MCA DCA8142 OPEN SOURCE DB SYSTEMS

Description

 

SESSION	NOV-DEC 2023
PROGRAM	MCA
SEMESTER	III
COURSE CODE & NAME	DCA8142&OPEN SOURCE DB SYSTEMS

 

SET-I

 

1. Why is concurrency control required in non-serial schedule? Also suggest any solution to maintain it.

Ans 1.

Concurrency control is essential in non-serial schedules of database systems to ensure data integrity and consistency. In a non-serial schedule, multiple transactions operate concurrently, increasing efficiency and resource utilization. However, this concurrency brings the risk of conflicting operations, which can lead to anomalies like lost updates, temporary inconsistency, and data

Its Half solved only

Buy Complete from our online store

 

https://smuassignment.in/online-store/

 

MUJ Fully solved assignment available for session SEPT  2023.

 

Lowest price guarantee with quality.

Charges INR 198 only per assignment. For more information you can get via mail or Whats app also

Mail id is aapkieducation@gmail.com

 

Our website www.smuassignment.in

After mail, we will reply you instant or maximum

1 hour.

Otherwise you can also contact on our

whatsapp no 8791490301.

 

2. Explain the need of Intellectual property right? Also discuss various licensing options available for copyrights

Ans 2.

Intellectual property rights (IPR) play a crucial role in the modern economy, particularly in the context of open-source database systems. This discussion will delve into the necessity of IPR and explore the various licensing options available for copyrights.

Importance of Intellectual Property Rights

Promoting Innovation

 

3. Discuss the meaning of integrity in RDBMS. Classify them. 10

Ans 3.

Integrity in Relational Database Management Systems (RDBMS) refers to the correctness, consistency, and adherence to defined rules and standards of the data stored in a database. It’s a critical aspect that ensures data is accurately and reliably stored, manipulated, and retrieved, maintaining the quality and trustworthiness of the database.

Types of Integrity in RDBMS

1. Entity Integrity: Entity integrity is concerned with ensuring that each row in a table is a uniquely identifiable entity. This is typically enforced through the use of primary keys. A primary key is a column, or a set of columns, that uniquely identifies each row in a table. The primary key must

 

 

SET-II

 

4. What is PHP? Explain different building blocks in PHP

Ans 4.

PHP, an acronym for “PHP: Hypertext Preprocessor,” is a widely-used open-source scripting language designed for web development. It is especially suited for creating dynamic and interactive web pages. PHP scripts are executed on the server, and the result is sent to the client as plain HTML. Here’s a detailed overview of PHP and its fundamental building blocks:

1. Syntax:

PHP’s syntax

 

Top of Form

 

5. Discuss the purpose of stored procedures in MySQL. Give the process of writing a procedure with an example template

Ans 5.

Stored procedures in MySQL serve several important purposes, enhancing the functionality, efficiency, and security of database systems. Below is a discussion on their purpose and a guide to writing a stored procedure in MySQL, including an example template.

Purpose of Stored Procedures

 

 

Top of Form

6. Explain how the database is stored in primary memory and secondary memory for usage

Ans 6.

When discussing how databases are stored in primary and secondary memory for usage, it’s essential to understand the distinct roles and characteristics of these two types of memory in database management systems (DBMS).

Primary Memory Storage in DBMS

Primary memory, also