what are the control blocks in IMS ?

Answers were Sorted based on User's Feedback



what are the control blocks in IMS ?..

Answer / s

PSB,DBD,ACB are the control blocks in IMS. It contains
description of the database structure in the DBD and the
applications view of the database and its processing intent
defined in the PSB. Online programs require an additional
step of ACBGEN to combine the DBD and PSB into ACB.

Is This Answer Correct ?    17 Yes 0 No

what are the control blocks in IMS ?..

Answer / subrahmanyam

There are 3 types of control blocks DBD,PSB,ACB.

DBD(Data Base Descriptor or Decription) specifies Physical
structure of an IMS database.
PSB ( Program Specification Block) Specifies Logical
Structure of an IMS database.
ACB : The combination of DBD and PSB is nothng but ACB
(Application Control Block).

Is This Answer Correct ?    10 Yes 2 No

what are the control blocks in IMS ?..

Answer / guest

PSBGEN, DBDGEN and ACBGEN are the control blocks in IMS

Is This Answer Correct ?    6 Yes 8 No

Post New Answer

More IMS Interview Questions

An application programmer comes to you and says your DB is no good, they got an II status code on an insert call from IMS, is this a DB problem?

2 Answers  


What are all the possible inputs to the DB recovery utility?

1 Answers  


What are the valid recovery points?

1 Answers  


Which is the DL/I function used in CICS-IMS program? IBM

3 Answers   IBM,


What is a Segment type?

2 Answers  






What are Twins?

3 Answers  


How man key fields and search fields can a segment have?

2 Answers  


Explain psbgen process?

0 Answers  


Static & Dynamic PSB

2 Answers   IBM,


Is it necessary that all the segments in a Dl/i database have key fields ?

2 Answers  


What are common status codes that you come across?

4 Answers   Satyam,


Which DB access method (OSAM or VSAM) is better and why?

4 Answers  


Categories