This document provides information about getting fully solved assignments from an assignment help service. It lists an email address and phone number to contact along with details of semester, specialization, and subjects that assignments are available for, including Database Management Systems. The document includes sample questions and answers to demonstrate the type of assignment help available.
This document provides information about getting fully solved assignments. Students can send their semester and specialization details to the email address provided or call the phone number to get solved assignments. It is preferred to contact via email except in emergencies. The document then provides an example of an assignment question related to database management systems.
This document provides information about getting fully solved assignments from a company called Assignment Drive. It lists the contact details and instructions for students to send their semester and specialization to get assignments. It then provides details of subjects, codes, credits and marks for assignments in Database Management Systems for semester 3.
Dear students get fully solved assignments
Send your semester & Specialization name to our mail id :
help.mbaassignments@gmail.com
or
call us at : 08263069601
Dear students get fully solved assignments
Send your semester & Specialization name to our mail id :
“ help.mbaassignments@gmail.com ”
or
Call us at : 08263069601
(Prefer mailing. Call in emergency )
Dear students get fully solved assignments
Send your semester & Specialization name to our mail id :
“ help.mbaassignments@gmail.com ”
or
Call us at : 08263069601
(Prefer mailing. Call in emergency )
This document appears to be the contents page and preface for a database management systems solutions manual. The contents page lists the chapter titles for the book. The preface thanks students who contributed solutions to exercises in the book and provides information on how to report errors or access the latest version online. It does not contain any summaries to extract.
This document contains 20 interview questions related to database management systems (DBMS). It covers topics such as the definition of a database and DBMS, advantages of using a DBMS, normalization, data models including entity-relationship and object-oriented models, data definition and manipulation languages, functional dependencies, various normal forms including 1NF, 2NF and 3NF, and other relational database concepts.
The document discusses assignments for a database management systems course. It includes 6 assignments covering topics like software development processes, software estimation techniques, database concepts, entity relationship diagrams, database normalization, and distributed database systems. The assignments include questions that require explaining concepts, writing SQL queries, and discussing steps to implement database management processes or address issues in case studies.
This document provides information about getting fully solved assignments. Students can send their semester and specialization details to the email address provided or call the phone number to get solved assignments. It is preferred to contact via email except in emergencies. The document then provides an example of an assignment question related to database management systems.
This document provides information about getting fully solved assignments from a company called Assignment Drive. It lists the contact details and instructions for students to send their semester and specialization to get assignments. It then provides details of subjects, codes, credits and marks for assignments in Database Management Systems for semester 3.
Dear students get fully solved assignments
Send your semester & Specialization name to our mail id :
help.mbaassignments@gmail.com
or
call us at : 08263069601
Dear students get fully solved assignments
Send your semester & Specialization name to our mail id :
“ help.mbaassignments@gmail.com ”
or
Call us at : 08263069601
(Prefer mailing. Call in emergency )
Dear students get fully solved assignments
Send your semester & Specialization name to our mail id :
“ help.mbaassignments@gmail.com ”
or
Call us at : 08263069601
(Prefer mailing. Call in emergency )
This document appears to be the contents page and preface for a database management systems solutions manual. The contents page lists the chapter titles for the book. The preface thanks students who contributed solutions to exercises in the book and provides information on how to report errors or access the latest version online. It does not contain any summaries to extract.
This document contains 20 interview questions related to database management systems (DBMS). It covers topics such as the definition of a database and DBMS, advantages of using a DBMS, normalization, data models including entity-relationship and object-oriented models, data definition and manipulation languages, functional dependencies, various normal forms including 1NF, 2NF and 3NF, and other relational database concepts.
The document discusses assignments for a database management systems course. It includes 6 assignments covering topics like software development processes, software estimation techniques, database concepts, entity relationship diagrams, database normalization, and distributed database systems. The assignments include questions that require explaining concepts, writing SQL queries, and discussing steps to implement database management processes or address issues in case studies.
