1. Define each of the following Terms a) File Organization: A technique for physically arranging the record of a file on secondary storage devices. b) Sequential File Organization: The storage of records in a file in sequences according to primary key value. c) Indexed File Organization: The storage of records either sequentially or consequentially with an index that allows software to locate individual records. d) Hashed File Organization: A storage system in which the address for each record
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issues in the normalization vs. performance trade-off? Discuss. Your essay should (1) define and describe the characteristics of normalization‚ (2) define and describe the characteristics of performance‚ and (3) define and describe what is meant by “performance trade-off”‚ (4) summarize your essay with recommendations and/or guidelines regarding use of normalization in database design. ANS: When we take a close look in designing a database one may not be thinking of normalization and performance
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Database: specialized structures that allow computer-based systems to store‚ manage‚ and retrieve data very quickly. Data are raw facts. Information is the result of processing raw data to reveal its meaning. To reveal meaning‚ information requires context. Raw data must be properly formatted for storage Data constitute the building blocks of information. Information is produced by processing data. Information is used to reveal the meaning of data. Accurate‚ relevant‚ and timely information
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Abstract Database Systems has a practical‚ hands-on approach that makes it uniquely suited to providing a strong foundation in good database design practice. Database design is more art than science. While it’s true that a properly designed database should follow the normal forms and the relational model‚ you still have to come up with a design that reflects the business you are trying to model. This paper shows describes design process of database project. The importance of Completing the Design
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Tour Operator Agency Database Name: Institutional Affiliation: Tour Operator Agency Database 1. Data Model a. Propose an efficient data structure that may hold the tour operator’s data using a normalization process. Describe each step of the process that will enable you to have a 2nd Normal Form data structure The Company is seeking to have a database that will accommodate and sustain its business operations as it continues with the expansion plan. The existing database system is restricted
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CHAPTER I Background of the Study Nieto Dental Clinic is a private dental clinic with a primary mission to help create a beautiful smile‚ and to provide a complete quality dental care for all the patients. Nieto Dental Clinic aims to provide the patients with a premium level of service and to raise the standard of Dental care in the Philippines. Nieto Dental Clinic is passionate about ensuring that the patients are experiencing a relaxing and satisfying service as possible
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Data mining and OLAP are the most common Business Intelligence technologies. The term Business Intelligence refers to computer based methods to identify and extract useful information from business data. Online Analytical Processing commonly known as OLAP provides summary data and generates rich calculations. OLAP is a class of systems that provide answers to multidimensional queries. OLAP is typically used in business reporting for sales‚ marketing and various such domains. OLAP enables the users
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pass mark for assignments. Due Date: Student Signature Submitted Date: Table of Contents ACKNOWLEDGEMENT 4 INTRODUCTION 5 TASK 1 6 DESIGN 6 Normalization 8 ENTITY RELATIONSHIP MODEL 10 Data dictionary 11 TASK 2 13 DATA 13 QUERY 13 TASK 3 20 DERIVED DATA 20 Task 4 22 EVALUATION 22 CONCLUSION 23 REFERENCE 24 ACKNOWLEDGEMENT I would like to take this opportunity to express my gratitude to the almighty
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Organization and Its Working 4 The existing system of functioning 4 The Processes Followed in the Company 5 Drawbacks of the Existing System 6 PROPOSED PROCUREMENT MANAGEMENT SYSTEM 7 Entity Relationship Diagram 7 Entities in the MIS: 8 Normalization 14 Analysis of Entity Relationship Diagram 16 The various associations with cardinalities are as follows 17 E-R Diagram of the Procurement Management System through MS-Access 20 E-R Diagram of the Procurement System through MS-Visio 21 Forms
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Key concepts Let me start by naming a few of the most important concepts in relational database design. A basic understanding of these will be required to understand the rest of the article. * Primary Key (PK) A column with a unique value for each row. Although not all database management systems (DBMS) require you to put a PK into each table‚ from a design perspective a PK is a requirement. No table should be without one. * Foreign Key (FK) These define relationships between tables. When
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