⟩ What is the difference between a schema and a subschema in IDMS?
The schema is the physical arrangement of the data as it appears in the DBMS. The subschema is the logical view of the data as it appears to the application program.
The schema is the physical arrangement of the data as it appears in the DBMS. The subschema is the logical view of the data as it appears to the application program.
What is IDCAMS?
What are the different types of VSAM files available?
Would you specify FREESPACE for an ESDS?
What is FREESPACE?
How do you decide on optimum values for CI, FREESPACE etc?
What is Control Interval, Control Area?
Under IDCAMS , multiple functions can be executed, each of which returns a cond code. What will be the condition code returned to the operating system?
How are records stored in an ESDS, entry sequenced dataset?
Syntax of AMS modal commands?
How do you initialize a VSAM file before any operation? a VSAM with alternate index?