is it required that primary key values have to be unique? Do alternate key values have to be unique?
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What is the upgrade set?
Explain the purpose of the file status clause in the select statement?
What is the use of VSAM files? How to read this ?
Would you specify FREESPACE for an ESDS?
What are the distinctive features of a ksda, key sequenced dataset?
Explain the biggest disadvantage of using a vsam 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.
What are the advantages of vsam over isam?
in a cobol select statement, can you tell what is the organization for a ksds?
How to insert values for variables that are declared as COMP-3 variables in COBOL program in an already created VSAM file.
What is the purpose of the FILE STATUS clause in the SELECT statement?
Explain the catalog?