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CRRE_CREATE_STRUKTUR_TAB - Sets up internal structure table
CRRE_FILL_WA - Handling of logical databases via sequential file
CRRE_FIRST_RECORD - Positioning on first record of an archive tape
CRRE_SET_SFILE - Retrieve sequential file number for archiving
CRRE_TEST_SEQ_FILE - Test whether sequential processing applies (in logical data base)
CRRE_TRANSFER_STRUKTUR_TAB - Transfers structure table to calling program
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