1. Database Structure › 1.2 Database Structure and Organization › 1.2.1 Online Data Structure › 1.2.1.4 File (Database Level 3)

1.2.1.4 File (Database Level 3)

The File level is the third level within the Database
structure and is organized uniquely within each Information
Area.  The File level identifies the unique data group that
is processable as a file of information.  The types of files
that are maintained are a function of the Information Area
and Timespan to which they belong.  The files that are
maintained are defined and explained in the Database
Contents section.

The File level of the TSO Information Area is described
to illustrate the level relationship.

Figure 1-6 illustrates the Database structure through
level 3:

                           DATABASE
                               |
             +--------+--------+---------+--------+
             |        |        |         |        |
Level 1:   DETAIL   DAYS     WEEKS    MONTHS   YEARS
                      |
                      |
        +-----+-------+---------+-------+-----+
Level 2:|     |       |         |       |     |  ...etc.
      ADMIN  TSO   HARDWARE  MVS SCP  BATCH  IMS
              |   UTILIZATION
              |
             +---+-------+----------+----------+
             |           |          |          |  ...etc.
Level 3:  TSO System  TSO User  TSO User    TSO User
          Activity    Activity   Command   Interactive
                                 Counts     Usage


 Figure 1-6. File Level Structure