No Group By Function

Revision as of 11:52, 19 July 2012 by Connor (talk | contribs) (Created page with "<div class='err'> <div class=params>schema:gisq</div> <div class = "link e-oracle">ORA-00937: not a single-group group function</div> <div class = "link e-mysql">Error 1140 Mi...")
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Usually we must have a GROUP BY clause if in aggregate function (such as SUM or COUNT) is used.

The exception is when only aggregate functions are used on the SELECT clause. If we mix aggregate and non-aggregate values then there must be a GROUP BY clause.


  • Remove the offending field from the SELECT line
  • Add the field to the GROUP BY clause
  • Aggregate the offending field

SELECT name, MAX(population)
  FROM bbc