Re: Data Dictionary

Is it that no one uses Data Dictionary anymore,if so why? 
   
  Once I have the Dictionary created, how do I apply it to a file, by using the 
REF keyword?

Michael Ryan <michaelrtr@xxxxxxxxx> wrote:
  A Field Reference File? It's basically a file definition (regular old
DDS) that doesn't contain data. You just reference the fields. Check
the DDS manual.

As far as a data dictionary...I haven't seen one in 20 years. I
wouldn't have any idea how to use it.

On 1/18/07, Mike Berman wrote:

Michael, I am not sure how to use this.

Lets say I want to create a file.

MYFILE
MYFORMAT

Fields are

Company, Cust#, PO#.

I created a Data Dictionary for this library, created Myfile and Myformat.
Now do i add these 3 fields obviously there are more than that, do add each 
and every field that we are going to be getting from our EDI partner?



Michael Ryan wrote:
I wouldn't use that. Here's from the help:

The Create Data Dictionary (CRTDTADCT) command creates a data
dictionary. A data dictionary must be created before the user can
use the Interactive Data Definition Utility (IDDU) to describe and
create database files. The user can create a data dictionary with
IDDU or with the CRTDTADCT command. More information is in the IDDU
Use book, SC41-5704.

IDDU? Not in this century. Here's from Wikipedia:

A data dictionary is a set of metadata that contains definitions and
representations of data elements. Within the context of a DBMS, a data
dictionary is a read-only set of tables and views. The data dictionary
is database in its own dictionary. Amongst other things, a data
dictionary holds the following information:

* Precise definition of data elements
* Usernames, roles and privileges
* Schema objects
* Integrity constraints
* Stored procedures and triggers
* General database structure
* Space allocations

So it's more than a Field Reference File, though that would be a
start. It's basically documentation that you want, right?


On 1/18/07, Mike Berman wrote:

HI,
We have new file layouts to use in our EDI process and I have been told to 
create them, along with a Data Dictionary.

I have never created one before and only used one very very briefly many 
years ago.

I did a search in the archives but did not find much.

As I am stumbling along on the Create Data Dict. command, I would love to 
see any examples of how to set one up.

THe data is EDI PO that is coming to us in 6 separate files from a 3rd 
party VAN.

They are calling these flat files. The fields, are all alpha.

Do I enter all of the potential fields into the Data Dictionary? Or only 
the unique fields that will be referenced?

In what ways are the Data Dictionary different from a Field Ref. file?

Any and all help would be tremendously appreciated.
Thanks,
Mike


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