Lecture Database management systems Chapter 6 Functional dependencies
Information Management Resource Kit Module on Management of Electronic DocumentsUNIT 5. DATABASE MANAGEMENT SYSTEMS LESSON 6. TEXTUAL DATABASES AND CDS/ISIS BASICSNOTE Please note that this PDF version does not have the interactive features offered th doc
... Objectives At the end of this lesson, you will: • understand the functionalities offered by CDS/ISIS, a textual DBMS; • understand the technical work needed by developers to implement these functionalities; ... understanding of the concepts covered in this lesson Good luck! Exercise What is CDS/ISIS? A set of tools for relational database management A textual database A set of tools for textual database management ... adapt CDS/ISIS depending on the required features They can personalize the system in order to match your organization’s needs But not all the adaptations can be made, and not all involve the same...
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Database Management systems phần 6 pdf
... (a,2,3,4 ,6) } (d) {(a,2,3,4,5), (2,a,3,4,5), (a,2,3 ,6, 5)} (e) {(a,2,3,4,5), (2,a,3,7,5), (a,2,3,4 ,6) } (f) {(a,2,3,4,5), (2,a,3,4,5), (a,2,3 ,6, 5), (a,2,3 ,6, 6)} (g) {(a,2,3,4,5), (a,2,3 ,6, 5), (a,2,3 ,6, 6), ... dependency theory and its use in database design include [3, 38, 4 36, 443, 65 6] Good survey articles on the topic include [66 3, 355] FDs were introduced in [1 56] , along with the concept of 3NF, ... examples and developed further in Sections 16. 3 through 16. 6 In Section 16. 3 we present examples that highlight basic alternatives in index selection In Section 16. 4 we look closely at the important...
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Tài liệu Project Management Professional-Chapter 6 ppt
... 289 292 294 34.014 30 .61 2 10.204 7.483 5.782 4. 762 3.741 1.701 1.020 0 .68 0 Total 294 1 76 Preparing for the Project Management Professional Certification Exam Frequency Figure 6- 5 Pareto chart 350 ... responsibility of management. ’’ 168 Preparing for the Project Management Professional Certification Exam Figure 6- 1 Economics of quality Optimum Point 140 120 100 Cost Cost of defects 80 60 Cost of inspection ... the project All of the other areas of the management of the Quality Management 167 project should complement the quality plan Risk is of major importance in the quality plan Areas of the project...
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Relational Database Management Systems, Database Design, and GIS pptx
... used to manipulate relational databases The Relational Database Concept • Proposed by Dr Codd in 1970 • The basis for the relational database management system (RDBMS) • The relational model contains ... defined and established in an ad-hoc manner ~ Croswell, 1991 Relational Database Management System - a database system made up of files with data elements in two-dimensional array (rows and columns) ... metadata on the GIS database • Metadata is descriptive information about the data • What is the data source? How accurate is it? • Manipulate, update and expand the database • Administer the database...
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UNIT 5. DATABASE MANAGEMENT SYSTEMS LESSON 2. USING A DATABASE FOR DOCUMENT RETRIEVALNOTE pot
... know that an instance of a 'technical document' can have a title and subject Database management systems - Using a database for document retrieval - page 10 Metadata search We can implement an indexed ... Integration with applications and workflow systems Database management systems - Using a database for document retrieval - page 13 Information portals An information portal can provide collaborative ... database ) http://jakarta.apache.org/lucene Database management systems - Using a database for document retrieval - page Full Text Search Some features of indexed text search engines are language-dependent,...
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UNIT 5. DATABASE MANAGEMENT SYSTEMS LESSON 3. USING A DATABASE FOR DOCUMENT MANAGEMENTNOTE pptx
... everything in the database Database management systems - Using a database for document management - page Using a database for management There are advantages to using systems that manage both document ... same database System Document Meta Data Document Documents Database Using a database for management It is often easier to create a system which manages metadata in the database and points to document ... - page Using a database for management If you decide to use a database, you have to know that there are two main ways in which it can manage metadata: Users Management 1) managing metadata in...
