distributed database management system architecture pdf

... [AQM+96] Building a database system that accommodates semi-structured data has required us to rethink nearly every as-pect of database management While the overall architec-ture of the system is relatively ... headache in traditional database systems Because of these limitations, many applications involving semistructured data[Abi97] are forgoing the use of a data-base management system, despite the fact ... features, described in [AQM+96], are beyond the scope of this paper 3 System Architecture The basic architecture of the Lore system is depicted in Fig-ure 2 This section gives a brief introduction

Ngày tải lên: 23/03/2014, 12:20

... the database development life cycle Relational Database Design 1A.2 INTRODUCTION TO DATABASE MANAGEMENT SYSTEM Introduction to Relational Database Management System Introduction to Database Management ... Design 1A.6 WHY USE A DATABASE MANAGEMENT SYSTEM? Introduction to Relational Database Management System Why use a Database Management System? ã ã âNIIT The conventional approach to database processing ... Relational Database Design 1A.14 FUNCTIONAL COMPONENTS OF A DATABASE MANAGEMENT SYSTEM Introduction to Relational Database Management System Functional Components of a Database Management System

Ngày tải lên: 01/08/2014, 09:22

... 3MỤC TIÊU  Trình bày cái nhìn bao quát về cơ sở dữ liệu (Database) cũng như về hệ quản trị cơ sở dữ liệu (DBMS), hệ Cơ sở dữ liệu (Database System).  Các yêu cầu khi xây dựng một DBMS.  Một số ... 453453453 07/31/1972 333445555 5 Chương 1 : Nhập môn Hệ Quản Trị CSDL Trang 11DBMS (Database Management System)  Một phần mềm hệ thống cho phép định nghĩa, xây dựng xử lý và bảo trì dữ liệu ... hoạt động Tên, địa chỉ, số điện thoại của khách hàng  Báo cáo doanh thu Trang 9Database (tt)  Cơ sở dữ liệu (Database)  Một tập hợp có cấu trúc của những dữ liệu có liên quan với nhau được

Ngày tải lên: 17/10/2014, 07:23

... in maintaining and utilizing a database Trang 8Database Management System Capabilities of database management system Trang 9Data dictionary  Data dictionary or “system catalog” ◦ A centralized ... bookstore  Library management  … Trang 6Database Simplified database view Trang 7Database Management System  DBMS ◦ A general purpose software package designed to store and manage database  DBMS ...  Overview of DBMS  An Example  Characteristics of the Database  Advantages of using the DBMS approach Trang 15Database Management System  Objectives of DBMS: ◦ Data availability: users can

Ngày tải lên: 15/05/2017, 11:13

... Trang 1Distributed database  Management Systems Lecture 03 Trang 2Resembling SetupsTrang 3Distributed Files: A collection of files  stored on different computers of a  ... Computer System CPU Memory Computer System Shared Secondary Memory Shared Everything Loose Coupling Trang 6CPU Memory Computer System CPU Memory Computer System CPU Memory Computer System Switch ... 4Multiprocessor System: multiple   processors that share some form of  Unit Processor Unit Processor Unit Memory I/O System Shared Everything Tight Coupling Trang 5CPU Memory Computer System CPU Memory

Ngày tải lên: 05/07/2022, 13:30

... Trang 1Distributed Database  Management System  Lecture 04 Trang 2Fragmentation  Transparency Trang 3 Transparency is desirable but there  ... 10The Problem AreasTrang 11 Database Design Query Processing  Concurrency Control Trang 12 OS Support Heterogeneity   Relationship among  them  Trang 13Directory Management Distributed DB Design ... Operating System : already  provides in form of Device Drivers Trang 4 Can also provide network Trns. However  not all provide complete.  Third layer is  DBMS  Uses features of  Operating System in particular for 

Ngày tải lên: 05/07/2022, 13:30

... Trang 1Distributed Database Management System Lecture 05 Trang 2 Virtual University of Pakistan 2Data Model • A set of tools/ constructs used to model a database • Record/Semantic ... University of Pakistan 4Relational Data Model • Two major Strengths • Three Components • Relational databases based on relational Data Model Trang 5 Virtual University of Pakistan 5• A relation R

Ngày tải lên: 05/07/2022, 13:31

... Trang 1Distributed Database Management Systems Lecture # 8 Trang 2In the previous lecture• Integrity Rules • Data Manipulation ... Coupled–Programming Language and database languages are merged • Loosely Coupled –PL is extended with special concepts Trang 17Computer NetworksTrang 18A computer network is a system for communication

Ngày tải lên: 05/07/2022, 13:32

... subnet Trang 20Distributed DBMS Architecture Trang 21 Architecture of a systems defines its structure Trang 22 Sheth, A P., Larson, J A., ‘ Federated Database Systems for Managing Distributed Heterogeneous, ... Trang 1Distributed Database Management Systems Lecture 09 Trang 2In the previous lectureAlgebra Ops… Trang 3In this LectureTrang ... Autonomous Databases’, ACM Computing Surveys, 22, No 3, p(183-236), Sep., 90 Trang 23• Three major (idealized) architectures of DDBMS discussed –Peer to peer –Client/Server –Multidatabase Trang

