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At its most essential level the DBMS architecture can be divide into two parts: the back end and the front end.
The back end is responsible for managing the physical database and giving the essential support and mappings for the conceptual, internal and external levels. Other advantages of a DBMS, such as integrity, security and access control, are also the duty of the back end.
The front end is really just any application that runs on top of the DBMS. These may be applications given by the DBMS vendor, the user, or a third party. The user deals with the front end, and may not even be aware that the back end exists. This interaction is complete through Applications and Utilities which are the major interface to the DBMS for most users.
What is a B+-Tree index? A B+-Tree index takes the form of a balanced tree in which each path from the root of the root of the root of the tree to a leaf of the tree is of the
Attribute Preservation This is a easy and obvious necessity that includes preserving all the attributes that were there in the relation that is being decomposed.
Define instance and schema? Instance: Collection of data stored in the data base at a certain moment is Schema: The overall design of the data base is known as the data base
Explain four causes for failures in data warehouse projects
What is an object design? Object design is a very interactive method, which decides the relationship among objects, classifies operations on classes, determines overall system
What are the advantages of creating a table from existing table?
A file manipulation command that extracts some of the records from a file is called ? A file manipulation command that extracts some of the records from a file is called SELECT
What are the authentication modes in SQL Server? How can it be changed? Windows mode and Mixed Mode - SQL and Windows. To alter authentication mode in SQL Server click Start, P
What is horizontal fragmentation? Horizontal fragmentation divides the relation by assuming every tuple of r to one or more fragments
For the relations answer the following queries in SQL Street (name, location, city) House (number, street_name) Lives (name, house_number) (i) Obtain the names of persons who liv
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