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UNIT 5. DATABASE MANAGEMENT SYSTEMS LESSON 4. TEXTUAL, RELATIONAL AND XML DATABASESNOTE docx
... by the two main types of databases: textual and relational Database management systems - Textual, relational and xml databases – page Flat file databases The flat file database can be considered ... following types of database can meet your needs? A relational database A textual database Please click on the answer of your choice Database management systems - Textual, relational and xml databases ... example, pubId Database management systems - Textual, relational and xml databases – page Relational databases Now we can change our Bibliography table so that each record has a primary key and the...
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UNIT 5. DATABASE MANAGEMENT SYSTEMS LESSON 5. RELATIONAL DATABASES AND SQL BASICSNOTE docx
... with a relational database SQL is more than simply a query language; it is a database sub-language and is becoming the standard interface to relational and non -relational database management systems ... packages, SQL/ DS and DB2, on this language SQL was adopted as an industry standard in 1986 (SQL- 86) Since then there has been three more standards, SQL- 89, SQL2 (or SQL- 92) and SQL3 (or SQL- 99) ... GRANT and REVOKE facilities of SQL Database management systems - Relational databases and SQL basics – page 13 Using SQL- tools The following document describes the procedures to create a database, ...
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System Support for Software Fault Tolerance in Highly Available Database Management Systems
... System Support for Software Fault Tolerance in Highly Available Database Management Systems by Mark Paul Sullivan Abstract Today, software errors are the leading cause of outages in fault ... differences in the risk to data in main CHAPTER INTRODUCTION memory and on disk 1.3 Existing Approaches to Software Fault Tolerance Current strategies for reducing the impact of software errors on systems ... concurrent systems programs such as the operating system and database management system make error prevention alone insufficient for achieving high system reliability and availability Since fault prevention...
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Chapter 10 Functional Dependencies and Normalization for Relational Databases
... criteria for "good" base relations? Informal Design Guidelines for Relational Databases (2) We first discuss informal guidelines for good relational design Then we discuss formal concepts of functional ... the process of 2NF normalization Figure 10. 10 Normalizing into 2NF and 3NF Note: The above figure is now called Figure 10. 10 in Edition Figure 10. 11 Normalization into 2NF and 3NF Note: The above ... of functional dependencies and normal forms - 1NF (First Normal Form) - 2NF (Second Normal Form) - 3NF (Third Normal Form) - BCNF (Boyce-Codd Normal Form) Additional types of dependencies, ...
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Fate of Pharmaceuticals in the Environment and in Water Treatment Systems - Chapter 6 pptx
... Group, LLC O 144 Fate of Pharmaceuticals in the Environment and in Water Treatment Systems TABLE 6. 1 (Continued) 261 .25 6. 5e Veterinary therapeutic Quinolone 261 .23 6. 9e Veterinary therapeutic; Aquaculture ... 142 Fate of Pharmaceuticals in the Environment and in Water Treatment Systems One of the most challenging aspects of batch, column, and field-scale experiments is the accurate quantification of ... 140 Fate of Pharmaceuticals in the Environment and in Water Treatment Systems the United States use lagoons; 57% use below-ground pits; and the remaining 20% employ other storage techniques,...
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MANAGING THE RISKS OF PAYMENT SYSTEMS CHAPTER 6 pot
... entries if the ODFI and RDFI are parties to an agreement for the provision of services relating to the entries 181 Risks of Automated Clearing House Payments 60 61 62 63 64 65 66 67 68 69 70 71 ... neither the ODFI nor the Originator has actual knowledge of the revocation of the Receiver’s authorization or of the termination of the arrangement between the RDFI and the Receiver concerning the ... transfer, the flow of funds is the reverse of the flow in a credit transfer It is often said that funds are “pulled” from the account of the Receiver into the account of the Originator For 143 Risks of...
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