6.2.23.3 USING Phrase
-
file-name-2, file-name-3, ...
-
Specifies the input files.
During the MERGE operation, all the records on file-name-2, file-name-3,
... (that is, the input files) are transferred to file-name-1. At the
time the MERGE statement is executed, these files must not be open. The
input files are automatically opened, read, and closed, and if DECLARATIVE
procedures are specified for these files for input operations, the files
will be driven for errors if errors occur.
All input files must specify sequential or dynamic access mode and be
described in FD entries in the Data Division.
If file-name-1 contains variable-length records, the size of the records
contained in the input files (file-name-2, file-name-3, ...) must not be
less than the smallest record nor greater than the largest record
described for file-name-1. If file-name-1 contains fixed-length records,
the size of the records contained in the input files must not be greater
than the largest record described for file-name-1. For more information,
see the IBM COBOL Programming Guide for your platform.
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