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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.
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This document discusses database languages used in database management systems (DBMS). It describes three types of database languages: data definition language (DDL) used to define and modify the database schema; data manipulation language (DML) used to insert, update, delete and retrieve data; and data control language (DCL) used to control access privileges. Examples are provided for common statements in each language type like CREATE, ALTER, DROP for DDL and INSERT, UPDATE, DELETE, SELECT for DML. Case sensitivity and data types are also briefly covered.
Database system concepts and architectureJafar Nesargi
This document discusses database system concepts and architecture. It covers data models, schemas, and instances. There are three categories of data models: high-level conceptual models, low-level physical models, and representational models. Schemas describe the database design while instances represent the actual data. The three schema architecture separates the internal, conceptual, and external schemas. Database languages include DDL for design, DML for manipulation, and others. DBMSs provide various interfaces and operate within a database system environment.
This document discusses data models and database management system architectures. It covers:
1) Categories of data models including conceptual, implementation, and physical models.
2) Classifications of DBMSs including the data model used (relational, network, etc.), number of users, number of sites, and cost.
3) Common multi-user DBMS architectures like teleprocessing, file-server, and client-server (two-tier and three-tier).
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Dear students get fully solved assignments
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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.
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 SMU MBA assignments
Send your semester & Specialization name to our mail id :
“ help.mbaassignments@gmail.com ”
or
Call us at : 08263069601
This document discusses database languages used in database management systems (DBMS). It describes three types of database languages: data definition language (DDL) used to define and modify the database schema; data manipulation language (DML) used to insert, update, delete and retrieve data; and data control language (DCL) used to control access privileges. Examples are provided for common statements in each language type like CREATE, ALTER, DROP for DDL and INSERT, UPDATE, DELETE, SELECT for DML. Case sensitivity and data types are also briefly covered.
Database system concepts and architectureJafar Nesargi
This document discusses database system concepts and architecture. It covers data models, schemas, and instances. There are three categories of data models: high-level conceptual models, low-level physical models, and representational models. Schemas describe the database design while instances represent the actual data. The three schema architecture separates the internal, conceptual, and external schemas. Database languages include DDL for design, DML for manipulation, and others. DBMSs provide various interfaces and operate within a database system environment.
This document discusses data models and database management system architectures. It covers:
1) Categories of data models including conceptual, implementation, and physical models.
2) Classifications of DBMSs including the data model used (relational, network, etc.), number of users, number of sites, and cost.
3) Common multi-user DBMS architectures like teleprocessing, file-server, and client-server (two-tier and three-tier).
This document provides an overview of database management systems (DBMS). It discusses key DBMS concepts like architecture, data models, schemas, data independence, and more. It also covers relational databases and the SQL language. The target audience is computer science graduates learning basic to advanced DBMS topics.
The document discusses the architecture and components of a database management system (DBMS). It describes that a DBMS is divided into modules including a query processor and storage manager. The query processor receives and optimizes SQL queries, while the storage manager is responsible for storing, retrieving, and updating data through components like a buffer manager, file manager, and transaction manager. The document also outlines some common data structures used in a DBMS like data files, data dictionaries, and indices.
The document discusses the history and development of database technology, including the transition from hierarchical and network database models to relational databases and more recent object-oriented and web-based applications. It also covers the basic concepts of databases, including what they are, how they are used, their advantages over file processing systems, and examples of database users and applications. Reasons for and against using a database management system are provided.
The document summarizes key concepts in database management systems (DBMS). It defines a database as a collection of logically related data for a specific purpose. A DBMS is software that allows users to define, create, and manipulate this database. Together, the database and DBMS are called a database system. The document then covers database concepts like data models, normalization, queries, and more. It provides examples to illustrate database management system concepts.
The document discusses the three-level architecture of database systems: the physical level, logical level, and view level. It describes each level in detail. The physical level refers to how data is stored internally. The logical level represents the conceptual design of the entire database. The view level consists of external schemas that individual users see. The document also covers the responsibilities of the database administrator (DBA) in managing the schemas and mappings between levels to map user views to the underlying conceptual and physical designs.
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 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.
Mca ii-dbms- u-ii-the relational database modelRai University
This document discusses the relational database model and key concepts. It describes the three schema architecture including the internal, conceptual, and external schemas. The three schema architecture helps achieve self-describing databases, insulation between programs and data, and multiple views of data. The document also outlines database languages, interfaces, environments and centralized versus client/server architectures.
