here the quantity on date 12 is 100 and there is no data for 14,15,16,18,19 dates.Sometimes in development we require the data for all dates.We know the quantity on 14,15,16 is just the quantity on date 12.So we use interval match to match the data on the missing dates.
see 'Fill values in a data range using previous values' in the attached File
Hi Manish, I've created a document on this and posted on our Qlikview community. I explained with an example and few advantages of it. Attaching the document along with the QVW file. Here is the link http://community.qlik.com/docs/DOC-3557 Regards. Siva