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What are composite objects?
Objects that have other objects are known as complex objects or composite objects.
what is object-identity
3NF Normal Form A relation schema R is in 3NF if it is in 2NF and for each FD X A either of the following is true X is a Super-key of R. A is a prime attribute of R
About Attribute inheritance
What was the method in which records are physically stored in a specified order according to a key field in each record ? A method in which records are physically stored within
Process of Adjustment of inheritance During object design, inheritance is readjusted by rearranging classes and operations, and abstracting common behaviour.
why data in an RDMS need to be normalised
Design a database for an airline.The database must keep track of customers and their reservations,flights and their status, seat assignment on individual flights and, the schedule
I have to create a database about anything of my choice. It has to contain 4 queries, and 4 forms. It can be anything as simple as a shoe inventory with numbers - is this a service
Define the terms i) DDL ii) DML DDL: Data base schema is specified by a set of definitions expressed by a special language known as a data def
Create an entity relationship diagram, Database Management System
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