what is buffering and how does it apply to vsam files ?
if you wish to use the rewrite command how must the vsam file be opened?
What is the use of KSDS,LDS,ESDS,RRDS??what is VRRDS?? How are all these useful in realtime scenario??Plz helpme out...Its a recent question in IGATE..
is it required that primary key values have to be unique? Do alternate key values have to be unique?
explain in brief how are different versions of gdg named?
explain in brief what are the 3 types of vsam files?
Why is it required to have a keyed directed retrieval?
What are the steps involved in access method services?
Explain the difference between lds and esds?
Yes. Because the alternate key would first locate the primary key, which in turn locates the actual record. Needs twice the number of I/Os.
difference between vsam and database tables
What does the keyranges parameter in define cluster commends do?
Explain the function of the relative record data set?
Differentiate between control interval (ci) and control area (ca)?
What are the common vsam error conditions and codes?
