SQL AVERAGE TIME

Question

I have the following query in MSSQL:

select 
TRANSACTION_TYPE_ID
,COUNT(TRANSACTION_TYPE_ID)AS NUMBER_OF_TRANSACTIONS
,CAST(SUM(AMOUNT)AS DECIMAL (30,2)) AS TOTA         


        

Answer 1

One way would be to convert the time to seconds, calculate the average, and then convert it back to hours, minutes and seconds for the result.