why do we use vsam file thn seqential files ?
Answer Posted / 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 |
Post New Answer View All Answers
What is the biggest disadvantage of using a vsam dataset?
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 is buffering and how does it apply to vsam files ?
explain in brief why do vsam take more disk space than other utilities?
what are the codes returned by the ams (access method services) command during the execution in vsam?
What is the main purpose of having user catalog in vsam?
What is the purpose of having vsam data space?
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..
explain in brief how you can create a vsam file?
what do you mean by recovery and speed parameters in define cluster command?
there are seven idcams commands in vsam. Can you name and explain each of them?
What is the main function of key sequenced data set in vsam?
Tell about the ams used in vsam?
how can you copy to a vsam cluster?
explain the information contained in ci