The document discusses data abstraction and the three schema architecture in database design. It explains that data abstraction has three levels: physical, logical, and view. The physical level describes how data is stored, the logical level describes the data and relationships, and the view level allows applications to hide data types and information. It also describes instances, which are the current stored data, and schemas, which are the overall database design. Schemas are partitioned into physical, logical, and external schemas corresponding to the levels of abstraction. The three schema architecture provides data independence and allows separate management of the logical and physical designs.
The document discusses database management systems and data independence. It defines data independence as the ability to change the database schema at one level without requiring changes at other levels. There are two types of data independence: logical data independence, which allows changing the conceptual schema without changing the external schema; and physical data independence, which allows changing the internal schema without changing the conceptual schema. The document provides examples of each type of data independence and explains the importance of data independence for database maintenance and flexibility.
Md. Sumon Fakir presented on database management systems (DBMS). The presentation covered the introduction, purpose, architecture, levels, advantages and disadvantages of DBMS. It defined DBMS as consisting of a collection of persistent data and programs to access and manage that data. The purposes of DBMS were listed as reducing data redundancy, inconsistencies, and isolation while improving security, integrity and access. The architecture of DBMS was described as having external, conceptual and internal levels. The advantages included controlling redundancy, sharing data, consistency, integration and security. The disadvantages included costs of hardware, software, conversion, training and potential database damage.
This document discusses distributed databases and some of their key characteristics. It defines distributed databases as a single logical database spread across multiple physical locations connected by a communications link. Some key points covered include:
- Reasons for using distributed databases include business autonomy, data sharing, costs, and reliability.
- Distributed databases can be homogeneous, with the same DBMS at each node, or heterogeneous with different DBMSs.
- Major objectives of distributed databases are location transparency and local autonomy.
- Synchronous distributed databases ensure identical data copies but have high overhead, while asynchronous databases tolerate some inconsistency for faster response.
This document discusses distributed databases and distributed database management systems (DDBMS). It defines a distributed database as a logically interrelated collection of shared data physically distributed over a computer network. A DDBMS is software that manages the distributed database and makes the distribution transparent to users. The document outlines key concepts of distributed databases including data fragmentation, allocation, and replication across multiple database sites connected by a network. It also discusses reference architectures, components, design considerations, and types of transparency provided by DDBMS.
This document discusses database system concepts and architecture. It covers data models and their categories, including conceptual, physical and implementation models. It describes the history of data models such as network, hierarchical, relational, object-oriented and object-relational models. It also discusses schemas, instances, states, the three-schema architecture, data independence, DBMS languages, interfaces, utilities, centralized and client-server architectures, and classifications of DBMSs.
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 discusses the three levels of data abstraction in database management systems: the view level describes different views of data for users, the conceptual level defines how data is structured and related, and the physical level hides where data is actually stored on disk drives and managed by database administrators. Data abstraction involves hiding irrelevant details from users at different levels to provide customized views and achieve data independence between users and the physical storage of information.
This document discusses data models and the three schema architecture of database management systems (DBMS). It describes the three levels of schemas in a DBMS - physical schema, conceptual/logical schema, and external schemas. The three schema architecture supports program-data independence and multiple user views of data by providing different levels of abstraction and independence between the schemas.
This document provides an overview of database management systems (DBMS). It discusses DBMS architecture, data models including entity-relationship and relational models, data schemas, data independence, and the entity-relationship model. It also covers relational data modeling, Codd's 12 rules for relational databases, and mapping from entity-relationship diagrams to relational schemas. The intended audience is computer science graduates and prerequisites include basic computer concepts.
This document discusses distributed databases and client-server architectures. It begins by outlining distributed database concepts like fragmentation, replication and allocation of data across multiple sites. It then describes different types of distributed database systems including homogeneous, heterogeneous, federated and multidatabase systems. Query processing techniques like query decomposition and optimization strategies for distributed queries are also covered. Finally, the document discusses client-server architecture and its various components for managing distributed databases.
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
This document provides an overview of database management systems (DBMS). It discusses key DBMS concepts like architecture, data models, schemas, data independence, and more. It also covers relational databases and the SQL language. The target audience is computer science graduates learning basic to advanced DBMS topics.
The document discusses the architecture and components of a database management system (DBMS). It describes that a DBMS is divided into modules including a query processor and storage manager. The query processor receives and optimizes SQL queries, while the storage manager is responsible for storing, retrieving, and updating data through components like a buffer manager, file manager, and transaction manager. The document also outlines some common data structures used in a DBMS like data files, data dictionaries, and indices.
