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external and internal mapping with examples
external view of DBMS in healthcare department?
Explain concept of inheritance with support of suitable example. Inheritance Inheritance is one of milestone of object-oriented programming language as it allows a creati
What is data definition language? Explain it in detail? The SQL DDL allows specification of not only a set of relations, but also information after each relation, containing
Define the concept of aggregation. Give two examples where this concept is useful. Ans: Aggregation transforms a relationship among the objects into a higher-level object. A
Assume that you are responsible for selecting a new DBMS product for Sohar Hospital
What is conceptual schema? The schemas at the view level are known as subschema that describe dissimilar views of the database.
With the help of a suitable diagram gives module wise explanation of system architecture of DBMS.on..
What are the parts of SQL language? The SQL language has various parts: data - definitition language Data manipulation language View definition Transaction contr
Data independence seems that "the application is independent of the access strategy and storage structure of data". In other words, the ability to change the schema definition in o
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