Informatica PowerCenter

Question

I have a flat file as source which contains two columns named "Event begin time" and "event end time" that has both date and time in it . How can I calculate MOU(minutes of usage) for it using Informatica. Please help me..

Thanks Vinay

Answer 1

DATE_DIFF函数可用于计算持续时间：

DATE_DIFF( Event_End_Time, Event_Begin_Time, MI) 

Answer 2

First you need Informatica to know that each of the 2 dates from the flat file are indeed dates and the format from the INCOMING date fields, you will do this by passing them to an expression transformaton ie if they are in 'DD/MM/YYYY HH24:MI:SS' then the expression to turn them into date/time in informatica will be TO_DATE (EVENT_BEGIN_TIME, 'DD/MM/YYYY HH24:MI:SS') (You'll have to do same for event end time... I've used name with underscores instead of spaces as informatica doesnt allow spaces in port names)

Then you'll use datediff to subtract the begin time from the end time... lets say you named the 2 variable ports which contain the above calculation as v_BEGIN and v_END, the calculation for minutes will be DATE_DIFF(v_BEGIN, v_END, 'MI')

Answer 3

Simplest way of achieving it : Consider T1 and T2 as Start time and end time (Ensure that,both are in DATE Format).

In variable calculate T2-T1 : This will give you difference in days. Multiply it by ( 24*60 ) will give you number of minutes. So, 24*60*(T2-T1).