The document discusses the history and development of database technology, including the transition from hierarchical and network database models to relational databases and more recent object-oriented and web-based applications. It also covers the basic concepts of databases, including what they are, how they are used, their advantages over file processing systems, and examples of database users and applications. Reasons for and against using a database management system are provided.
The document summarizes key concepts in database management systems (DBMS). It defines a database as a collection of logically related data for a specific purpose. A DBMS is software that allows users to define, create, and manipulate this database. Together, the database and DBMS are called a database system. The document then covers database concepts like data models, normalization, queries, and more. It provides examples to illustrate database management system concepts.
The document discusses the three-level architecture of database systems: the physical level, logical level, and view level. It describes each level in detail. The physical level refers to how data is stored internally. The logical level represents the conceptual design of the entire database. The view level consists of external schemas that individual users see. The document also covers the responsibilities of the database administrator (DBA) in managing the schemas and mappings between levels to map user views to the underlying conceptual and physical designs.
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 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.
Mca ii-dbms- u-ii-the relational database modelRai University
This document discusses the relational database model and key concepts. It describes the three schema architecture including the internal, conceptual, and external schemas. The three schema architecture helps achieve self-describing databases, insulation between programs and data, and multiple views of data. The document also outlines database languages, interfaces, environments and centralized versus client/server architectures.
The document discusses data abstraction and the three schema architecture in database design. It explains that data abstraction has three levels: physical, logical, and view. The physical level describes how data is stored, the logical level describes the data and relationships, and the view level allows applications to hide data types and information. It also describes instances, which are the current stored data, and schemas, which are the overall database design. Schemas are partitioned into physical, logical, and external schemas corresponding to the levels of abstraction. The three schema architecture provides data independence and allows separate management of the logical and physical designs.
The document discusses database management systems and data independence. It defines data independence as the ability to change the database schema at one level without requiring changes at other levels. There are two types of data independence: logical data independence, which allows changing the conceptual schema without changing the external schema; and physical data independence, which allows changing the internal schema without changing the conceptual schema. The document provides examples of each type of data independence and explains the importance of data independence for database maintenance and flexibility.
Md. Sumon Fakir presented on database management systems (DBMS). The presentation covered the introduction, purpose, architecture, levels, advantages and disadvantages of DBMS. It defined DBMS as consisting of a collection of persistent data and programs to access and manage that data. The purposes of DBMS were listed as reducing data redundancy, inconsistencies, and isolation while improving security, integrity and access. The architecture of DBMS was described as having external, conceptual and internal levels. The advantages included controlling redundancy, sharing data, consistency, integration and security. The disadvantages included costs of hardware, software, conversion, training and potential database damage.
This document discusses distributed databases and some of their key characteristics. It defines distributed databases as a single logical database spread across multiple physical locations connected by a communications link. Some key points covered include:
- Reasons for using distributed databases include business autonomy, data sharing, costs, and reliability.
- Distributed databases can be homogeneous, with the same DBMS at each node, or heterogeneous with different DBMSs.
- Major objectives of distributed databases are location transparency and local autonomy.
- Synchronous distributed databases ensure identical data copies but have high overhead, while asynchronous databases tolerate some inconsistency for faster response.
This document discusses distributed databases and distributed database management systems (DDBMS). It defines a distributed database as a logically interrelated collection of shared data physically distributed over a computer network. A DDBMS is software that manages the distributed database and makes the distribution transparent to users. The document outlines key concepts of distributed databases including data fragmentation, allocation, and replication across multiple database sites connected by a network. It also discusses reference architectures, components, design considerations, and types of transparency provided by DDBMS.
This document discusses database system concepts and architecture. It covers data models and their categories, including conceptual, physical and implementation models. It describes the history of data models such as network, hierarchical, relational, object-oriented and object-relational models. It also discusses schemas, instances, states, the three-schema architecture, data independence, DBMS languages, interfaces, utilities, centralized and client-server architectures, and classifications of DBMSs.
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 discusses the three levels of data abstraction in database management systems: the view level describes different views of data for users, the conceptual level defines how data is structured and related, and the physical level hides where data is actually stored on disk drives and managed by database administrators. Data abstraction involves hiding irrelevant details from users at different levels to provide customized views and achieve data independence between users and the physical storage of information.
This document discusses data models and the three schema architecture of database management systems (DBMS). It describes the three levels of schemas in a DBMS - physical schema, conceptual/logical schema, and external schemas. The three schema architecture supports program-data independence and multiple user views of data by providing different levels of abstraction and independence between the schemas.