Ngày tải lên: 05/07/2022, 13:32

... Trang 1Distributed Database Management System Lecture 10 Trang 2 Virtual University of Pakistan 2• The functions in ANSI/SPARC Architecture • Square boxes represent ... Pakistan 3Dimensions for DDBS Architecture • Autonomy • Distribution • Heterogeneity Trang 4 Virtual University of Pakistan 4 Heterogeneity: Different component databases has a common thing ... federation Trang 8 Virtual University of Pakistan 8to peer and homogeneous system same organization, of course multiple systems placed at different locations, since belong to same org no heterogeneity

Ngày tải lên: 05/07/2022, 13:32

... Trang 12A Multidatabase Systemautonomous heterogeneous, and distributed databases Two Major architectures: • Global Schema Architecture • Federated Schema Architecture Major DDBS Architectures-III ... Trang 1Distributed Database Management System Lecture 10 Trang 2Major DDBS ArchitecturesTrang 3Client-Server Architecture• Basic idea is to distribute functionality • Gives two level architecture ... you can see in the figureManagement; • Query Processing • Transaction and Storage Management • application and user interface • a client module of DBMS • Data and lock management cached their

Ngày tải lên: 05/07/2022, 13:33

... Trang 1Distributed Database Management Systems Trang 2 L External Schema  G External Schema Global Schema Component Schema ... SchemaExport  External Schema  ExternalSchema Federated Database Architecture Export Schema Trang 5Global Data Dictionary Trang 6• A directory is a database that contains data about data (meta-data) ... 10DDB Design• Top-Down Design Process • Bottom-Up Design Process Trang 11System Requirements (Objectives) Conceptual Design Distributed Design View Design Local Conceptual Schemas User Input View Integration

Ngày tải lên: 05/07/2022, 13:33

... Trang 1Distributed Database Management Systems Lecture 13 Trang 2 Virtual University of Pakistan 2How Interests of the ... Virtual University of Pakistan 5CLIENT (cAC#, cName, cAdr, cBal) table is placed in different databases based on their location, like from Lahore, Pindi, Karachi, Peshawar, Quetta Trang 6 Virtual ... Virtual University of Pakistan 15Information Requirements Trang 16 Virtual University of Pakistan 16Database Information: We may need to consult the conceptual DB design RDM being Semantically not

Ngày tải lên: 05/07/2022, 13:33

... Trang 1Distributed Database Management Systems Lecture 14 Trang 2 Minterm predicates: given a set of simple predicates ... University of Pakistan 9• A PHF is defined by a selection operation on the owner relations of the database schema, given a relation R, its PHF are given by Ri = Fi (R), 1 ≤ i ≤ w – Where F j is

Ngày tải lên: 05/07/2022, 13:34

... Trang 1Distributed Database Management Systems Lecture 15 Trang 2 Virtual University of Pakistan 2PHF- Minimality of Pr ... Virtual University of Pakistan 22• Implications must be based on the database semantics not on a particular extension of the database Trang 23 Virtual University of Pakistan 23Trang 24 Virtual

Ngày tải lên: 05/07/2022, 13:34

... Trang 1Distributed Database Management Systems Lecture 20 Trang 2In the Previous Lecture–Computed CA –Partitioning Algorithm ... Beta =  ΠA/C#, Bal (CUST) Trang 15AllocationTrang 17• Optimality–Minimize the processing cost and maximize the system throughput at each site Trang 18 It is a complex problem to be solved mathematically, to

Ngày tải lên: 05/07/2022, 13:37

... Trang 1Distributed Database Management Systems Trang 2Lecture # 21Trang 3Fragmentation: One of the possible way we can ... Fragmentation is relatively more complex Why ? Trang 7In today’s Lecture Trang 8 Storing a separate copy of database at each of two or three or more sites Trang 9integrity routines (if replicated data is ... updated simultaneously. • Therefore, better when used for non-volatile data Trang 13Replication Architecture in SQL Server Trang 14 Replication uses a publish-subscribe model for distributing

Ngày tải lên: 05/07/2022, 13:37

... Trang 1Distributed Database Management Systems Trang 2Lecture # 22Trang 3• What different types of Replication• What are ... process, follow the sequence, it’s a must the experiment on a single machine, though it won’t be a distributed environment, but it will be very simple Trang 7• Install multiple instances of SQL Server

Ngày tải lên: 05/07/2022, 13:38

... Frequency 310 PCI Express System Architecture 16 I/O Bus Architecture Perspective 33 MHz PCI Bus Based System Figure 1-2 on page 17 is a 33 MHz PCI bus based system. The PCI system con- sists of ... 774 General 774 The Programming Interface Byte 774 Detailed Class Code Description 775 Subsystem Vendor ID and Subsystem ID Registers 776 General 776 The Problem Solved by This Register Pair 776 Must ... Routing Helps with Messages 118 Header Fields Define Packet Format and Routing 119 PCI Express System Architecture 20 the address. One target (the Ethernet device in this example) decodes the address...

Ngày tải lên: 21/02/2014, 05:20

... 2.1 Common Database Management System Protection Profile Criteria A-44 May 2000 Issue 2.1 Common Database Management System Protection Profile Criteria 14 May 2000 Issue 2.1 Common Database Management ... user identity to the database. The database uses the provided operating system identity to establish a database iden- May 2000 39 Issue 2.1 Common Database Management System Protection Profile Criteria ... 7 Issue 2.1 Common Database Management System Protection Profile Criteria 2 Target of Evaluation (TOE) Description 2.1 Product Type 17 The product type is a Database Management System (DBMS). 2.2...

Ngày tải lên: 07/03/2014, 23:20