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Explain the function of Object model Object model describes the classes of objects in system, including their attributes and operations which they support. The analysis object
Event Occurrence of a process is called event. In other words, the object can receive many input instructions. The changes which occur due to these instructions are known as e
Explain Recursive relationship type? Recursive relationship type: A recursive relationship is one in that the similar entity participates more than once in the relationship
What subschema expresses ? A subschema expresses the external view. (External schemas are called also called as subschemas)
PRINCIPLES OF DATABASE 1. State the following terms: a) Database b) Database Management System c) Entity d) Attribute e) Relationship 2. Discuss the Three Level Architecture
1. Develop a flowchart using the decision structure to solve the following problem. A Box Lunch Bonanza is a small catering company that offers 2 different types of box lunches
About Attribute inheritance
What are called index-sequential files? The files that are ordered sequentially with a primary index on the search key are known as index-sequential files
Discuss the problem of Spurious tuples and how we may prevent it. Ans: A spurious tuple is, mainly, a record in a database that gets created while two tables are joined bad
WHY SHOULD NULL IN A RELATION BE AVOID AS possible?
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