Revision as of 15:10, 16 July 2012

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 yr % 10, yr, city
FROM games

SELECT MOD(yr,10),
       yr, city
  FROM gisq.games

SELECT MOD(yr,10),
       yr, city
  FROM games

@@ Line 22: / Line 22: @@
 <source lang='sql' class='def e-sqlserver'>SELECT yr % 10, yr, city
 FROM games
+</source>
+<source lang='sql' class='def e-oracle'>SELECT MOD(yr,10),
+       yr, city
+  FROM gisq.games
 </source>
 <source lang='sql' class='def'>SELECT MOD(yr,10),