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Explain the disadvantages of file oriented approach?
In the oriented approach Applications are designed in isolation. Design of application is optimized for one application. Independently established applications lead to data redundancy. Wasted storage space because of redundancy.
a. There is loss of data integrity since integrity checking is not automated.b. Difficulty in accessing data.c. Information is available only in reports.d. Data Isolation.e. Inadequate securityf. Limited Flexibilityg. High Maintenance cost.h. Each data file of an application is a separate entity.
Design Of Distributed Databases: The distributed databases are mainly relational at local level. So a local database schema is the similar as that of a centralised database design
Column Constraints: NOT NULL, UNIQUE, CHECK, PRIMARY KEY, DEFAULT, REFERENCES, On delete Cascade : Using this key whenever a parent row is removed in a referenced
Explain the utilities which help the DBA to manage the database? Every DBA uses database utilities to maintain and control their databases. But there is a lot of confusion wit
What is data model? Explain object based and record based data models? Ans: A data model is an abstract model in which describes how data is represented and accessed. (i)
What is a homogeneous distributed database? In homogeneous distributed databases, all sites have the same database management system software, are aware of one another, and agr
State as Location within a Program In this traditional approach, location of control inside a program totally defines the program state. Any finite state machine may be implem
This project requires you to create a database design. Your design will be documented in a set of Entity-Relationship diagrams. Draw a set of Entity-Relationship diagrams to mode
Question: (a) What do you meant by content management and briefly describe four major components of a Content Management System? (b) Explain key benefits of a Content Manage
The Transactions- A transaction is definite as the unit of work in a database system. Database systems that deal with a huge number of transactions are also termed as transaction p
Which product produces the relation that has attributes of R1 and R2 ? Cartesian product produce the relation which has attributes of R1 and R2
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