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What is Disadvantages Of DBMS ?
1. Cost of Software and Hardware and Migration - A important disadvantage of the DBMS system is cost.
2. Reduced Response and Throughput - The procedure overhead introduced through the DBMS to implement integrity, security, and sharing of the data causes a degradation of the response and throughput times.
3. Problem with Centralization - Centralization also means in which the data is accessible from a single source namely the database. This increases the potential of security breaches and disruption of the operation of the organization since of failures and downtimes.
Explain what is RDBMS ? RDBMS - RDBMS is a database management system (DBMS) which stores data within the form of relations. Relational databases are powerful since they need f
Why did SAP introduce the extended star schema? Explain why it is reported to be better than the traditional schema model?
Differentiate between B-tree and B + tree Ans: A B-tree (or Balanced Tree) is a search tree along with additional constraints that makes sure that the tree is all the time
Mixed fragmentation: Sometimes, horizontal fragmentation or vertical fragmentation of a database schema by itself is insufficient to sufficiently distribute the data for some appli
What are the reasons for having variable length records? What are the various ways to store variable length records? Variable-length records arise in a database in various wa
What are the benefits of prepared statements and place holders? Parameter binding operations automatically handle escaping of characters Encourage Statement reuse
What is a shadow copy scheme? It is simple, but efficient, scheme known as the shadow copy schemes. It is based on making copies of the database called shadow copies that singl
In object oriented design, which steps must designer take to adjust inheritance? To readjust inheritance following steps should be taken: i) Rearrange and adjust the classe
Explain Object oriented Model ? Object Oriented Model - This model is based on the object-oriented programming language paradigm. It involves the features of OOP such as inhe
Serialisable Schedules: If the processes of two transactions conflict with each other, how to verify that no concurrency related problems have happened? For this, serialisability t
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