HP 3000 Manuals

SORT-MERGE/XL Programmer's Guide

Using Record Input and Output 

As shown in Figure 3-1, record input and output are processed after
SORT-MERGE/XL is intialized and before SORT-MERGE/XL is ended.


          Figure 3-1.  Record Input and Output 

You can use record input or record output when you wish to alter the
records.

Choose the input by record option when you want to sort a set of input
that is available to you one record at a time.  This happens when the
records you want to sort are created within the sorting program or when
records are intended to be received interactively (for example, if your
program accepts input from a terminal).  Record input is only available
for SORT/XL.

Choose the output by record option when you want to sort or merge
information during a program's execution without directly storing the
information.  For example, use it if you want to display a sorted list to
a user's terminal, or if you want a chance to modify the output before
storing in a file.

MPE/iX 5.0 Documentation