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.
Este exercício faz parte do curso
Time Series Analysis in SQL Server
Instruções do exercício
- Fill in the correct aggregate function for each column in the result set.
Exercício interativo prático
Experimente este exercício completando este código de exemplo.
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;