Running Head: Database Development Case Study: Database Development Maintenance plans and activities that could be performed in order to improve data quality In order to improve the quality of datasets various activities to be performed like error detection and correlation‚ process design and process control and improvement In error detection method‚ errors are detected by comparing data to a correct baseline and by checking for missing values. By examining time stamp incorrected
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Structured Query Language (SQL) Introduction Commercial database systems use more user friendly language to specify the queries. SQL is the most influential commercially marketed product language. Other commercially used languages are QBE‚ Quel‚ and Datalog. Basic Structure The basic structure of an SQL consists of three clauses: select‚ from and where. select: it corresponds to the projection operation of relational algebra. Used to list the attributes desired in the result. from: corresponds
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CHAPTER 3 DATABASES AND DATA WAREHOUSES Building Business Intelligence CONTACT INFORMATION: Stephen Haag is the primary author of this chapter. If you have any questions or comments‚ please direct them to him at shaag@du.edu. THIS CHAPTER/MODULE IN SHORT FORM… This chapter introduces your students to the vitally important role of information in an organization and the various technology tools (databases‚ DBMSs‚ data warehouses‚ and data-mining tools) that facilitate the management
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DATABASE SPECIFICATIONS 1. TABLE NAME : TBLGENDER FIELD NAME DATA TYPE SIZE CONSTRAINT REFERENCES GID IntN/A PK‚ IDENTITY NONE GDESC Varchar6 NOT NULL NONE 2. TABLE NAME: TBLGRDLVL FIELD NAME DATA TYPE SIZE CONSTRAINT REFERENCES GRDID IntN/A PRIMARY KEY‚IDENTITY NONE GRDLVLDESC VarChar15 NOT NULL NONE GRDSECTION Varchar15 NOT NULL NONE 3. TABLE NAME: TBLRANK FIELD NAME DATA TYPE SIZE CONSTRAINT REFERENCES RANKID IntN/A PRIMARY KEY‚IDENTITY NONE RANKDESC Varchar20 NOT NULL NONE 4.
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CM/UG 50.00% 09/11/2010 Coursework is receipted on the understanding that it is the student’s own work and that it has not‚ in whole or part‚ been presented elsewhere for assessment. Where material has been used from other sources it has been properly acknowledged in accordance with the University’s Regulations regarding Cheating and Plagiarism. 000592677 Tutor’s comments Grade For Office Use Only__________ Awarded___________ Moderation required: yes/no Tutor______________________ Final
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Database management systems A database management system (DBMS) consists of software that operates databases‚ providing storage‚ access‚ security‚ backup and other facilities. Database management systems can be categorized according to the database model that they support‚ such as relational or XML‚ the type(s) of computer they support‚ such as a server cluster or a mobile phone‚ the query language(s) that access the database‚ such as SQL or XQuery‚ performance trade-offs‚ such as maximum scale
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Oracle Table Triggers Version 11.1 General Data Dictionary Views Related To DDL Triggers trigger$ dba_triggers all_triggers user_triggers System Privileges Related To Table Triggers create trigger create any trigger administer database trigger alter any trigger drop any trigger Table Trigger Firing Options -- before constraints are applied BEFORE INSERT BEFORE UPDATE BEFORE DELETE -- after constraints are applied AFTER INSERT AFTER UPDATE AFTER DELETE Transaction
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Computer Architectures A discussion of some of the nuances Of Database Security James A. Wallace June 09‚ 2006 ABSTRACT: When it comes to the topic of database security head just do not turn the way benchmarking world records and reports of ever-shorter downtimes do. However‚ security breaches do turn heads as well as undermine customer confidence‚ as the well-publicized thefts of credit card numbers from a few e-businesses showed in 2000. Databases introduce a number of unique security
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2. Why was the consolidated watch list created? What are the benefits of the list? ANSWER: In the aftermath of the 9-11 attacks‚ both critics and defenders of the information systems employed by the US intelligence community became concerned on how to prevent future terrorist incidents. Then a database of suspected terrorist known as the consolidated watch list was born. It is created in order to maintain separate list about terrorist and share relevant information concerning the individuals on
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® Fuzzy Logic Toolbox Computation Visualization Programming User’s Guide Version 1 How to Contact The MathWorks: PHONE ¤ FAX MAIL 508-647-7000 508-647-7001 Phone Fax Mail u INTERNET The MathWorks‚ Inc. 24 Prime Park Way Natick‚ MA 01760-1500 http://www.mathworks.com ftp.mathworks.com comp.soft-sys.matlab Web Anonymous FTP server Newsgroup Technical support Product enhancement suggestions Bug reports Documentation error reports Subscribing user registration Order
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