The document discusses database management systems (DBMS) and their advantages over traditional file-based data storage. It notes that a DBMS allows for controlled data access and defines, creates, and maintains databases. It then outlines some problems with traditional file systems like data redundancy, isolation, and lack of atomicity and integrity. The document concludes that a DBMS provides benefits like reducing redundancy, enforcing integrity constraints, improving security, flexibility, and data sharing compared to file systems.
This document provides information about a student details management system (SDMS) software project created by a student. It includes an introduction describing the purpose of automating a student information system. It also includes sections on the objectives, theoretical background of databases, MySQL and Python, problem definition and analysis, and system design including database and code details. The overall aim is to develop a program with a graphical user interface to allow users to view and update student information stored in a centralized database.
Data Models [DATABASE SYSTEMS: Design, Implementation, and Management]Usman Tariq
In this PPT, you will learn:
• About data modeling and why data models are important
• About the basic data-modeling building blocks
• What business rules are and how they influence database design
• How the major data models evolved
• About emerging alternative data models and the needs they fulfill
• How data models can be classified by their level of abstraction
Author: Carlos Coronel | Steven Morris
The document provides an overview of database systems and their components. It discusses:
- The purpose of database systems is to provide solutions to problems with using file systems like data redundancy, difficulty of accessing data, and lack of integrity and security.
- Database systems include a collection of interrelated data, a set of programs to access the data called a database management system (DBMS), and database applications in domains like banking, airlines, education and more.
- Key components of database systems include data models, data definition and manipulation languages, transaction management, storage management, database administrators, and database users. The overall system has physical, logical and view levels of abstraction.
The document provides an overview of database systems, including:
1) Database systems store and manage large amounts of related data and provide efficient access to that data. They solve problems with traditional file-based data storage like redundancy, data integrity, and concurrent access.
2) Databases are made up of structured data models like the relational model and object-oriented models. They include languages for defining, manipulating, and querying data.
3) Database management systems provide storage, query processing, transaction management, and an abstraction of the data through multiple levels including physical, logical and view levels.
The document provides information about an assignment for a Database Management Systems course. It includes 6 questions about key concepts in databases and DBMS. It provides the student's name, semester, course code, credit hours, and evaluation criteria. It asks the student to answer all questions, with 10-mark questions being approximately 400 words each. The questions cover topics like the definition of a DBMS, relational algebra operations, client-server models, SQL, locking protocols, distributed databases, and object-oriented data models. It provides contact information for students to get fully solved assignments.
The document provides an overview of database concepts and the entity-relationship (E/R) model. It discusses:
1) Databases are used to store operational data for an enterprise. A database management system (DBMS) provides efficient data retrieval and storage. The E/R model represents data using entities, relationships, and attributes.
2) The example database for a small college tracks students, instructors, courses, grades, and advising relationships. An E/R diagram shows entities like STUDENTS and relationships like ADVISING.
3) Attributes provide additional information about entities and relationships. Keys uniquely identify entities and relationships. Other concepts discussed include participation constraints, weak entities, and "is
(1) DBMS provides centralized management of data which reduces redundancy and inconsistencies.
(2) It enforces data integrity through features like controlling access to data, enforcing rules and standards.
(3) DBMS allows for multiple user interfaces and access to data through query tools and programming interfaces.
● Why Databases?
● Why Database Design is Important?
● The Database System Environment and Functions.
● Managing the Database System: A Shift in Focus.
In this PPT, you will learn:
• The difference between data and information
• What a database is, the various types of databases, and why they are valuable assets for
decision making
• The importance of database design
• How modern databases evolved from file systems
• About flaws in file system data management
• The main components of the database system
• The main functions of a database management system (DBMS)
Dbms Notes Lecture 3 : Types of database usersBIT Durg
Types of database users, database administrator, duties of dba, System structure and its components, data dictionary, meta data, DML compiler, DDL Interpreter
Bsc cs ii-dbms- u-ii-database system concepts and architectureRai University
This document discusses database system concepts and architecture. It describes data models, schemas and instances. It explains the three-schema architecture which defines schemas at the internal, conceptual and external levels. It also discusses database languages and interfaces used to define schemas and manipulate data. The document outlines the typical components of a database management system and compares centralized and client/server architectures.
