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Rebase is an advanced system used to create, analyze and store information about the customer application code base. It employs the AltCode COBOL parser, which produces a summary of the COBOL program in a format known as the RTL format. The RTL summary is used to produce dependency relationships between programs, files, DB tables and their columns, copybooks and other programs. For advanced custom queries it is possible to write Java code that interfaces directly with the RTL.

The 16 main steps below describe the general sequence of the creating and loading the Rebase database with the information:

(1) Create an empty database.
(2) Create a structure with the source files.
------ Backup of DB taken.
(3) Load the source file names.
(4) Load the copy book names.
------ Backup of DB taken.
(5) Add the table and column definitions.
(6) Convert the tables to RTL.
(7) Build COL/TBL relationships.
------ Backup of DB and blobs taken.
(8) Copy gen the programs.
(9) Run Index Build program.
------ Backup of DB taken.
(10) Create Report on missing CopyBooks.
(11) Parse the program source.
------ Backup of DB and blobs taken.
(12) Run Statistics Generate.
(13) Run Generate Call Procedure names.
(14) Run Index build program.
------ Backup of DB taken.
(15) Run DataLink program.
(16) Run Index build program.
------ Backup of DB and blobs taken.
A couple of the Rebase screen shots, click to enlarge:
Programs Table
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