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IDMS set of occurances
In IDMS which of following is true for any set of occurances?1. It may have zero owner instances.2. It must have one and only one owner instance.3. It must have atleast one member instance.4. None
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What is the difference between a schema and a subschema?
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.
IDMS Interview Questions
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