This document provides an overview of database management systems (DBMS). It discusses DBMS architecture, data models including entity-relationship and relational models, data schemas, data independence, and the entity-relationship model. It also covers relational data modeling, Codd's 12 rules for relational databases, and mapping from entity-relationship diagrams to relational schemas. The intended audience is computer science graduates and prerequisites include basic computer concepts.
This document discusses distributed databases and client-server architectures. It begins by outlining distributed database concepts like fragmentation, replication and allocation of data across multiple sites. It then describes different types of distributed database systems including homogeneous, heterogeneous, federated and multidatabase systems. Query processing techniques like query decomposition and optimization strategies for distributed queries are also covered. Finally, the document discusses client-server architecture and its various components for managing distributed databases.
Dear students get fully solved assignments
Send your semester & Specialization name to our mail id :
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Ms 95 - research methodology for management decisionssmumbahelp
This document provides instructions for students to submit their completed assignments for a Research Methodology course. It includes details on the course code, title, assignment code, coverage, and deadline. It then provides 5 questions as part of the assignment relating to topics like contingency tables, basic vs applied research, primary vs secondary data collection, systematic sampling, and applications of rating scales in management. Students are asked to answer each question providing explanations and justifications for their responses.
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Dear students get fully solved assignments
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Dear students get fully solved assignments
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Dear students get fully solved assignments
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Dear students get fully solved assignments
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This document provides information about an assignment for a retail management course. It includes 3 questions about factors influencing retail consumers, explaining the retail marketing mix, and elements of store design. Students are instructed to answer all questions, with answers to 10-mark questions being approximately 400 words. They are told to send their semester and specialization to receive fully solved assignments via email or phone call.
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This document provides information about an assignment for an MBA course on Business Intelligence Tools. It includes 5 questions about key topics in business intelligence, including defining data, information and knowledge; explaining the components of a data warehouse; listing the phases of the BI lifecycle; describing approaches to developing BI solutions; and elaborating on BI applications in finance. Students are instructed to answer all questions, with answers to 10-mark questions being approximately 400 words. They are provided contact information to obtain fully solved assignments.
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Mu0016 performance management and appraisalsmumbahelp
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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 from an assignment help service. It lists the email and phone contact information and specifies the subjects and semesters they provide assignments for, including Database Management Systems for semester 3. It includes sample questions and answers about database topics like data modeling, SQL queries, transactions, and normalization. The document aims to help students by providing already solved assignments they can submit.
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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.
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Dear students get fully solved assignments
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This document provides information about getting fully solved assignments for the SMU BBA Spring 2014 semester. It includes contact information to email or call for assistance, along with sample assignment questions on topics like databases, SQL, and object-relational mapping. Students are instructed to include their semester and specialization when contacting for help with assignments.
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.
This document provides an overview of database management systems (DBMS). It defines a DBMS as consisting of a collection of persistent data and a set of programs to access and manage that data. The document then briefly discusses the history of DBMS development from early hierarchical models to today's dominant relational model. It describes the purposes of a DBMS in ensuring data integrity, security, and independence. The document outlines the architecture of a DBMS including its external, conceptual, and internal levels. It also defines the components, advantages, and disadvantages of a DBMS and describes common data languages like SQL.
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This document provides an overview of database management systems (DBMS). It defines a DBMS as consisting of a collection of persistent data and a set of programs to access and manage that data. It briefly discusses the history of DBMS development from early hierarchical models to today's dominant relational model. It describes the purposes of a DBMS in ensuring data integrity, security, and independence from applications. It also outlines the conceptual architecture of a DBMS including its external, conceptual, and internal levels. Key components and features of DBMS are defined, along with advantages like data sharing and consistency, and disadvantages like implementation costs. Finally, it distinguishes between data definition and manipulation languages used to define and interact with database schemas and data.
This document provides an introduction to database management systems (DBMS). It defines a database as an organized collection of data and explains that a DBMS is software that allows for the storage, organization, and retrieval of data from a database. The document then discusses different database models including hierarchical, network, relational, and object-oriented models. It provides examples and discusses advantages and disadvantages of each model.
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The document provides an introduction to database management systems and their components. It discusses that a database is a collection of related data representing some aspect of the real world. A database management system (DBMS) allows users to define, construct, manipulate and share databases. The key functions of a DBMS include data definition, data storage, data manipulation such as querying and updating, and sharing data among multiple users. The document also provides examples of database systems and their typical components such as utilities, tools, and centralized and client/server architectures.
