1. SQL Reference Guide
  2. Built-in Functions
  3. Functions of Mathematical Operations
  4. floor function

floor function

The floor function returns the largest integer that is less than or equal to the specified expression.

Syntax:

number floor(n)

Semantics:

  • n: The argument n is an expression that resolves to a number.
  • return type:
    • Returns the same type as the argument n.
    • Returns a NULL value in the following cases:
      • n resolves to a NULL value
      • n does not resolve to a number
    • Returns NaN if n resolves to NaN.
    • Returns a positive/negative infinity if n resolves to the respective infinity.
    • Returns a positive/negative zero if n resolves to the respective zero value.

Example 12-81 floor function

SELECT floor(n) FROM Userstocks
Value of n Output
1.34 1.0
-1.34 -2.0
pi() 3.0