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Answer Posted / vinod
RDW stands for Record Descriptor Word.This is the first 4
bytes in a VSAM - Variable Record Length file that stores
the actual length of the record. This is hidden if you
browse a VSAM file. In a VB file, realistically the record
startsfrom COL 5 and NOT COL 1 as you see when you browse
the file.
| Is This Answer Correct ? | 12 Yes | 3 No |
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What are the different parameters that are used in vsam?
what are the codes returned by the ams (access method services) command during the execution in vsam?
in a cobol select statement for a ksds can you tell me what are the 3 possibilities for access?
What is speed parameters in define cluster command?
name a few common vsam status codes?
How to get the last record in vsam file in cluster? And how can u get the ksds file records into cobol program?
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.
if you wish to use the rewrite command how must the vsam file be opened?
what will happen if there is no secondary allocation made for datasets?
what are the additional information you should give in the dd statement while defining the next generation of a gdg?
Why is master catalog used in vsam?
Explain the difference between lds and esds?
What are the steps involved in access method services?
what is the meaning of dynamic processing in vsam?
what do you mean by a shareoptions parameter (shr) in define cluster command?
