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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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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Mobile Database Systems [ 1 ] Jerri Scott Technical Essay #1 Mobile Database Systems MGT – 5151 Database Systems Management November 7‚ 2010 [ 2 ] Due to the increasing utilization of mobile networks and devices‚ mobile database systems have become a prominent method of data access. Data maintenance becomes a necessity for users who require mobility. Therefore‚ the usage of mobile database systems provides a convenient way of data creation‚ collection and management through mobile
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Assignment While the database management system terminology has become widespread in India‚ there is a vast space for the adoption of the systems. The market potential still has a significant amount of spread to increase market share. A computer database is a repository of structured data or information and a database management system is a collection of programs that allows storage and retrieval of this data efficiently. Database management systems have undergone significant changes over the last thirty
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Databases | Database Construction and Management 1. What is a database? A database is one or more large structured sets of persistent data‚ usually associated with software (database management system) to update and query the data. A simple database might be a single file containing many records‚ each of which contains the same set of fields where each field is a certain fixed width - From FOLDOC A database is a collection of data elements (facts) stored in a computer in a systematic way
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prescribed book Chapters 1 - 3: Chapter 5: Chapter 6: Chapter 7: Chapter 12: Chapter 14: Chapter 16: Revise as for Assignment 01 Entity relationship modelling Advanced data modelling Normalisation of database tables Transaction management and concurrency control Distributed database management systems Database connectivity and web development Question 1 What is a composite entity‚ and when is it used? [4 marks] [8 marks] Question 2 Briefly‚ but precisely‚ explain the difference between single-valued
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chapter 10 The REA Approach to Database Modeling T his chapter examines the resources‚ events‚ and agents (REA) model as a means of specifying and designing accounting information systems that serve the needs of all of the users in an organization. The chapter is comprised of three major sections. The first introduces the REA approach and comments on the general problems associated with traditional accounting practice that can be resolved through an REA approach. This section presents the REA
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INTRODUCTION TO CAPITAL BUDGETING Overview 159 7.1 The NPV Rule for Judging Investments and Projects 159 7.2 The IRR Rule for Judging Investments 161 7.3 NPV or IRR‚ Which to Use? 162 7.4 The “Yes–No” Criterion: When Do IRR and NPV Give the Same Answer? 163 7.5 Do NPV and IRR Produce the Same Project Rankings? 164 7.6 Capital Budgeting Principle: Ignore Sunk Costs and Consider Only Marginal Cash Flows 168 7.7 Capital Budgeting Principle: Don’t Forget the Effects of Taxes—Sally and Dave’s
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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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History of Relational Database Hao-Wei He Wilmington University October 9‚ 2010 Abstract Database system have been inseparable with our daily life‚ since IBM developed the hierarchical database management system in 1969‚ database system has been innovated many times‚ such as hierarchical database‚ network database‚ relational database‚ and object-oriented database. Nowadays‚ relational database still is the most popular model used by different industries; this article is going to introduce
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