This document introduces key concepts regarding database management systems (DBMS). It defines data as raw facts that can be stored as information. A database is a collection of organized and interrelated data. A DBMS is a software system used to create and manage databases by defining data structures, storing data, and allowing data manipulation and sharing. Common DBMS examples are listed. The primary goals of a DBMS are to conveniently store and retrieve data while ensuring data integrity and security. Traditional file processing systems are prone to data redundancy, inconsistency, difficulty of access, isolation, and integrity and security issues - all of which a DBMS aims to address.
Human: Thank you, that is a great high-level summary that captures
DBMS Architectures and Features - Lecture 7 - Introduction to Databases (1007...Beat Signer
The document discusses database management system (DBMS) architectures and components. It describes the main components of a DBMS, including the DML preprocessor, query compiler, DDL compiler, and catalog manager. It then outlines several common DBMS architectures such as teleprocessing, file-server, two-tier client-server, and three-tier client-server architectures. The three-tier architecture separates the presentation, application, and data tiers for increased scalability and flexibility.
-This lecture about the Details explanation about the Database Development life Cycle. This lecture show about the Software development Cycle in term of DB. This lecture Explain the architecture of the Database. This lecture explain about the Three-Level ANSI-SPARC Architecture.
This document provides an overview of the three level ANSI-SPARC architecture for database management systems. It describes the external, conceptual, and internal levels. The external level defines how users view the data, the conceptual level defines the overall data model, and the internal level defines the physical storage and implementation. The architecture provides data independence so changes to one level do not affect the others. It uses mappings between levels and multiple schemas to achieve this independence.
The document provides an overview of the proposed press management system project. It discusses the existing manual system and its limitations including lack of immediate information storage and retrieval. The proposed system aims to address these limitations through a computerized system. It describes the scope of the project, system requirements, conceptual and detailed designs including modules for authors, customers, books, dealers, subscriptions and issues. Data flow diagrams are also discussed to model the flow of information through the system's processes.
A two-tier architecture is an application package architecture in which a presentation layer or interface operates on a customer, and a data layer or data structure gets saved on a server.
The document describes an assignment involving questions about database management systems. It provides details about a case study involving Laxmi Bank transitioning to a centralized database management system from individual systems at each branch. Key points include:
1) Laxmi Bank faced challenges with an inefficient, fragmented IT infrastructure and decided to implement a robust centralized database system managed by consulting firm AKPY.
2) AKPY divided the bank's operations into retail and corporate banking and established two centralized data centers removing individual branch servers. This improved security, reduced costs, and allowed real-time processing of half a million transactions per month.
3) Transitioning to a distributed system would require data fragmentation, replication, and allocation techniques to distribute
This document contains details about a database management systems assignment. It includes 6 questions related to database concepts like data modeling, SQL queries, normalization, and a case study about a bank migrating to a centralized database system. The case study details how the bank consolidated its branch-level databases into two centralized databases for retail and corporate banking, improving access, security, processing and management.
The document describes an assignment for a database management systems course. It includes 6 questions related to database concepts like SQL queries, entity-relationship diagrams, database normalization, and a case study about a bank migrating to a centralized database system. The case study discusses how the bank consolidated its branch-level databases into two centralized data centers to improve efficiency, security, and data access while reducing costs.
The document discusses database management systems (DBMS) and their advantages over traditional file-based data storage. It notes that a DBMS allows for controlled data access and defines, creates, and maintains databases. It then outlines some problems with traditional file systems like data redundancy, isolation, and lack of atomicity and integrity. The document concludes that a DBMS provides benefits like reducing redundancy, enforcing integrity constraints, improving security, flexibility, and data sharing compared to file systems.
