Individual Database Design Paper Courtney Gardner DBM/380 05-17-2010 James Butcher Week Individual Database Design “A database is a structured collection of records or data that is stored in a computer system. In order for a database to be truly functional‚ it must not only store large amounts of records well‚ but be accessed easily. In addition‚ new information and changes should also be fairly easy to input (tech-faq.com)”. To ensure practical use over a long period of‚ databases ought to
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The entity-relationship model (or ER model) is a way of graphically representing the logical relationships of entities (or objects) in order to create a database. entity type is a collection of entity instances sharing similar properties Strong Entity Vs Weak Entity An entity set that does not have sufficient attributes to form a primary key is termed as a weak entity set. An entity set that has a primary key is termed as strong entity set. A weak entity is existence dependent. That is the
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elements of a computer based information system is the database. A database is a collection of records or information that is stored in a computer in a structured manner so that information can be stored‚ managed‚ and retrieved. Databases are very useful for manipulating large amounts of data and producing reports and documents. This paper takes a look at the Oracle database system and its usage within my organization. The main objective of a database is to help an organization accomplish its goals
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Title: Computer database technology This paper investigates such important aspect of car business as database technology‚ in particular workflow database technology and its influence on the productivity. The main aim of this paper is to investigate the role of database technology in car plants. Nowadays there are hundred of workflow products and technologies at the market. Thus the database technologies are influencing this area this or that way. Databases assure a simple and easy access to data
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Oracle Table Triggers Version 11.1 General Data Dictionary Views Related To DDL Triggers trigger$ dba_triggers all_triggers user_triggers System Privileges Related To Table Triggers create trigger create any trigger administer database trigger alter any trigger drop any trigger Table Trigger Firing Options -- before constraints are applied BEFORE INSERT BEFORE UPDATE BEFORE DELETE -- after constraints are applied AFTER INSERT AFTER UPDATE AFTER DELETE Transaction
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to real-time database management systems to be used in such control-systems. By integrating a real-time database management system into a vehicle control-system‚ data management on a higher level of abstraction can be achieved. Current database management concepts are not sufficient for use in vehicles‚ and new concepts are necessary. A case-study at Volvo Construction Equipment Components AB in Eskilstuna‚ Sweden presented in this thesis‚ together with a survey of existing database platforms confirms
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Running Head: Database Development Case Study: Database Development Maintenance plans and activities that could be performed in order to improve data quality In order to improve the quality of datasets various activities to be performed like error detection and correlation‚ process design and process control and improvement In error detection method‚ errors are detected by comparing data to a correct baseline and by checking for missing values. By examining time stamp incorrected
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What problem would you encounter if you wanted to produce a listing by city? How would you solve this problem by altering the file structure? Some of the project managers are mentioned several times‚ that would cause duplication in the city database. 3. If you wanted to produce a listing of the file contents by last name‚ area code‚ city‚ state‚ or zip code‚ how would you alter the file structure? Divide address capabilities‚ by dividing MANAGER_ADDRESS into its component parts (MGR_STREET
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Lecture-13 Structured Query Language (SQL) Introduction Commercial database systems use more user friendly language to specify the queries. SQL is the most influential commercially marketed product language. Other commercially used languages are QBE‚ Quel‚ and Datalog. Basic Structure The basic structure of an SQL consists of three clauses: select‚ from and where. select: it corresponds to the projection operation of relational algebra. Used to list the attributes desired in the
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required: yes/no Tutor______________________ Final Grade_________ Date _______________ [INOKA MEDAGODA COMP 1302] Page 1 Table of Contents Content Page D1. Business Rules D2. ER Diagram D3. Relational Schema D4. Normalization D5. Database View D6. SQL Codes D7. Player Registration Form D8. Report D9. Master detail form Reference 02 - 03 03 - 04 04 - 05 05 - 06 06 - 07 07 - 08 08 - 11 11 - 13 13 – 15 15 - 16 [INOKA MEDAGODA COMP 1302] Page 2 D1. BUSINESS RULES 1. An
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