group by officer怎么写count？

Question

我必须计算每个官员的案例，其中 Survey='abc' and Activity='FI' and (outcome='C' OR outcome='D')

这是我的全部SQL

SELECT officer, NULL,
    SUM(IIF(ISNUMERIC(mkt) = TRUE AND Survey='dasda' AND Activity='FI' AND Outcome = 'C', Totalmin, 0 ) / 60),
    SUM(Non), SUM(ICC), NULL, NULL, NULL, COUNT(IIF(Survey='abc' AND Activity='FI' AND (Outcome='C'or Outcome='D'), Totalmin, 0))
FROM [DB$]
GROUP BY officer " '

有问题的部分是

Count(IIF(  Survey='abc' and Activity='FI' and (Outcome='C'or Outcome='D'), Totalmin, 0 ))

但是，因为我生成的结果不起作用。统计结果远不止答案。

Answer 1

COUNT() 计算非 NULL 值的数量。因为0不为null，所以算进去了。这里有两个选项：

COUNT(IIF(Survey='abc' AND Activity='FI' AND Outcome IN ('C', 'D'), Totalmin, NULL))

或

SUM(IIF(Survey='abc' AND Activity='FI' AND Outcome IN ('C', 'D') AND Totalmin IS NOT NULL, 1, 0))

group by officer怎么写count？

How to write count if group by officer?

sql

excel

vba

ado