal to a Value
FLOOR returns an integer less than or equal to the argument.
FLOOR(N)
For N=1.23, the result is 1.
For N=-1.23, the result is -2.