Difference between revisions of "MOD"
From SQLZOO
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| − | SELECT | + | SELECT yr % 10, |
yr, city | yr, city | ||
FROM games | FROM games | ||
Revision as of 09:07, 13 July 2012
| MOD(a,b) | ||
|---|---|---|
| Engine | OK | Alternative |
| ingres | Yes | |
| mysql | Yes | a % b |
| oracle | Yes | |
| postgres | Yes | a % b |
| sqlserver | No | a % b |
MOD
MOD(a,b) returns the remainder when a is divied by b
If you use MOD(a, 2) you get 0 for even numbers and 1 for odd numbers.
If you use MOD(a, 10) you get the last digit of the number a.
MOD(27,2) -> 1 MOD(27,10) -> 7
With a GROUP BY region statement each region shows up just once. The SUM column gives the total for each region.
SELECT MOD(yr,10), yr, city FROM games
SELECT yr % 10, yr, city FROM games
See also
