characters in a character set but of definable variable length.Stores binary string values in hexadecimal format. BLOB is defined to be a variable length. (Oracle also has CLOB and NCLOB‚ as well as BFILE for storing unstructured data outside the database.) | Number | NUMERICINTERGER(INT) | Stores exact numbers with a defined precision and scale.Stores exact numbers with a predefined precision and scale of zero | Temporal | TIMESTAMPTIMESTAMP WITH LOCAL TIME ZON | Stores a moment an event occurs
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Silberschatz−Korth−Sudarshan • Database System Concepts‚ Fourth Edition Front Matter 1 1 11 11 35 35 36 87 140 140 141 194 229 260 307 307 308 337 363 393 393 394 446 494 529 563 563 564 590 637 Preface 1. Introduction Text I. Data Models Introduction 2. Entity−Relationship Model 3. Relational Model II. Relational Databases Introduction 4. SQL 5. Other Relational Languages 6. Integrity and Security 7. Relational−Database Design III. Object−Based Databases and XML Introduction 8. Object−Oriented
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the vacancy percentage and increase the revenue for the rental company. This is thought of as a temporary fix on a month to month lease basis and provides us with a good example of what microeconomics is. When a new company decided to move into town and increase the population as well as increase the number of jobs provides us with another good example of microeconomics. Because the population increased and the jobs increased means the rental rates are increased as well in order to respond to
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Setting up a database 1. Introduction In order to complete my client’s needs I created a database and I started my work with Word Access 2010. This is how it looked at the beginning as I started my work today on the 5th of the October 2010. Today was our starting point for creating my clients database. The screenshot above shows that I opened Access 2010 to begin creating my clients database. 2. Creating tables‚ setting fields + deciding on data types. Once Microsoft Access was open
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1. Let us design a database for an bank‚ including information about customers and their accounts. Information about a customer includes their name‚ address‚ phone‚ and Social Security number. Accounts have numbers‚ types(e.g.‚ savings‚ checking) and balances. We also need to record the customer(s) who own an account. Draw the E/R diagram for this database. Be sure to include arrows where appropriate‚ to indicate the multiplicity of a relationship. Solution: [pic] 2. For your E/R diagram of
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Database Design and Development | International Institute Of Computer Professionals | Francisco Lezama | Student ID: 00132002 | March 2013 NCC Education - Level 5 Diploma in Business Information Technology School of Accounting and Management‚ Trinidad‚ W.I. Table of Contents Task 1 1 Entity Relationship Diagram 1 Normalization 4 Data Dictionary 6 Task 2 10 2.1 Implementation and Data 10 2.2 Inserting data into tables for Members and Countries 16 2.3 Inserting Data
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Project Proposal Template 1: Business situation Business Name: The Queue Business description: The Queue is a company that provides service to customers by helping them buy products. Customers can order not only hot products that spent much time to queue‚ but also simple products for helping customers save their times. For example: Concert tickets‚ Garrett popcorn‚ Starbucks’ buy one free one promotion‚ or Jamsai books at the national book fair. Customers can contact with our company by using
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10/09/14 Marius Ouambo 2520 Mohammed Suleiman Oak Brook Unit 3 Assignment 1 There are many database-naming conventions to choose. As I read each of them I wanted to make sure‚ I got the idea that they were trying to explain for each of the different conventions. Though some of them had‚ more guidelines than other I still took into account all of the instructions because some of them did repeat each other with certain things. The convention that made the most sense to me is the
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MODULE: DATABASE DESIGN & DEVELOPMENT ASSIGNMENT TITLE: VETERINARY SURGERY DATABASE DEVELOPMENT Table of Content Task 1 Page 2 Task 2 Page 5 Task 3 Page 14 Task 4 Page 28 Task 5 Page 30 Reference Page 32 Bibliography Page 33 Task 1 Question: AIM: Draw an Entity Relationship Data Model that describes the content and structure of the data held by Petcare. Specify the cardinality ratio and participation constraint of each relationship type. Answer: I have prepared this assignment
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Exploring Microsoft Access 2010 by Robert Grauer‚ Keith Mast‚ Mary Anne Poatsy Chapter 2 Relational Databases and Queries Copyright © 2013 Pearson Education‚ Inc. Publishing as Prentice Hall. 1 Objectives • • • • • • • Design data Create tables Understand table relationships Share data with Excel Establish table relationships Create a single-table query Specify criteria for different data types Copyright © 2013 Pearson Education‚ Inc. Publishing as Prentice Hall.
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