Answer Posted / sagar kajale
aix is used to access records of vsam ksds in order other than ksds files primary key or we can say base key. the ds over which aix exists is called a base cluster.
aix are ksds and has their own data and index component.
advantages:
can be updated automatically.
reduces data redundancy.
can be defined for both ksds and esds.
can have duplicates.
Disadvantages:
complex update logic.
performance degradation.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
How do you calculate record size of an alternate cluster?
Define dynamic processing?
What is a ci split?
name the utility program closely associated with vsam?
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.
What does the keyranges parameter in define cluster command do?
is it required that primary key values have to be unique? Do alternate key values have to be unique?
What is the main function of linear dataset?
What is the purpose of control intervals in vsam?
What is control interval?
What are the different commands used in idcams for vsam?
what is meant by dirty read in vsam?
What are the different parameters that are used in vsam?
What is the purpose of idcams?
What is the purpose of relative record data set used in vsam?