SUM

From SQLZoo
Jump to navigation Jump to search
Compatibility
SUM(f)
EngineOKAlternative
ingresYes
oracleYes
postgresYes
sqlserverYes

SUM

SUM adds a whole column of values.

SUM is an aggregate function it is normally used with GROUP BY.

   SELECT region, SUM(population)
    FROM bbc
   GROUP BY region 

With a GROUP BY region statement each region shows up just once. The SUM column gives the total for each region.

SELECT region, SUM(population)
  FROM bbc
 GROUP BY region

See also

Language:Project:Language policy English  • Deutsch
DataWars, Data Science Practice Projects - LogoDataWars: Practice Data Science/Analysis with +100 Real Life Projects