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What are the two types of errors? The two types of errors are: a) Logical error b) System error
Advantages of Data Distribution The primary benefit of distributed database systems is the ability to access and share data in a reliable and efficient manner.
What are the four main characteristics of the database approach? The four major characteristics of the database approach are: 1. Self-describing nature of a database system. 2.
how to prepare a data dictionary for online examination system for certified courses?
explain normalisation
What is trigger? Triggers are statements that are executed automatically by the system as the side effect of a modification to the database.
Define data model? A data model is a collection of conceptual tools for explaining data, data relationships, data semantics and consistency constraints.
explain thee diffrent types of data models
Mixed fragmentation: Sometimes, horizontal fragmentation or vertical fragmentation of a database schema by itself is insufficient to sufficiently distribute the data for some appli
Creating views with Read only option : In the view definition this option is used to make sure that no DML operations can be done on the view.
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