DATA: A collection of known facts and figures. May contain text‚ numbers‚ images‚ sounds or videos etc. It doesn’t convey useful information METADATA: Data about data (describes prop and char of other data) INFORMATION: 1. Processed form of data is called Information 2. Processed data to increase knowledge of user e.g Name‚ Ages Older than 30 * Bit: Smallest unit of data; binary digit (0‚1) * Byte: Group of bits that represents a single character * Field: Group of words
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(J/601/6617) | Assignment No: | 1 | | Unit Title: | Database Design | | Outcome(s):- | 1 Understand the features of relational databases2 Be able to design‚ create and populate a relational database3 Be able to test a relational database. | Assessment Grade and Criteria | Achieved Y/N | Resubmission Achieved Y/N | Resubmission Achieved Y/N | P2 | Design a relational database for a specified user need | | | | P3 | Create and populate a database | | | | P4 | Create features in
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mining and similar areas. The main reason of using OLAP to answer queries is speed. Relational databases store entities in discrete tables if they have been properly normalized. This structure is good for operational databases but for complex multi-table queries is comparatively slow. A better model for querying but worse for operational use is the dimensional database. OLAP take a snapshot of a relational database and restructures it into dimensional data. The queries can ten be run against
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expressed towards your co-workers truly assisted in the theme of community being portrayed by you in the narrative. I would like to particularly shift focus on the moment in the story when Danny came to you‚ throwing himself humbly into an organic relational situation in which you expressed a deep level care and genuine modesty for helping him with his troubles. Not only did you cover his shift over the weekend so he could attend the date with Tonya; but when he came to you asking for advice on how
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INTRO TO RDBMS-OODBMS-ORDBMS Seema Sirpal Delhi University Computer Centre Databases Data - raw facts/details DATABASE- A shared collection of logically related data (and a description of this data)‚ designed to meet the organization needs of an organization The Database Management System (DBMS) - software that enables users to define‚ create and maintain the database and provides controlled access to the database Why We Need DBMS There is an information explosion in today’s
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We discuss relational query optimizers in detail in Chapter 14. Section 13.1 lays the foundation for our discussion. It introduces query evaluation plans‚ which are composed of relational operators; considers alternative techniques for passing results between relational operators in a plan; and describes an iterator interface that makes it easy to combine code for individual relational operators into an executable plan. In Section 13.2‚ we describe the system catalogs for a relational DBMS. The catalogs
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DATABASE A database is a collection of data organized to meet users’ needs. Why This Matters Without data and the ability to process it‚ an organization would not be able to successfully engage in business activities‚ nor would it be able to generate reports to support knowledgeable workers and decision makers which in turn help’s to achieve organizational goals; it would not be able to pay employees‚ send out bills‚ and order new inventory. Databases have made it possible to map the structure
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Executive Summary (p. 2) 2. Dynamic Ticket Pricing Overview (p. ) 3. Braves Opportunity (p. ) 4. Marketing Objective and Strategy (p. ) 5. Expanding Dynamic Ticket Pricing in Turner Field (p. ) 6. Educating Fans on Dynamic Ticket Pricing (p. ) 7. Tactics (p. ) 8. Budget (p. ) 9. Conclusion (p. ) 10. Appendix (p. ) Executive Summary The number of Major League Baseball teams utilizing dynamic ticket pricing (DTP) has
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DATABASE ARCHITECTURE DATABASE CONCEPTS Figure 1.1 – Main Concepts of a DBMS Database is an organized collection of data. Database management system (DBMS) is a computer program (or more typically‚ a suite of them) designed to manage a database‚ a large set of structured data‚ and run operations on the data requested by numerous users. Data Manipulation Language (DML) is a family of syntax elements similar to a computer programming language used for inserting‚ deleting and updating
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PT2520 Unit 1: Database Concepts Who Needs a Database? Copyright © 2012 Pearson Education‚ Inc. Publishing as Prentice Hall Chapter 1.1 Database Overview • A database is a set of related data. • An old-style library catalog‚ a Rolodex or an address book are all databases. • Usually we use the term “database” to refer to electronic databases. Copyright © 2012 Pearson Education‚ Inc. Publishing as Prentice Hall Chapter 1.2 Flat File Databases • The simplest electronic database structures are
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