Do primary key values have to be unique? Do alternate key
values have to be unique?
Answer / guest
Primary key values must be unique; alternate key values need
not be.
| Is This Answer Correct ? | 12 Yes | 2 No |
What is the purpose of having vsam data space?
What are the advantages of vsam over isam?
Explain the index set?
By looking into the Jcl can we identify the dataset is VSAM?
5 Answers Cognizant, Keane India Ltd,
What are the steps involved in access method services?
How to insert values for variables that are declared as COMP-3 variables in COBOL program in an already created VSAM file.
how do you define an altindx ? How do you use altindxs in batch, cics programs?
in a cobol select statement, can you tell what is the organization for a ksds?
What is the use Free space in CI ?
On which datasets You can have ALT INDEX?
1. delete is not possible in esds. why? 2. i have 10 records in a esds file and i want to delete only 1st record ..then what i have to do?.. it will not affect any sequence of the RBA. 3. why open extend is not possible in rrds vsam file?
What is the utility program closely associated with VSAM?