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STDEV vs STDEVP
CREATE TABLE Population ( Value INT NOT NULL ); GO DECLARE @counter smallint; SET @counter = 0; WHILE @counter < 10 BEGIN INSERT INTO Population(Value) VALUES(ROUND(RAND()*100, 0)); SET @counter = @counter + 1; END; GO SELECT STDEV(Value) AS STDEV, STDEVP(Value) AS STDEVP FROM Population;
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