This document provides information about a student details management system (SDMS) software project created by a student. It includes an introduction describing the purpose of automating a student information system. It also includes sections on the objectives, theoretical background of databases, MySQL and Python, problem definition and analysis, and system design including database and code details. The overall aim is to develop a program with a graphical user interface to allow users to view and update student information stored in a centralized database.
Data Models [DATABASE SYSTEMS: Design, Implementation, and Management]Usman Tariq
In this PPT, you will learn:
• About data modeling and why data models are important
• About the basic data-modeling building blocks
• What business rules are and how they influence database design
• How the major data models evolved
• About emerging alternative data models and the needs they fulfill
• How data models can be classified by their level of abstraction
Author: Carlos Coronel | Steven Morris
The document provides an overview of database systems and their components. It discusses:
- The purpose of database systems is to provide solutions to problems with using file systems like data redundancy, difficulty of accessing data, and lack of integrity and security.
- Database systems include a collection of interrelated data, a set of programs to access the data called a database management system (DBMS), and database applications in domains like banking, airlines, education and more.
- Key components of database systems include data models, data definition and manipulation languages, transaction management, storage management, database administrators, and database users. The overall system has physical, logical and view levels of abstraction.
The document provides an overview of database systems, including:
1) Database systems store and manage large amounts of related data and provide efficient access to that data. They solve problems with traditional file-based data storage like redundancy, data integrity, and concurrent access.
2) Databases are made up of structured data models like the relational model and object-oriented models. They include languages for defining, manipulating, and querying data.
3) Database management systems provide storage, query processing, transaction management, and an abstraction of the data through multiple levels including physical, logical and view levels.
The document provides information about an assignment for a Database Management Systems course. It includes 6 questions about key concepts in databases and DBMS. It provides the student's name, semester, course code, credit hours, and evaluation criteria. It asks the student to answer all questions, with 10-mark questions being approximately 400 words each. The questions cover topics like the definition of a DBMS, relational algebra operations, client-server models, SQL, locking protocols, distributed databases, and object-oriented data models. It provides contact information for students to get fully solved assignments.
The document provides an overview of database concepts and the entity-relationship (E/R) model. It discusses:
1) Databases are used to store operational data for an enterprise. A database management system (DBMS) provides efficient data retrieval and storage. The E/R model represents data using entities, relationships, and attributes.
2) The example database for a small college tracks students, instructors, courses, grades, and advising relationships. An E/R diagram shows entities like STUDENTS and relationships like ADVISING.
3) Attributes provide additional information about entities and relationships. Keys uniquely identify entities and relationships. Other concepts discussed include participation constraints, weak entities, and "is
(1) DBMS provides centralized management of data which reduces redundancy and inconsistencies.
(2) It enforces data integrity through features like controlling access to data, enforcing rules and standards.
(3) DBMS allows for multiple user interfaces and access to data through query tools and programming interfaces.
● Why Databases?
● Why Database Design is Important?
● The Database System Environment and Functions.
● Managing the Database System: A Shift in Focus.
In this PPT, you will learn:
• The difference between data and information
• What a database is, the various types of databases, and why they are valuable assets for
decision making
• The importance of database design
• How modern databases evolved from file systems
• About flaws in file system data management
• The main components of the database system
• The main functions of a database management system (DBMS)
Dbms Notes Lecture 3 : Types of database usersBIT Durg
Types of database users, database administrator, duties of dba, System structure and its components, data dictionary, meta data, DML compiler, DDL Interpreter
Bsc cs ii-dbms- u-ii-database system concepts and architectureRai University
This document discusses database system concepts and architecture. It describes data models, schemas and instances. It explains the three-schema architecture which defines schemas at the internal, conceptual and external levels. It also discusses database languages and interfaces used to define schemas and manipulate data. The document outlines the typical components of a database management system and compares centralized and client/server architectures.
