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Differance between internal and external schema?
Internal and external schema: Internal Schema• Describes the physical storage structure• Uses a physical data model External Schema• Includes a number user views• Uses a conceptual or an implementation data model
Transactions And Concurrency Management Introduction One of the main benefits of storing data in an integrated repository or a database is to permit sharing of it betwee
Define various ways in which SELECT statement can be used for record selection Technology? SELECT gives you control over a number of aspects for record retrieval: 1) Which
What is conceptual schema? The schemas at the view level are known as subschema that describe dissimilar views of the database.
What does conceptual design work? A conceptual design involves modelling independent of the DBMS.
Describe the functions and features of foreign key? Foreign Key : The primary key of one file or table that is implanted in another file or table to implement the relationships
what is inverted and multilist structure
Design a gennalization and specialization hierarchy for an automobile sales company
What is storage manager? A storage manager is a program module that gives the interface between the Low level data kept in a database and the application programs
Which two tools are used to administer users for Active Directory?
We define a view in SQL through using the create view command. To describe a view, we must provide the view a name and must state the query in which computers the view. The form of
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