Aggregate window functions
There are several aggregate window functions available to you. In this exercise, we will look at reviewing multiple aggregates over the same window.
Our window this time will be the entire data set, meaning that our OVER() clause will remain empty.
Latihan ini adalah bagian dari kursus
Time Series Analysis in SQL Server
Petunjuk latihan
- Fill in the correct aggregate function for each column in the result set.
Latihan interaktif praktis
Cobalah latihan ini dengan menyelesaikan kode contoh berikut.
SELECT
ir.IncidentDate,
ir.NumberOfIncidents,
-- Fill in the correct aggregate functions
-- You do not need to fill in the OVER clause
___(ir.NumberOfIncidents) OVER () AS SumOfIncidents,
___(ir.NumberOfIncidents) OVER () AS LowestNumberOfIncidents,
___(ir.NumberOfIncidents) OVER () AS HighestNumberOfIncidents,
___(ir.NumberOfIncidents) OVER () AS CountOfIncidents
FROM dbo.IncidentRollup ir
WHERE
ir.IncidentDate BETWEEN '2019-07-01' AND '2019-07-31'
AND ir.IncidentTypeID = 3;