ADABAS basic concepts. Like inverted list, address
converter ,data storage




Answers were Sorted based on User's Feedback



Answer / nagendra rampuria

with evry descriptor inverted list is associated which
tells about all the values of the descriptor with their
counts and the ISNs of the records.

Address convertor is associated with an adabas file whic
tells the block number of an ISN

Datastorage has all the blocks which contains the record.

Is This Answer Correct ?    12 Yes 1 No

Answer / niki

ADABASE the adaptable database, is a high-performance,
multithreaded, database management system for mainframe
platforms where database performance is a critical factor.
It is built on INVERTED LIST model.

Inverted List: it is used to resolve Adabas search commands
and read records in logical sequence, is built and
maintained for each field in an Adabas file that is
designated as a key field or “descriptor”.t is called
an “inverted” list because it is organized by descriptor
value rather than by ISN.

ADDRESS CONVERTOR:it contains the RABN's in ISN order. It
determines the physical location of a record. It is an
index that maps the logical identifier of a record (that
is, the ISN) to the relative Adabas block number (RABN) of
the Data Storage block where the record is stored.

DATA Storage:It stores the actual record in the order in
which it was entered

Is This Answer Correct ?    9 Yes 1 No

Post New Answer




More Natural Interview Questions

How do you pass GDA into a sub program with out PDA?

2 Answers   IBM,


What is data trace system 2.0 used for?

0 Answers  


syntax for all WRITE COMMAND in natural language

7 Answers  


difference between escape(top or bottom) and escape immediate(top or bottom?

3 Answers   CTS,


how we can find occurence of MU and PE fileds in a file?

2 Answers  


How can I create 1 DDM that fetches 3 ADABAS files simultaneously?

5 Answers  


difference between fetch , call and callnat

3 Answers   IBM,


How do you pass data from a Natural Program to an External Subroutine? Can it share the LDA of Program as in Internal Subroutine.

4 Answers  


Which is more efficient - the external subroutine or a copycode coded in to a NATURAL program? And Why?

2 Answers   Hexaware,


Does Natural online require CICS or other TP systems to function? How does Natural interact with CICS? Thanks.

1 Answers  


A field declared as P8 needs to be redefined as Alphanumeric. What would be its new size?

8 Answers  


Types Of Read , FIND

2 Answers  




Categories