why do we use vsam file thn seqential files ?
Answers were Sorted based on User's Feedback
Answer / vijay
1)Record Insertion inbetween the existing recored is
poosible.
Where as in PS file we can add only at the end
2) we read record in any order
were as in PS it is possible to read from 1st , 2nd ,
3rd... like that
Is This Answer Correct ? | 7 Yes | 1 No |
Answer / rajesh
ps files are stored in tape but esds cannot be stored in tape
and ps file cannot becreated alternate index but esds can be created
Is This Answer Correct ? | 3 Yes | 0 No |
Answer / pramod reddy
ps files can created on tape.but not esds files.
alternate index can be created in esds.but not in ps.
records inserted in seq nd random.but in ps only seq.
Is This Answer Correct ? | 1 Yes | 0 No |
how do you define an altindx ? How do you use altindxs in batch, cics programs?
Syntax of AMS modal commands ?
Tell me how many alternate indexes you can have on a dataset?
what is meant by BUFND & BUFNI..?
What is a CA, control area?
How to rename one vsam file as well as it's index?
to use the rewrite command, how should the vsam file be opened?
What is the Difference between LDS & ESDS ?
How is the sorting of vsam files carried?
State the differences between vsam and non-vsam files?
Using alternate indexes in cics program?
What is the difference between CI( Control Interval)and CA (Control Area)?