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Determine object representation
As a designer, we must choose properly that when to use primitive types in representing objects and when to combine groups of related objects, what is exact representation of object attributes.
Consider an information system designed for an online company which provides IT products and services These include desktops, laptops, networking products, IT books, parts, and
Write short notes on extension and intension? In any data model, it is significant to distinguish among the description of the database and the database itself the description
A domain is a set of permissible values that can be given to an attribute. So each attribute in a table has a definite domain. Values to these attributes cannot be assigned outside
how many types of data model in DBMS? explain data abstraction with its different level
Describe the Menu based interfaces for web clients or browsing? Menu-Based Interfaces for Web Clients or Browsing - These interfaces present the user along with lists of option
What is conceptual schema? The schemas at the view level are known as subschema that describe dissimilar views of the database.
Draw an EER diagram that captures the "is-a" hierarchy of students in another simple database. The database captures both the "basic" information (say, student ID and student name)
want a idea for final year project
Guidelines for creation of table: Table name should begin with an alphabet. In table name, single quotes and blank spaces are not allowed. Reserve words of that DBM
State The position of object at any moment is called state. An object can have many states depend upon time. After receiving some input instructions, the object can change its
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