MOD function returns the remainder of a number divided by another number.
Syntax:
select MOD(m,n) from dual;
It is the mathematical expression m MOD n.
m MOD n returns remainder of m divided by n.
Mathematical Explanation :-
m ≡ b (mod n) means (m – b) is divisible by n where b is an integer.
12 ≡ 2 (mod 5) means (12 -2) is divisible by 5. ie 10 is divisible by 5.
12 ≡ 0 ( mod 12) means (12 – 0) is divisible by 12.
Examples :-
1) select MOD(10,3) from dual;
MOD(10,3)
—————
1
2) select MOD(3,0) from dual;
MOD(3,0)
—————
3
2) select MOD(3,5) from dual;
MOD(3,5)
—————
3
Some more examples
| MOD(5,2) | 1 |
| MOD(5,0) | 5 |
| MOD(5,5) | 0 |
| MOD(2,5) | 2 |
| MOD(-2,5) | -2 |
| MOD(5,-1) | 1 |
| MOD(5,0.5) | 0 |
| MOD(5,1.2) | 0.2 |
Oracle has introduced another function REMAINDER in 10g version. Note that MOD and REMAINDER function looks similar but not exactly. Explained in another post.
