Data Base Management

       The Data Base Management (DBMS) system provides maintenance and
       custom reporting for the system's data files.  The data files
       processed may be standard MPAC data files or any additional data
       files as defined by the user.

       Data files are defined or established via standard file
       maintenance functions for data file specifications, data item
       specifications, and index specifications.  Data file
       specifications provide for descriptions and file names of the
       system's data files.  Data item specifications provide for
       descriptions of the data files' individual fields including file
       name, field sequence number, field name, description, data type,
       length, and (optionally) number of decimal places.  Index
       specifications provide information relating to the data files'
       perpetual indexes including file name, index number, field
       number, and field name.  The standard file maintenance functions
       of enter, change, delete, inquire, copy, select data items,
       import, export, and print are provided for each of the DBMS
       system's specification files.

       The standard file maintenance functions are also made available
       for any data file entered into the specifications data base.
       Data files to be maintained or reported are selected via the
       standard MPAC file selection interface.  The user has the option
       to select an individual file by name, display a range of file
       names for selection by number, or list all files for selection by
       number.

       Listing functions are made available in sequence by any perpetual
       index specified for a particular data file.  Ranges of records to
       be reported may be selected based on the sequence selected.
       The data items to be processed by file maintenance and listing
       functions are determined via the function for data item
       selection.  Reports may be taken in screen display or hardcopy
       form.  Depending on the data items selected, reports may be 80
       columns or 132 columns wide with a single report line per data
       record, or may be 132 columns wide with multiple report lines per
       data record.

       Data Base Management Functions:
               Data file specifications
               Data item specifications
               Index specifications
               Data base file maintenance
               System management