differnce between read work file 1 and read work file once?
why we are using work file once?
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Answer Posted / satya
To answer why do we use READ WORK FILE 1 ONCE
It is generally used when you specifically want to know if
the input file is empty programatically and if you would
like to handle the way you wanted if the file is empty,just
like below,
READ work 1 ONCE #WORK
AT END OF FILE
Write "Input empty"
terminate 99
END-ENDFILE
this piece of code can be placed at the begining of your
program and this helps to avoid unnecessary entry into
programming statements with empty file in input, unless
expected
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