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SQL a SQL statement statistics of the total number of classes, the total number of men and women, the respective ratio of male and female

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Select Sclass class, COUNT (*) class total number of students,
SUM (case if sgender=0 then 1 else 0 end) Number of females,
SUM (case if sgender=0 then 1 else 0 end) *1.0/count (*) Percentage of girls,
SUM (case if Sgender=1 then 1 else 0 end) Number of males,
SUM (case if Sgender=1 then 1 else 0 end) *1.0/count (*) Percentage of boys
From student GROUP by Sclass ORDER by sclass ASC

SQL a SQL statement statistics of the total number of classes, the total number of men and women, the respective ratio of male and female

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Related Keywords:
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