AOS

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Hi Folks,

  1. Is there any “table” concept in adabas as it is there in db2? Because i read somewhere that option ‘R’ in adabas online system menu can be used to view table of database files. Here we dont have access to open AOS?

  2. How i can create FDT and view it?

  3. What is a ‘VIEW’ in adabas? how to create or define the ‘view’ and how i can view this ‘view’?

  4. What is the difference between ‘DDM’, ‘FDT’ and ‘VIEW’?

Thanks in Advance,
Rohan.

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a view has to do with Natural, see your next question…

A brief (but incomplete) explanation:

FDT = Definition of File layout on ADABAS-Level. Field names are two byte long (e.g. “AB”)
DDM = Links ADABAS-Fields to logical Natural field names (e.g. “AB” → “CUSTOMER_NUMBER”)
VIEW = includes a DDM (or a part of it) into a Natural-Module (e.g. CUST view of CUSTOMER_FILE)

For more details see the ADABAS/Natural documentation.

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Thanks a lot for quick reply Matthias…Can you please send me the link where i can find all these information?