Introduction to Microsoft Access 2003 Zhi Liu School of Information Fall/2006 Introduction and Objectives Microsoft Access 2003 is a powerful, yet easy to learn, relational database application for Microsoft Windows. This tutorial is designed for users who are new or only have little experience using Access 2003. It introduces fundamental database concepts and operations and illustrates how they are performed in Microsoft Access 2003. This tutorial does not cover all of the features and functions
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Advantages are controlling redundancy, sharing data, and expanding security. Disadvantages are larger file size, increased complexity. 4. What is relational algebra? Identify four different commands and their purpose. A formal system for manipulating relations. Four different commands are Selection whose purpose is to pick rows according to a certain criteria. Projection’s purpose is to pick columns to output. Cross product’s purpose is to pair rows from two tables. Renaming which rename a table and or
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UOPX IT380 Database Concepts Database Design Paper 5/7/12 A database is a set of programs and applications used to store data, this allows the data to be used by different individuals in different areas and access information from it quickly. A database stores the information so that it can be used at a later time and so that additional information can be added, taken away, or used as needed.. Once in the database the data is compressed so that it takes up less space in the computer’s memory
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according to their level of relations. The data item contained in a given table represents a relation. I am convinced beyond reasonable doubt that through the use of relational database model, an organization can be able to effectively manage their wide range of information encountered on a daily basis. Relational database model offers a more efficient means of managing data. Some of the huge benefits are discussed as follows. A relational database is a collection of relations or tables. The rows of
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Executive summary Continued database growth, long-term data retention regula- tions and storage requirements are increasing operational costs. As a result, more CIOs are examining the potential ben- efits of implementing cost-effective strategies for managing data and information throughout its life cycle. Because most of the historical data stored in high-performance application databases is inactive, more companies are realizing the value of database archiving as an essential component
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Official TCC Course Syllabus Discipline Prefix: ITD Credit Hours: 4 Contact Hours: 4 Course Number: 260 Course Section: H01B Lecture Hours: 4 Studio Hours: Clinical Hours: Semester: Fall 2014 Lab Hours: Course Title: Database Modeling and Design Meeting Days/Time/Location: Wednesday, 8:00 pm – 9:40 pm, ATC – H207 Instructor Information Name: John Clary Office Location: ATC – H207 Office Hours: Immediately before and after class, other times and locations by appointment Contact Information:
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Givers and takers of business 3 types of ppl takers matchers givers * Takers: prefer to receive; self focused; put their needs ahead of others; * Matchers: like to receive but willing to give * Givers: prefers to give rather than receive; collaborate well with others * Helping * Mentoring * Sharing * Givers believe in we rather than I * Takers believe in competition, only one can give * Givers finish last and first * Lowest rate
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UNDERSTANDING THE RELATIONAL DATABASES Student’s Name Instructor’s Name Course Name 03/05/2016 RELATIONAL DATABASES Being a data administrator is to handle and organize the bulk of data masses for easy and convenient retrieval of the information at any point of time. I generally believe that compiling a bulk of data is very difficult task for anyone who has the responsibility to manage the information. Therefore, here we go through and understand the concept of relational databases and use
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that preserves the dependencies? CASE STUDY : 3 1) Anyone can read BANKACNT relation except for the ACCT NO attribute. 2) Any accountholder can read the tuple corresponding to his/her own account number from the ACNT DETAIL relation. 3) Bank employees can read tuples from ACNT DETAIL relation, but only those employees whose job is TELLER can update entries in the ACNT DETAIL relation pertaining to any ACCT NO (this field cannot be modified). 4) Bank employees can read
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It helps to minimize data redundancy i.e. there should not be any multivalued attributes. Moreover eliminating the repeating groups. 2. Helps to make database structure flexible. It means it could allow to add new data values and rows in a relation structure without reorganizing the database structure. 3. To make consistency of data throughout the database i.e. it should not suffer from anomalies as given below: a. Insert Anomaly – It occurs due to lack of data i.e. data items are scattered
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