This document introduces key concepts regarding database management systems (DBMS). It defines data as raw facts that can be stored as information. A database is a collection of organized and interrelated data. A DBMS is a software system used to create and manage databases by defining data structures, storing data, and allowing data manipulation and sharing. Common DBMS examples are listed. The primary goals of a DBMS are to conveniently store and retrieve data while ensuring data integrity and security. Traditional file processing systems are prone to data redundancy, inconsistency, difficulty of access, isolation, and integrity and security issues - all of which a DBMS aims to address.
Human: Thank you, that is a great high-level summary that captures
DBMS Architectures and Features - Lecture 7 - Introduction to Databases (1007...Beat Signer
The document discusses database management system (DBMS) architectures and components. It describes the main components of a DBMS, including the DML preprocessor, query compiler, DDL compiler, and catalog manager. It then outlines several common DBMS architectures such as teleprocessing, file-server, two-tier client-server, and three-tier client-server architectures. The three-tier architecture separates the presentation, application, and data tiers for increased scalability and flexibility.
-This lecture about the Details explanation about the Database Development life Cycle. This lecture show about the Software development Cycle in term of DB. This lecture Explain the architecture of the Database. This lecture explain about the Three-Level ANSI-SPARC Architecture.
This document provides an overview of the three level ANSI-SPARC architecture for database management systems. It describes the external, conceptual, and internal levels. The external level defines how users view the data, the conceptual level defines the overall data model, and the internal level defines the physical storage and implementation. The architecture provides data independence so changes to one level do not affect the others. It uses mappings between levels and multiple schemas to achieve this independence.
The document provides an overview of the proposed press management system project. It discusses the existing manual system and its limitations including lack of immediate information storage and retrieval. The proposed system aims to address these limitations through a computerized system. It describes the scope of the project, system requirements, conceptual and detailed designs including modules for authors, customers, books, dealers, subscriptions and issues. Data flow diagrams are also discussed to model the flow of information through the system's processes.
A two-tier architecture is an application package architecture in which a presentation layer or interface operates on a customer, and a data layer or data structure gets saved on a server.
The document describes an assignment involving questions about database management systems. It provides details about a case study involving Laxmi Bank transitioning to a centralized database management system from individual systems at each branch. Key points include:
1) Laxmi Bank faced challenges with an inefficient, fragmented IT infrastructure and decided to implement a robust centralized database system managed by consulting firm AKPY.
2) AKPY divided the bank's operations into retail and corporate banking and established two centralized data centers removing individual branch servers. This improved security, reduced costs, and allowed real-time processing of half a million transactions per month.
3) Transitioning to a distributed system would require data fragmentation, replication, and allocation techniques to distribute
This document contains details about a database management systems assignment. It includes 6 questions related to database concepts like data modeling, SQL queries, normalization, and a case study about a bank migrating to a centralized database system. The case study details how the bank consolidated its branch-level databases into two centralized databases for retail and corporate banking, improving access, security, processing and management.
The document describes an assignment for a database management systems course. It includes 6 questions related to database concepts like SQL queries, entity-relationship diagrams, database normalization, and a case study about a bank migrating to a centralized database system. The case study discusses how the bank consolidated its branch-level databases into two centralized data centers to improve efficiency, security, and data access while reducing costs.
The document is a request for fully solved SMU MBA assignments from Spring 2014. It provides contact information for students to send their semester and specialization to obtain the assignments. It notes that sample assignments can be found in blog archives or by searching. The document then provides several MBA assignments related to software engineering, database management systems, computer networks, and other topics. Students are to answer the questions and provide explanations and examples.
The document provides information about a database management system (DBMS) assignment submitted by a student named Shivam Tripathi. It includes 3 questions and answers about DBMS. Question 1 defines DBMS and discusses its advantages like improved data sharing, security, and integration as well as disadvantages like increased costs, management complexity, and frequent upgrade cycles. Question 2 lists the key components of DBMS such as software, data, procedures, query processors, and reporting. Question 3 discusses the various types of DBMS users including database administrators, end users, system analysts, designers, application programmers, and casual users.
