Lecture Database management systems Chapter 7 Normalization for relational databases
Database Management systems phần 7 doc
... presented in [ 474 ] Another paper that considers concurrency control issues in the context of recovery is [4 27] Algorithms for building indexes without stopping the DBMS are presented in [ 477 ] and [6] ... concurrency control is introduced in [395] Transaction management issues for real-time database systems are discussed in [1, 11, 311, 322, 326, 3 87] A locking approach for high-contention environments ... is unlikely to beat lock-based protocols in centralized systems Indeed, it has mainly been studied in the context of distributed database systems (Chapter 21) 19.5.3 Multiversion Concurrency Control...
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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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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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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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GIS Applications for Water, Wastewater, and Stormwater Systems - Chapter 7 docx
... computing with wired and wireless communications, GIS, GPS, and remote sensing technologies (Karimi and Hammad, 2004) GIS lies at the heart of most mobile information resource systems For example, it ... lightweight, reliable, and affordable field computing devices; (3) more accurate and affordable GPS receivers; and (4) wireless communications (ESRI, 2004) MOBILE GIS APPLICATIONS Mobile GIS is helping ... pen and touch-screen computers; handheld devices and PDAs; and smart phones (a combination of a PDA and a cell phone) Due to their small screen; limited memory, storage, processing speed, and...
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Ozone Reaction Kinetics for Water and Wastewater Systems - Chapter 7 pps
... 7. 1 RELATIVE IMPORTANCE OF THE DIRECT OZONE B REACTION AND THE OZONE DECOMPOSITION REACTION* In Section 5.2 and Section 5.3, the kinetic regimes of the ozone decomposition reaction and any ozone B ... values, in Ozone in Water and Wastewater, Proceedings of 11th Ozone World Congress, Vol 2, S-1 7- 1 19–125, San Francisco, CA, 1993 22 Legube, B et al., Effect of ozonation on the organic-halide formation ... types of waters used in Switzerland, Ozone Sci Eng., 1, 3 57 372 , 1 979 27 Fogler, H.S Elements of Chemical Reaction Engineering, 3rd ed., Prentice-Hall, Englewood Cliffs, NJ, 1999, 77 –81 28 Hoigné,...
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Process technology equipment and systems chapter 7 & 8
... designed to operate in temperatures up to 300°F (1 48. 88 C), whereas plastic blades are limited to air temperatures between 160°F and 180 °F (71 .11°C, 82 .22°C) Air-cooled heat exchangers can be found ... V-202B Ti 202A Feed Tank V-202A Figure 7. 24 Heat Exchanger System 184 Pump 80 ºF Heat Exchangers and Systems side of the first exchanger at 80 °F (26.66°C) and exits the shell at 115°F (46.11°C) ... shell and tube, reboiler, plate and frame, air cooled, and spiral The shell -and- tube heat exchanger is the most common in the process industry Shell -and- tube heat exchangers are designed to handle...
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Tài liệu Project Management Professional-Chapter 7 doc
... Summary Many times a project is not able to produce everything that is needed to complete the project When this occurs the project manager becomes the 194 Preparing for the Project Management Professional ... of the project if the supplier delivers the project early or if the project performance exceeds the agreed upon specifications In this situation the risk of meeting the conditions of the project ... adjust the selling price at the end of the project according to the average interest rate over the period In the 1 970 s 188 Preparing for the Project Management Professional Certification Exam many...
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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 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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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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Fate of Pharmaceuticals in the Environment and in Water Treatment Systems - Chapter 7 pot
... examining the mobility of enteric © 2008 by Taylor & Francis Group, LLC 170 Fate of Pharmaceuticals in the Environment and in Water Treatment Systems bacteria in soil indicated to 6% of the inoculated ... 168 Fate of Pharmaceuticals in the Environment and in Water Treatment Systems Recently, antibiotics, including the veterinary antibiotic tylosin, which is described in this study, were found in ... An understanding of the degradation and fate of veterinary antibiotics in soil is important because of widespread use of the compounds in livestock production in the United States, and the concurrent...
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