what is vsam catalog ?
Answers were Sorted based on User's Feedback
Answer / vaibhav
vsam catlog is used to resides on direct access
method...its contain location of dasd..sape amount
allocatted by dataset...attribute..address..
Is This Answer Correct ? | 8 Yes | 2 No |
Answer / satish
catlog is an index(vsam data set) used to store the
information related to datasets.
2 types: master catlg, user catlg.
Is This Answer Correct ? | 1 Yes | 0 No |
Suppose 3 generations of a GDG exist. How would you reference the 1st generation in the JCL?
how to see the last records in vsam dataset??
Define a path?
What are the three levels of definition for the VSAM DEFINE?
On which dataset you can have alt index?
how can you copy to a vsam cluster?
If you wish to use the REWRITE command haw must the VSAM file be opened?
what is the use of the file status clause in the select statement in vsam?
If we are using empty VSAM file, we can see this empty file by using FILE AID tool. How can we open empty VSAM file if you are using in Program..?
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?
How Vsam was evolved? What was the equivalent file for ESDS,KSDS and RRDS prior to evolution? What were their disadvantages of those file which leads to evolution of ESDS,KSDS and RRDS files ?
what is vsam catalog ?