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what is the difference between clear and reset opcodes and
open and close opcodes?please tell me in real time senario
with example please?
And
What is the use of SFLNXTCHG?Where we can use this?
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Answer Posted / swadesh
clear and reset both opcodes are used for clearing the
fields.difference is that clear only clear but reset is
used for clear & then initialise the numeric fields with
zero and character with blanks.
OPEN & CLOSE opcodes are used for explicitly open and
close the file.In precise all files are automatically open
when these are processed by program bt at somepoint if we
want this should not be implicitly then open we use these
keywords.
SFLNXTCHG :Its always read those records which changed 2
or more times.this is declared in subfile(SFL) format not
SUBCTL format.
| Is This Answer Correct ? | 14 Yes | 8 No |
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