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What's a LDS (Linear Data Set) and what's it used for?
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LDS is a VSAM dataset in name only. It has unstructured 4k
(4096 bytes) fixed size CI?s which do not contain control
fields and therefore from VSAM's standpoint they do not
contain any logical records. There is no free space, and no
access from Cobol. Can be accessed by DB2 and IMS fast path
datasets. LDS is essentially a table of data maintained on
disk. The 'table entries' must be created via a user program
and can only be logically accessed via a user program. When
passed, the entire LDS must be mapped into storage, and then
data is accessed via base and displacement type processing.
| Is This Answer Correct ? | 17 Yes | 10 No |
What is a VSAM split?
is delete operation supported in an esds? Is rewrite operation possible in esds?
What are the advantages of vsam over isam?
what are the different types of vsam files available? Explain them
Can you delete vsam files with the delete option of the disposition parameter of jcl?
can you specify some the distinctive features of a ksds, key sequenced dataset?
Define gdg?
can any one tell "in esds in what structure records will stored?"
Differentiate between ci split and ca split?
explain how many ways you can load data in a vsam cluster?
Differentiate between control interval (ci) and control area (ca)?
How do I declare the KSDS vsam so that I can store a reocrd with variable length?.
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