I have a few basic questions in mainframe . I am not experienced in mainframes . Maybe these questions reflect the lack of experience
What are the vsam files that we normally use in our programs . Are they KSDS,ESDS or RRDS .
For random access of data from a file , do we normally use vsam files in our programs or can we use Direct access files . I really don't know what is the difference between a VSAM KSDS file and a Direct access Indexed file (if there is any difference).
I will be immensely grateful to somebody who can help me in this .
VSAM confusion
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This link will answer your questions:
http://www.csis.ul.ie/COBOL/Course/Intr ... Access.htm
Sequential files- ESDS
Relative files - RRDS
Indexed files - KSDS
http://www.csis.ul.ie/COBOL/Course/Intr ... Access.htm
Sequential files- ESDS
Relative files - RRDS
Indexed files - KSDS
Regards,
Lakshmi
Lakshmi
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