Which DB access method (OSAM or VSAM) is better and why?
- 4 Answers
- 17490 Views
- I also Faced
- E-Mail Answers
Answer Posted / s
OSAM is better because with even block sizes you can have a
maximum size of 8 GB for a dataset. OSAM supports
sequential buffering, reads 10 consecutive blocks with one
1 I/O operation. This will reduce the elapsed time by 50%.
It also supports queued writes which also results CPU and
elapsed time savings.
| Is This Answer Correct ? | 9 Yes | 0 No |
Post New Answer View All Answers
Explain the maximum number of levels allowed in ims db?
What is the maximum number of segment types allowed for a single database?
What is acbgen process?
What is psb?
What is psbgen process?
What are the two ways in which dl/i interface can be invoked?
What is a segment in ims?
Define psb?
Can we use procopt on pcb and segment field (senseg)?
What is the maximum number of pcbs allowed in a psb?
What is the advantage of dynamic generation of acb?
What is the maximum of key fields and search fields allowed in a segment?
What are the advantages of a hierarchical database?
What is meant by bmp mode?
What are the processing modes available in ims db?
