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Author Topic: Iolist for internal keys  (Read 70 times)

Peter.Higgins

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Iolist for internal keys
« on: November 21, 2020, 02:21:32 PM »
Is there a way in 2017 or later to write an IOlist for an internal mulitple field key so that the leading fields are padded with nuls?  LEN & CHR do not seem to have that ability.

Mike King

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Re: Iolist for internal keys
« Reply #1 on: November 22, 2020, 10:11:00 PM »
Not certain what you are attempting to do but if what you want is to generate a key for a file knowing the fields then you probably just need to use the KEY function.

For example if you have a  multi-segment key of something like productno, ciientno, and date as key number 3, you can generate a key string with:

k$ = KEY(fileno, kno=3, key=productno$:clientno$:date$)

This will insert any required padding and return you a key based on the values you provided.