Oracle® Database SQL Language Reference 11g Release 2 (11.2) E41084-02 |
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MOD
returns the remainder of n2
divided by n1
. Returns n2
if n1
is 0.
This function takes as arguments any numeric data type or any nonnumeric data type that can be implicitly converted to a numeric data type. Oracle determines the argument with the highest numeric precedence, implicitly converts the remaining arguments to that data type, and returns that data type.
See Also:
Table 3-10, "Implicit Type Conversion Matrix" for more information on implicit conversion and "Numeric Precedence" for information on numeric precedenceThe following example returns the remainder of 11 divided by 4:
SELECT MOD(11,4) "Modulus" FROM DUAL; Modulus ---------- 3
This function behaves differently from the classical mathematical modulus function when m
is negative. The classical modulus can be expressed using the MOD
function with this formula:
n2 - n1 * FLOOR(n2/n1)
The following table illustrates the difference between the MOD
function and the classical modulus:
n2 | n1 | MOD(n2,n1) | Classical Modulus |
---|---|---|---|
11 |
4 |
3 |
3 |
11 |
-4 |
3 |
-1 |
-11 |
4 |
-3 |
1 |
-11 |
-4 |
-3 |
-3 |