Database Extract Statistics report

Figure 1. Database Extract Statistics
                                            Database Extract Statistics Report


                                     -Segm Length- --Number of Segments Extracted-  Logically
               Database Segment Level    Min   Max   Phase 1    Phase 2      Total  Related DB
               -------------------------------------------------------------------------------
               DJ2E     SUBURB    01      62    62         6         77         83
                        LINKSTR   02      28    28       509       3517       4026  DJ3E
                        NSTREET   02      30    30         3         28         31
                        INSHIRE   02      20    20         6         77         83  DJ1E
                        LETRBOX   02      34    34         2         28         30
      Subtotal DJ2E                                      526       3727       4253

               DJ3E     STREET    01      32    32         0       3048       3048
                        INSUB     02      18    18         0       4026       4026  DJ2E
      Subtotal DJ3E                                        0       7074       7074

               DJ1E     SHIRE     01      53    53         0         10         10
                        SHIRENP   02      11    11         0         10         10
                        LINKSUB   02      18    18         0         85         85  DJ2E
      Subtotal DJ1E                                        0        105        105

      Grand total                                        526      10906      11432

   Phase 1 = Extract using keys    Phase 2 = Resolution of logical relationships
                                                *** End of IMS Extract Report ***

The following is a description of each column in this report.

Database
This column contains the name of the primary database and the names of the databases that are logically related to the primary database.
Segment
This column contains the names of the segments in the primary and logically related databases.
Level
The level of the segment.
Segm Length
Min
The minimum length of the segment as defined in the DBD.
Max
The maximum length of the segment as defined in the DBD.

For fixed-length segments, the minimum length and maximum length will be the same.

Number of Segments Extracted
Phase 1
The number of segment occurrences extracted during phase 1 of the Extract. Phase 1 is that part of the extract that precedes the resolution (or chasing) of logical relationships.
Phase 2
The number of segment occurrences extracted when resolving (or chasing) logical relationships.
Total
The total number of segments occurrences extracted.
Logically Related DB
The database in which this segment's logical parent resides.

The following is a description of the rows in this report.

Subtotal
These rows contain totals for each database:
Phase 1
The total number of segment occurrences extracted from the database during phase 1.
Phase 2
The total number of segment occurrences extracted from the database during phase 2.
Total
The total number of segment occurrences extracted from the database.
Grand total
This row contains the totals for the listed databases:
Phase 1
The total number of segment occurrences extracted from the listed databases during phase 1.
Phase 2
The total number of segment occurrences extracted from the listed databases during phase 2.
Total
The total number of segment occurrences extracted from the listed databases.