Creating aggregations
This chapter uses data gathered by the National UFO Reporting Center. The data is contained in the Incidents table and in this lesson, you will be aggregating values in the DurationSeconds column.
Questo esercizio fa parte del corso
Intermediate SQL Server
Istruzioni dell'esercizio
Write a T-SQL query which will return the average, minimum, and maximum values of the DurationSeconds column.
Esercizio pratico interattivo
Prova a risolvere questo esercizio completando il codice di esempio.
-- Calculate the average, minimum and maximum
SELECT ___ AS Average,
___ AS Minimum,
___ AS Maximum
FROM Incidents