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What is a cluster?
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Answer / jynthe
A cluster can be thought of as a logical dataset consisting
of two separate physical datasets namely data component and
index component
Data component contains the actual data, and the index
component contains the index(ie) the key values which we
have set.
anybody can darely take this as an answer. i m very sure
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / guest
A cluster is the combination of the index, sequence set and
data portions of the dataset. The operating system gives
program access to the cluster, ie. to all parts of the
dataset simultaneously.
| Is This Answer Correct ? | 0 Yes | 0 No |
is there any lock for vsam file so that no one can update the vsam file ?
What are the advantages of vsam over isam?
Would you specify freespace ce for an esds?
What is the use of lds (linear data set)?
What is the main function of linear dataset?
Hi, I want to create alternate index on VSAM file.my file structure is ex: RoomID pic x(7) R000001 Floor pic a((6) First RoomNo pic x(2) FA1 Occupied(yes/no) pic a(3) Yes Occupied Batch pic x(10). Maths i want to create alternate index on floor,roomno fields.can i create alternate index on both the fields.and tell me how to create.
Is it slower if you access a record through ALT INDEX as compared to Primary INDEX? Why?
print ids(/)char??what is the full form of ids??
what is a base cluster in vsam?
In a KSDS file, key is missing for one record. How to insert the key for that particular record from back up file. Is there any sorting needed for the back up file before the key insertion?
In vsam at the cluster creation for KSDS FREESPACE parameter is required but for ESDS FREESPACE parameter is not required ?
Define free space?
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