I'm trying to calculate percentages using SUM() to gather totals.
CONVERT(decimal(10,2), SUM(cola)/(SUM(cola)+SUM(colb)))
I've checked and SUM(cola) = 3 and SUM(colb) = 2; So I was expecting it to calculate like...
3/5 = .6; So I was hoping to get returned, 0.60,
Here's the full query:
SELECT CASE WHEN this < 0 THEN '-'
ELSE '+' END AS 'Col1',
SUM(cola) as 'this', SUM(colb) as 'that',
CONVERT(decimal(10,2), SUM(cola)/(SUM(cola)+SUM(colb)) as 'PCT'
FROM Table1
WHERE colc = 'Condition'
GROUP BY CASE WHEN this < 0 THEN '-'
ELSE '+' END
You are doing Integer division .
You need at least one operand to be a float type if you want a float result.
Thanks @Oded, (forgot to convert integers to decimal) So, this is what I changed...
SELECT CASE WHEN this < 0 THEN '-'
ELSE '+' END AS 'Col1',
SUM(cola) as 'this', SUM(colb) as 'that',
CONVERT(decimal(10,2), SUM(cola)/(CONVERT(decimal(10,2),
SUM(cola))+CONVERT(decimal(10,2), SUM(colb))) as 'PCT'
FROM Table1
WHERE colc = 'Condition'
GROUP BY CASE WHEN this < 0 THEN '-'
ELSE '+' END
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