Interested to Buy Any Domain ? << Click Here >> for more details...
what is the drawback of vsam dataset??
a.execution slow.
b.free space.
c.independent storage device.
d.none of the above.
let me know the answer with reason.
- 4 Answers
- 7824 Views
- Target, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / shenbagasundari pilavadian
b.free space
Because, it increases the disk space requirements of system.
| Is This Answer Correct ? | 1 Yes | 1 No |
Answer / e s hudders
The question is too vague because there are 4 different types of VSAM data sets. Eliminating Linear Data Sets (LDS) that are used by DB2, the other types of VSAM data sets have different purposes and can be used to substitute previous access method - KSDS replaces ISAM, RRDS replaces DAM and ESDS replaces SAM. There are many advantages to using VSAM especially when compared to the older access methods that run below the line. As far as free space and splits, this applies to KSDS and you need to compare it to its equivalent how ISAM handled new record insertions. So, personally although things like free space takes up more disk space is not as important as having the capability to insert records in a file and to be able to process it sequentially as well as direct. The resulting splits are the price of splits can occur but again compared to ISAM, this is not as costly.
| Is This Answer Correct ? | 0 Yes | 0 No |
what is the purpose of the verify function of idcams?
What is the significance of the SHAREOPTIONS parameter?
is it required that primary key values have to be unique? Do alternate key values have to be unique?
How to delete a member using JCL.?
explain in brief why do vsam take more disk space than other utilities?
Why is it required to have a keyed directed retrieval?
How are different versions of GDG named ?
how can we convert esds to lds?
In a KSDS file, key is missing for one record. How to insert the key for that particular record from back up file. Is there any sorting needed for the back up file before the key insertion?
What is a VSAM split?
Describe SHAREOPTIONS parameter (SHR) in Define Cluster command.?
The first VSAM file V1 has 2 fields A and B . There is a DB2 file which has fields E and f. We need the fields A, B , E and F to another VSAM file called V2. Kindly mention the logic in procedure division in cobol..
COBOL 
