2B Generating DDL from a DDS 2E Model with No Changes ...

Example DDS

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Fields in SQL

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Run GENDDL

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GENDDL

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Resulting DDL

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Resulting DDL missing Long N

— The resulting DDL is missing lon
originally added in the manual

— This is one of the things that w
processing

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Names

ng field names which I had
DDL that I had created.
will be added in the Post-Compile

2E Compile Processing

— The 2E Compile Processor allow
to be called.

— Data Area YBRTPXA controls th
programs.

— 1 - 10 Pre-compile exit program
— 11 - 20 Pre-compile exit progra
— 21 - 30 Post-compile exit progr
— 31 - 40 Post-compile exit progr

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ws for User defined Exit Programs

he pre and post compile exit

m
am library
ram
ram library

2e Compile Processing

— For the DDL Generation Process
Compile Exit program.

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s we take advantage of the Post-

Exit Program

— CL Program TMMFUPC in library
the post compile processing by

— We can then take control of any
happen.

— We have many pre and post co
happen each time an object is g

— After many years of changing C
externalized it all into a databa

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y CRPDEVUTL is called as part of
y 2E
y processing that we want to

ompile steps that we need to
generated and compiled.
CL Programs to cater for it we
ase

Processing File

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Processes

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Post Processing

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Each Program has the same P

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Parameter Interface

Parameters

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Source Code to call each Proce

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ess

Source Code to call each Proce

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ess

DDLGEN Post Processing func

— The DDL Generation function th
passed object type is a file, and

— If it is a PF or LF, then the proce

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ction

hat gets called checks to see if the
d if so, finds the Object Attribute.
ess of generating the DDL is called.

DDLGEN Post Compile Process

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s

Building the DDL

— Earlier on I noted that there we
be converted to DDL Index’s.

— The DDL Build process checks a
is being processed should be co

— As long as there is no exception
continues.

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ere some exceptions that could not

a file to see if the current file that
onverted to DDL.
n record, the DDL Build process

Build DDL

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Adding the long field names

— The Generated DDL is then pars
COLUMN value.

— The field name is derived from
— Over the years there we have lo

characters for SQL field names
— We built an exception table for

that caused us problems
— We also removed invalid charac

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sed, and each field is given a FOR

the 2E Model Name for the field
ots of fields that contain invalid

r the internal DDS name for fields

cters during the parsing process

Some examples

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Resulting DDL

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DSPFFD on the file

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Fields in SQL

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