Relational Database Design By Paul Litwin This paper was part of a presentation at a Microsoft TechEd conference in the mid-1990s. It was adapted from Microsoft Access 2 Developer’s Handbook‚ Sybex 1994‚ by Ken Getz‚ Paul Litwin and Greg Reddick. Reprinted with permission of the publisher. While the paper uses Microsoft Access (version 2) for the examples‚ the vast majority of the discussion applies to any database and holds up pretty well over 11 years after it was written. Overview Database design
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Accounting Information System Summary of Relational Database 1. Relational databases underlie most modern integrated AISs. a. They are the most popular type of database used for transaction processing. b. In this chapter‚ we’ll define the concept of a database. 2. Database systems were developed to address the problems associated with the proliferation of master files. a. For years‚ each time a new information need arose‚ companies created new files and programs. b. The result: a significant
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Table: Similar to spreadsheet used to store data. 2. Queries: Method of extracting specific data 3. Forms: Element to modify and insert records into you databases 4. Reports: It contains raw data and allows the organization of information in an easy way. 5. Databases: collection of associated information 6. Relational databases: access databases in which more than one can share information. 7. Record: each row in a table. 8. Data Value: an item such as data‚ or such as a single phone number.
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Introduction to Databases BDS: Connolly‚ Begg‚ Holowczak Pratt/Adamski Elmasri/Navathe (3rded.) Kroenke Book (7thed.) McFadden (5thed.) Mata-Toledo / Cushman Ch. 1 and 2 Ch. 1 Ch. 1 and 2 Chap. 1 and 2 Chap. 1 Schaum’s Outlines Ch. 1 Q: What is a Database ? Answer from BDS: A shared collection of logically related data and descriptions of that data‚ designed to meet the needs of na organization. Answer from Elmasri/Navathe: A Database (DB) is collection of related data - with the
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human being views the world in a unique fashion. “No two persons regard the world in exactly the same way…” was once said by J.W. von Goethe. Our decisions and interpretations to conflicts are all get based on our own particular experiences‚ perspectives‚ personality and cultural backgrounds. People have different motivations‚ beliefs‚ values and goals. Although we often share similar experience‚ we look at the situations differently. No two people think the same or see the world through the same
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I. Column Oriented Database A column-oriented DBMS is a database management system (DBMS) that stores data tables as sections of columns of data rather than as rows of data. In comparison‚ most relational DBMSs store data in rows. This column-oriented DBMS has advantages for data warehouses‚ customer relationship management (CRM) systems‚ and library card catalogs‚ and other ad hoc inquiry systems where aggregates are computed over large numbers of similar data items. It is possible to achieve
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Ashia Norman Instructor: Vicki Moulson Eng-112 September 29‚ 2010 Rhetorical Analysis of Mark Twain’s Two Ways of Seeing a River In the writing‚ “Two Ways of Seeing a River‚” by Mark Twain‚ there are many detailed experiences that Twain mentions as a river steamboat pilot. Twain gives the reader an example of what it is really like to explore the great rivers. Twain also gives the reader a view of the negative sides of the river. The text is targeted toward steamboat pilots or someone who would
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and its implementation. Together with increasing value of data and blooming customers – focused marketing concept ‚ firms have trended to systematic operations for collecting and storing data of the customer and using them beneficialy. With this way ‚data base marketing concept has appeared . Data base marketing is to discover and analyze process of unseen information from large amount of data of current or potential customers. With query to data base‚ the answers to questions such as “
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2010-09-01 Performance of Network Redundancy in SCTP - Introducing effect of different factors on Multi-homing Rashid Ali THESIS PROJECT Master program in Computer science MASTER THESIS Introducing effect of different factors on Multi-homing Abstract The main purpose of designing the Stream Control Protocol (SCTP) was to offer a robust transfer of traffic between the hosts over the networks. For this reason SCTP multi-homing feature was designed‚ in which an SCTP sender can access
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the three short stories: “Everyday Use”‚ “Two Ways to Belong in America” and “An Indian Father’s Plea”‚ it is easy to see how cultures influenced the people. The different cultures challenged the characters from each of the stories and affected how they viewed others and the world around them. In “Everyday Use”‚ it was Dee‚ who adapted to a new culture and way of living. She became educated and learned about her heritage and culture. This affected the way she viewed life. Instead of being like her
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