Interested to Buy Any Domain ? << Click Here >> for more details...
what are the different types of vsam files available? Explain them
- 1 Answers
- 1832 Views
- IBM, I also Faced
- E-Mail Answers
1. Entry sequential data set(ESDS) works like sequential file which contains only cluster and data components.
We must mention NONINDEXED while defining ESDS cluster.
It supports only sequential access in batch program.
2. Key sequential data set(KSDS) has three components(CLUSTER, DATA and INDEX).
We must code INDEXED while defining the KSDS cluster.
Data component consists of sorted records which are based on key values.
Index component consists of key values and the pointer to the data records.
3. Relative Record Data Set(RRDS) records are identified using Relative Record Number (RRN). Records are stored in numbered.
4. The linear dataset(LDS) is a byte-stream dataset which is commonly used in DB2 system. This dataset is rarely used in application programs.
Mainframe important concepts and programs are explained in the IIWOWIIS channel in youtube. Please support us and share your comments.
| Is This Answer Correct ? | 0 Yes | 0 No |
How did you refresh a VSAM file and how frequently you do it ?
3 Answers CSC, IBM, Patni, Xansa,
How are records stored in an ESDS, entry sequenced dataset?
When CISZ is declared as 4096 at cluster level,is this true that data will have 4096 and index will have default?????
Using Alternate Indexes in Batch pgms: ?
What is the biggest disadvantage of using a vsam dataset?
what do you mean by gdg in vsam?
What is the meaning of dynamic processing?
why ci and ca splits are not possible in esds and rrds?
What is the upgrade set?
what is buffering and how does it apply to vsam files ?
explain how many ways you can load data in a vsam cluster?
What does a file status of 02 on a VSAM indicate?
COBOL 