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A database management system (DBMS) consists of a collection of interrelated data and a set of programs to access, update, and manage that data. DBMS were developed in the 1960s to address issues with data redundancy, inconsistency, isolation between programs and data formats, security, and integrity. They use various data models like hierarchical and relational models to structure the relationships between data.
Similar to Mi0034 – database management system (20)
Strategies for Effective Upskilling is a presentation by Chinwendu Peace in a Your Skill Boost Masterclass organisation by the Excellence Foundation for South Sudan on 08th and 09th June 2024 from 1 PM to 3 PM on each day.
Main Java[All of the Base Concepts}.docxadhitya5119
This is part 1 of my Java Learning Journey. This Contains Custom methods, classes, constructors, packages, multithreading , try- catch block, finally block and more.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Thinking of getting a dog? Be aware that breeds like Pit Bulls, Rottweilers, and German Shepherds can be loyal and dangerous. Proper training and socialization are crucial to preventing aggressive behaviors. Ensure safety by understanding their needs and always supervising interactions. Stay safe, and enjoy your furry friends!
Physiology and chemistry of skin and pigmentation, hairs, scalp, lips and nail, Cleansing cream, Lotions, Face powders, Face packs, Lipsticks, Bath products, soaps and baby product,
Preparation and standardization of the following : Tonic, Bleaches, Dentifrices and Mouth washes & Tooth Pastes, Cosmetics for Nails.
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
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Mi0034 – database management system
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ASSIGNMENT
DRIVE WINTER 2016
PROGRAM MASTER OF BUSINESS ADMINISTRATION (MBA)
SEMESTER III
SUBJECT CODE & NAME MI0034 – DATABASE MANAGEMENT SYSTEM
BK ID B1966
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.
Question.1. Define Database and Database Management System
(DBMS). Briefly explain the importantproperties of database.
Answer:A database management system (DBMS) is system software for creating and managing
databases. The DBMS provides users and programmers with a systematic way to create, retrieve,
update and manage data.
A DBMS makes it possible for end users to create, read, update and delete data in a database. The
DBMS essentially serves as an interface between the
Question.2. With a neat diagram explain the concept of three-
schema architecture.
Answer:The three-schema approach, or three-schema concept, in software engineering is an
approach to buildinginformationsystemsand systems information management that originated in
the 1970s. It proposes three different views in
Question.3. a. Define SQL
2. Answer:SQL is a domain-specific language used in programming and designed for managing data
heldina relational database managementsystem (RDBMS), or for stream processing in a relational
data stream management system (RDSMS).
Originally based upon relational algebra and tuple
b. Explain the different types of SQL statements
Answer:SQL is a very powerful and diverse database language use to storing data into databases.
SQL is loosely typed language so you can learn easily.
In thisSQL tutorial,we use commandline examplestoknow about executing speed of SQL. It's take
very bit of time for executing and retrieving result.
Question.4. a. Define Distributed Database Management System
(DDBMS).
Answer:A distributed database is a database in which storage devices are not all attached to a
commonprocessor.It maybe storedinmultiple computers,locatedinthe same physical location;or
may be dispersedoveranetworkof interconnected computers.Unlikeparallel systems,inwhichthe
processors are tightly coupled and constitute a single database system, a distributed database
system consists of loosely coupled sites that share no physical components.
b. Elaborate advantages and disadvantages of distributed database
management system.
Answer:Ina distributeddatabase,dataisstoredindifferentsystemsacrossa network. For Example,
in mainframes, personal computers, laptops, cell phones, etc.
Advantages of distributed database:
Question.5. Define client–server model. Briefly explain the
advantages of client–server model.
Answer:The client–server model is a distributed application structure that partitions tasks or
workloads between the providers of a resource or service, called servers, and service requesters,
called clients. Often clients and servers communicate over a computer network on separate
hardware, but both client and server may reside in the same
3. Question.6. Briefly explain the basic concepts of object-oriented
data model.
Answer:Imagine we have to design database for college. What is the real world entities involved
withcollege?Theyare college,Students, Lecturer, Course, Subject, Marks etc. Once all the entities
are listed,we findoutthe relationship between them and try to map all of them. Also we list what
are the attributes related to each entity like student id, name, lecturer name, course that he is
teaching, different subjects, pass mark, grade levels etc. Here we are
Dear students get fully solved assignments
Send your semester & Specialization name to our mail id :
help.mbaassignments@gmail.com
or
call us at : 08263069601