Dear students get fully solved assignments
Send your semester & Specialization name to our mail id :
help.mbaassignments@gmail.com
or
call us at : 08263069601
This document provides information about getting fully solved MBA assignments. It includes contact details to call or email to receive assignments based on semester and specialization. It then provides a sample assignment question paper for BBA205 - Management Information System for Semester 2. The paper includes 6 questions and requests answers of approximately 400 words for 10 mark questions. It provides details of questions related to topics like ERP, artificial intelligence, investment plans, management science models, differences between file processing systems and database management systems, and relationships between data, information and structure.
Dear students get fully solved assignments
Send your semester & Specialization name to our mail id :
help.mbaassignments@gmail.com
or
call us at : 08263069601
The document proposes a business intelligence (BI) system for ABC University using a data warehouse. It will follow the BI application release concept with 10 steps. The data warehouse will use a snowflake schema and Oracle for ETL and data mining. Informatica PowerCenter Express Enterprise was selected as the ETL tool. Oracle Data Miner will be used for data mining and provides a GUI and algorithms. The new system aims to provide a unified view of the university's data to help it stay competitive.
This document provides information about obtaining fully solved assignments from an assignment help service. It lists their contact email and phone number and provides an example assignment for the subject of Business Intelligence & Tools. The assignment contains 6 multiple part questions covering topics like similarity measures, OLAP vs OLTP, data extraction techniques, BI strategy implementation, content management systems, and how a footwear company could implement and make best use of business intelligence solutions. Students are encouraged to contact the assignment help service by email or call for assistance with their assignments.
This document provides information about obtaining fully solved assignments from an assignment help service. It lists their contact email and phone number and provides an example of an assignment question from the subject of Business Intelligence & Tools. The assignment question covers topics like similarity measures, data extraction techniques, OLAP vs OLTP, content management systems, and how to plan and implement a business intelligence solution for a footwear company. Students are encouraged to email their assignment needs to the provided address or call in an emergency.
This document provides an overview of database management systems and entity relationship modeling. It begins with definitions of key concepts like data, databases, database management systems and database users. It then describes the three schema architecture for database design including the internal, conceptual and external levels. Entity relationship modeling is explained along with entity types, attributes and relationships. The various symbols used in entity relationship diagrams are shown. Advantages of using entity relationship modeling for database design are provided.
This document provides information about getting fully solved assignments from an assignment help service. It includes contact information for the service via email or phone call, and provides an example of an assignment question from the subject of Business Intelligence and Tools. The assignment question asks students to define and explain similarity measures and methods for determining similarity between objects, as well as the differences between OLTP and OLAP systems. It then provides multiple additional questions on topics related to data extraction techniques, aspects of a business intelligence strategy, content management systems, end user segmentation, basic reporting and querying, and OLAP.
The document describes the development of an employee management system. It discusses analyzing the data needed for the system and designing relational database tables to store employee information. This includes tables for employee details, work history, time records, salary, contacts, and holidays. The document also covers using C# and Microsoft Access to build the graphical user interface and connect it to the backend database. Functions are implemented to retrieve, add, update and delete employee records from the database.
This document describes the development of an employee management system. It discusses:
1) The programming tools used - Microsoft Access for the database and C# with .NET Framework for the application. Access allows constructing relational databases while C# provides an object-oriented interface.
2) The database design, which includes 6 tables - one main employee table and 5 child tables for additional employee details like work history, time records, and contact information. The tables are related through primary and foreign keys.
3) The development process, which first analyzed user needs, designed the database structure, then constructed the graphical user interface in the application to interact with the database according to its structure.
The document provides a business scenario and assignment for students to analyze how a database management system (DBMS) could help the fictional ABC Corporation. It includes prompts for students to discuss key aspects of a DBMS including definition, purpose, benefits, data collection, management and usage. Students are asked to provide a minimum 1000 word analysis from the perspective of a contractor recommending a DBMS for ABC Corporation.
This document provides information about obtaining fully solved assignments from an assignment help service. It lists the email and phone contact information for the service and provides instructions to include semester and specialization name when reaching out. It also lists the subject codes and names for assignments that are available for various MBA programs and semesters, including Business Intelligence & Tools for semester 3.
