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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.
Explain the Query Processing Data Query Processing permits a user to report or analyze structured and unstructured data pulled from multiple data sources.
What are the advantages of object oriented databases in comparison with others? Why it is still not widely used? Object oriented designs are coherent, efficient and less prone
Introduction In large projects, we can have many different companies working together. Generally, the project or contract is awarded to one company (Principal Contractor), which
Define the Wait for graph Ans: The wait-for-graph is a directed graph and consist of nodes and directed arcs; the nodes of the graph are active transactions. An arc of the grap
Conversion of entity sets: I) For every strong entity type E in the ER diagram, we make a relation R containing all the easy attributes of E. The relation R pri
Chapter 10a review questions
a) Suppose we updated the catalog tables in real time, that is, after every update, insert, or delete SQL statement were executed-rather than only running RUNSTATS once every few
DDL Compiler The DDL compiler changes the data definition statements (such as CREATE TABLE .... in SQL) into a set of tables having metadata tables. These tables have infor
Can we delete data element, which is being used by table fields. No we cant delete data element.
Illustrate the class diagram for class room scheduling system If in any college, the number of classrooms are limited which have to be allocated to various classes and instruct
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