reference architecture distributed database management system

... Authentication Package (Database Authentication) 41 A References 43 B Glossary 45 Trang 51 Introduction1.1 Identification of Protection Profile 1 Title: Database Management System Protection Profile ... “DBMS in Database Authentication Mode” or “DBMS in OS and Database Authentication Modes” Trang 72 Target of Evaluation (TOE) Description17 The product type is a “Database Management System” (DBMS). ... authorise access of DATABASE subjects to DATABASE objects based on the following additional rules: a) if the database subject has a database administrative privilege to override the database object

Ngày tải lên: 07/03/2014, 23:20

... [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

... 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

... integration between the parts of the database ã Unsupported applications ã Major database update costs STRATEGY DESIGN Operational System Operational System BUILD USER DOCUMENTATION TRANSITION PRODUCTION ANALYSIS ... Missouri Columbia With materials from: Peter Veenstra M.J. Harden Associates Relational Database Management Systems, Database Design, and GIS ... Name: Column Name Key Type Nulls/ Unique Sample Data Good Database Design Prevents ã Unnecessary or forgotten data ã Inflexibility for database re-sizing or modification ã Poor data element specification ã Poor database integration...

Ngày tải lên: 17/03/2014, 00:20

... page 5. Database management systems - 2. Using a database for document retrieval - page 1 Information Management Resource Kit Module on Management of Electronic Documents UNIT 5. DATABASE MANAGEMENT ... 5. Database management systems - 2. Using a database for document retrieval - page 11 Metadata are in the tables of a relational database and link to document text held either on the file system ... document retrieval 5. Database management systems - 2. Using a database for document retrieval - page 6 Using a database for delivery Now, you can start to choose the delivery system, that is how...

Ngày tải lên: 31/03/2014, 20:20

... administer than systems which do everything in the database. File System Document Document Documents Database Meta Data Management System Users 5. Database management systems - 3. Using a database ... the database, rather than the file system. Database Meta Data Document Document Documents Management System Users Using a database for management Databases are used in document management systems ... reference after you have completed the course. 5. Database management systems - 3. Using a database for document management - page 9 Using a database for management If you decide to use a database, ...

Ngày tải lên: 31/03/2014, 20:20