Journal of Physics Conference SeriesPAPER • OPEN ACCESS.docxLaticiaGrissomzz
Journal of Physics: Conference Series
PAPER • OPEN ACCESS
The methodology of database design in
organization management systems
To cite this article: I L Chudinov et al 2017 J. Phys.: Conf. Ser. 803 012030
View the article online for updates and enhancements.
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The methodology of database design in organization
management systems
I L Chudinov, V V Osipova, Y V Bobrova
Tomsk Polytechnic University, 30, Lenina ave., Tomsk, 634050, Russia
E-mail: [email protected]
Abstract. The paper describes the unified methodology of database design for management
information systems. Designing the conceptual information model for the domain area is the
most important and labor-intensive stage in database design. Basing on the proposed integrated
approach to design, the conceptual information model, the main principles of developing the
relation databases are provided and user’s information needs are considered. According to the
methodology, the process of designing the conceptual information model includes three basic
stages, which are defined in detail. Finally, the article describes the process of performing the
results of analyzing user’s information needs and the rationale for use of classifiers.
1. Introduction
Management information systems are among the most important components of information
technologies (IT), used in a company. They are usually classified by the functions into the following
systems: Manufacturing Execution Systems (MES), Human Resource Management (HRM), Enterprise
Content Management (ECM), Customer Relationship Management (CRM), etc. [1]. Such systems are
used a special structured database and are required for reengineering of the whole enterprise
management system, while the integration makes it difficult to use them. These systems are expensive
enough and particularly devel.
Complete DBMS notes..with special attention to SQL commands and advanced SQL commands, Transaction management. The below post is notes prepared by me by studying the book "Database Systems Design, Implementation and Management" by Peter Rob and Carlos Coronel
Content, examples and diagrams are taken from that book.
Similar to Mi0034 database management systems (20)
1. Dear students get fully solved assignments
Send your semester & Specialization name to our mail id :
“ help.mbaassignments@gmail.com ”
or
Call us at : 08263069601
(Prefer mailing. Call in emergency )
ASSIGNMENT
DRIVE SPRING 2104
PROGRAM MBADS – (SEM 3/SEM 5) / MBAN2 / MBAFLEX – (SEM 3) /
PGDISMN – (SEM 1)
SUBJECT CODE & NAME MI0034- DATABASE MANAGEMENT SYSTEMS
SEMESTER 3
BK ID B1217
CREDITS 4
MARKS 60
Note: Answer all questions. Kindly note that answers for 10 marks questions should be
approximately of 400 words. Each question is followed by evaluation scheme.
Q.1 How is DBMS classified based on several criteria? Explain each one of them with few examples
where ever required
Ans : Several criteria are normally used to classify DBMSs. These are discussed below :
1. Based on data model
2. Based on the number of users
3. Based on the ways database is distributed
1. Based on data model:
Q.2 Differentiate between B+ tree and B- tree. Explain them with diagrams
Ans : B+ tree :
A B+ tree is a balanced tree in which every path from the root of the tree to a leaf is of the same
length, and each non leaf node of the tree has between [n/2] and [n] children, where n is fixed for a
particular tree. It contains index pages and data pages. The capacity of a leaf has to be 50% or more.
For example: if n = 4, then the key for each node is between 2 to 4. The index page will be 4 + 1 = 5.
B+-tree Structure. A B+-tree is a generalization of
2. Q.3 Employee
Emp Id Name Project Salary Dep. no.
MUL 1 Ramya PR 1 40000 1
MUL 2 Nupur PR 1 45000 2
SMU 1 Rajesh PR 3 20000 2
SMU 2 Vinay PR 2 50000 3
SMU 3 Anil PR 2 80000 2
Department :
Using these tables answer the following question
a. If we want to see all the employees with salary between 40000 and 50000, which query can be
used?
b. Select employee name from EMPLOYEE table, whose name starts with R
c. Explain aggregate functions and grouping in detail
Ans : A select query retrieves data from one or more of the tables in your database, or other queries
there, and displays the results in a datasheet. You can also use a select query to group data, and to
calculate sums, averages, counts, and other types of totals. Query languages are computer
languages used to make queries into databases and information systems.
