Writing Programs That Use Subfile Transaction Files
Typically, you use a subfile TRANSACTION file to read a group of records
from or write a group of record to a display device. To use a subfile TRANSACTION
file in an ILE COBOL program, you must:
- Name the file through a file control entry in the FILE-CONTROL paragraph
of the Environment Division
- Describe the file through a file description entry in the Data Division
- Use extensions to Procedure Division statements that support transaction
processing.
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