What are the control block in IMS?

Information Management System (IMS) Interview Questions

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What are the control block in IMS?

There are two control block.
1. DBD (database descriptor )
2. PSB (program specification block)

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Other Interview Questions

• Which is the DL/I function used in CICS-IMS program?
• Is it neccessary that all the segments in a DI/i database have key fields?
• How can we distinguish between an online and batch program in IMS environment?
• What are common DLI functions?
• What is the physical nature of a database called?
• What are the parameters used in CBLTDLI call?
• What is secondary indexing
• How man key filed and search fields can a segment have?
• What is a key field in an IMS database?
• What is a Root?
• More...