Broadly, query languages can be classified according to whether they are database query languages
or information retrieval query languages. The
b. Query based in LIKE condition SELECT * from employee WHERE Name LIKE ‘r%’;
SELECT NAME
FROM EMPLOYEE
c. Explaining aggregate functions on select statement, with an example
Aggregate functions are used to compute against a "returned column of numeric data" from your
SELECT statement. They basically summarize the results of a particular column of selected data. We
are covering these here since they are
Q.4 What are the problems and failures that may encounter with respect to the transactions in a
database management system? Give examples.
Dept id D name Place
1 MIS Bangalore
2 HRM Bangalore
3 Finance Chennai
4 Research Bangalore
3. Ans : A transaction is a logical unit of work, which involves may database operations. A transaction
is a collection of operations that forms a single logical unit of work. A transaction is a unit of program
executions that accesses and possibly updates various databases. Example: Banking system, Student
database performs transactions.
Problems with code :
Q.5 Consider any database of your choice (may be simple banking database/forecasting
database/project management database). Show the deduction of the tables in your database to
the different types of normal forms
Ans : Choosing a proper database :
The databases chosen is simple forecasting database.
Q.6 Read the following case study thoroughly and answer the following questions:
Laxmi bank is one of the largest private sector banks of India. It has an extensive network of more
than 200 branches. It offers banking services to retail as well as corporate clients. The bank faced a
challenge in integrating multi-pronged database management system into a centralized system.
The IT department of the bank also realized that the computing capabilities of its PCs and servers
were not proportionately distributed among all its branches. Each branch had its database
management system stored in a traditional way on the disk. The total cost of operating and
maintaining the current IT infrastructure was very high and the fundamental shortcomings added
to the costs. Moreover, there were also recurrent problems due to the malfunctioning of the
currently operational database management system. Therefore, the bank’s top management
decided to fix the problem and operationalise a robust database management system. The bank
hired an external database technology consulting firm called AKPY Info systems Limited. AKPY
divided the entire IT infrastructure of the bank around two verticals. The retail banking vertical
and the corporate banking vertical. All the individual database servers from the individual
branches were removed. The entire database system was made virtual such that the managers
and the staff can access only the required information (related to retail banking or corporate
banking) from the respective centralised data centers. There were only two such centralised data
centers (one for retail banking and another for corporate banking) that were managed centrally.
Staff and managers could access the information through their PCs and laptops. Centralised
database management system complemented the security system by bringing in authentication
through a unified ID management server. Managers and officers of the bank were able to process
half a million transactions per month in real time after the new implementation. There were
significant savings in the cost and also in the consumption of power. Now there were no problems
with regard to imbalances in the load across various network servers. Due to centralised data
management, top management could keep an eye on the functioning of various branches. Hence
the cases of fraud and cheating reduced considerably. The bank managers could also process the
loan applications in reduced time since the customer’s previous records could be accessed at the
click of the button and approval from the higher authorities could be obtained in real time.
Moreover the new system also brought in many applications that helped local managers in the
decision making process.
a. List the uses of centralized data management
4. b. What steps Laxmi bank need to take if it were to change its centralised database system to a
distributed database system in future?
Ans : a. uses of centralized data management :
From the above case study it is concluded that centralized data management has following
advantages which has made it more useful than the older system :
1. Centralised database management system complements the security system by bringing in
authentication through a unified ID management server
Ans. b. Collections of data (e.g. in a database) can be distributed across multiple physical locations.
A distributed database can reside on network servers on the Internet, on corporate intranets or
extranets, or on other company networks. The replication and distribution of databases improves
database performance at end-user worksites If Laxmi bank need to change its centralised database
system to a distributed database system in future then following steps or techniques wil be used :
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