IBM Mainframe Forum

Hello can someone please help me learn arrays for my work.

My in-file has many records with the same acct# but different book-ids (one acct# can purchase many books)

My boss asked me to create a program where I show a single acct# with multiple book-ids on the same record (to help show buying trends from a single acct#)

sample output



Does anyone have some sample code I can work from as the easytrieve manual doesnt show anything.

thanks for your time,
N.

Hello and welcome to the forum,

Before you can code, you need to determine the rules.

One of particular importance is the maximum book-id's for an acct. . . What is to be done where there are too many to fit on one line?

If the input data is sorted by acct and book-id it is a straightforwrd process. If the data is not already sorted in this sequence, a subset of the file containing the acct/biook-id could be sorted for use as input.