Is it necessary that the key field in a Dl/I database be unique?

Is it necessary that the key field in a Dl/I database be
unique?

Question Posted / guest

Is it necessary that the key field in a Dl/I database be unique?..

Answer / rama krishna

No. It is not necessary as we have options like Unique and
Multiple while declaring the key fields.

Is This Answer Correct ?

7 Yes

2 No

More IMS Interview Questions

What is psb?

What are the command codes and their purposes?

What is multi positioning ?

What information does a psb contain?

I found some good questions/answers regarding IMS here:

What will happens when a BMP programs takes a checkpoints?

What are the path calls in imsdb?

In the RECON, what always sets the IC NEEDED flag on for a registered DB?

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

What is the difference between HDAM & HIDAM DB types and when would you use each?

Explain psbgen process?

Can a variable length segment be declared in IMS? If yes, what is the structure; If no, why?

For more IMS Interview Questions Click Here