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There are three main sources of utilities and applications for a DBMS:
a. Vendor applications and utilities are given for working with or maintaining the database, and generally allow users to manipulate and create a database without the need to write custom applications.
b. User applications are usually custom-made application programs written for a exact purpose using a conventional programming language. This programming language is joined to the DBMS query language by the application program interface (API). This permits the user to utilise the power of the DBMS query language with the flexibility of a custom application.
c. Third party applications may be same to those given by the vendor, but with enhancements, or they may load a perceived need that the vendor hasn't formed an application for. They can also be same to user applications, being written for a definite purpose they think a large majority of users will need.
Consistency: This property makes sure that a complete transaction implementation takes a database from one consistent state to another consistent state. If the transaction fails e
. Ashutosh Dubey who is the director of Gyan Gurukul want a three-level schema architecture for the Gyan Gurukul Company that provide better security also design a data abstraction
Write short notes on tuple relational calculus. The tuple relational calculation is anon procedural query language. It defines the desired information without giving a particul
These are designed to reduce the effects of a database failure and make sure a database is restored to a consistent state if a failure does arise. Manual backup/restore utilities n
Question 1 What are the advantages of DBMS approach in managing data? Question 2 What are the services provided by a database system Question 3 List and briefly describe
Cardinality shows the number of instances of an entity associated with another entity participating in a relationship. Depend on the cardinality binary relationship can be further
Explain in details about the f unctions of DBA ?
What is foreign key? Foreign Key - Let there are two relations in tables R and S. Any candidate key of the relation R that is referred in the relation S is known as the forei
How the time stamps are implemented Use the value of the system clock as the time stamp. That is a transaction's time stamp is equivalent to the value of the clock when the tra
Advantages And Drawbacks Of Ddbms There are various reasons for building distributed database systems, with sharing of data, reliability and availability, and speedup of query
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