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What is the main advantage of the object model? What are its different components?
The object model focuses on the logical data structures. Each object model comprises of many classes, generalizations, associations and attributes.
Problem: You are given the following schema 1. Flights(flno, from, to, distance) 2. Aircraft(aid, flno, aname, cruisingRange) 3. Certified(eid, aid) 4. Employees(eid, ena
I want to fragment existing table using java code... help me..!!
i need help with creating database system for a library
What is the difference between internal tables and extract datasets? The lines of an internal table always have the similar structure. By using extract datasets, you can ha
Explain the dependency relationship of object oriented A dependency is a relationship which states that a change in specification of one thing can affect another thing, but n
What are the three classes of SQL expression? SQL expression consists of three clauses: Select From Where
During the deletion of a tuple two cases can happen: Deletion of tuple in relation having the foreign key: In this type of case simply delete the desired tuple. For example, in
Operator Precedence The basic operators used in SQL are * / - + Operators of the similar priority are evaluated From Left to right Parentheses are used to force priorit
differences between a classified catalog and a dictionary catalog
WHAT IS DATABASE TECHNOLOGIES
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