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Target = REFERENCE (RF), EXTERNAL ECHO (XE), FILE STATUS (FST)
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Retrieves the next record from a file. If the record is locked by another
user, it immediately returns with a message of "conflict" in EXTERNAL ECHO
and a status of 3 in FILE STATUS.
This is particularly useful after having positioned the file pointer directly
ahead of a record with the verb BEGIN.
The reference of the record is written to the target noun REFERENCE.
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GET NOWAIT NEXT in file FILE
FILE is the name of the file whose NEXT record is to be accessed.
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SEE ALSO: GET WAIT NEXT / GET NOWAIT LOCK NEXT / BEGIN
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