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
Premium Database Data modeling Relational model
William Carlos Williams: “ The Use of Force” Katryn Punsalang English Composition II Professor Day 10 April 2012 Katryn Punsalang Professor Day English 112 10 April 2012 “ The Use of Force” William Carlos Williams (1883- 1963) is one of the prominent personas of American Poetry. He received his Pulitzer Prize for Poetry and the American Academy of Arts and Letters gold medal for poetry from the National Institute of Arts and Letters in 1963. Despite Williams’ recognition as one
Premium Short story William Carlos Williams Ezra Pound
Product Functions 2.3 User Characteristics 2.4 Constraints 2.5 Assumptions and Dependencies 2.6 Apportioning of Requirements 3. Specific Requirements 3.1 External interfaces 3.2 Functions 3.3 Performance Requirements 3.4 Logical Database Requirements 3.5 Design Constraints 3.5.1 Standards Compliance 3.6 Software System Attributes 3.6.1 Reliability 3.6.2 Availability 3.6.3 Security 3.6.4 Maintainability 3.6.5 Portability 3.7 Organizing the Specific Requirements
Premium Requirements analysis Software requirements
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. 2 Objectives (continued) • • • • Copy and run a query Use the Query Wizard
Premium Data type Foreign key Data modeling
Database Management Systems I work part time in a marketing research organization‚ which deals with research in the pharmaceutical industry. The total function of this department is to bring out a market research report‚ every month. This report is circulated to the pharmaceutical companies‚ and contains information on the sales of various drugs in the categorized geographical areas of the nation. An important stage in preparation of this report is giving a numeric code to the drugs prescribed
Free Programming language Computer Object-oriented programming
Lectures and your learning Tutorials and your learning Reading Time management The assignment process Revision Exams Checklist for studying faculty units and courses 7 7 8 9 13 14 15 16 17 18 22 Chapter 3 The research process: A basic guide The research process Using the internet for research 23 23 28 Chapter 4 Academic writing skills Characteristics of successful academic writing The assignment process Academic writing style Checklist for academic writing skills 29 29 30 36 40 Chapter 5 Writing
Premium Academia University Education
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
Premium
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
Premium Relational model Florida Keys Relation
1. Describe the relations that would be produced by the following relational algebra operations a) ПhotelNo(σprice>100(Room)) It will produce a single attribute (hotelNo) giving the number of hotels room prices greater 100. b) σHotel.hotelNo=Room.hotelNo(Hotel X Room) A join produce of hotel and room containing all the attributes of both. c) ПhotelName(Hotel Hotel.hotelNo=Room.hotelNo (σprice>100(Room))) It is a join of hotel and room with the price greater than 100. d) Guest(σdateTo>’1-June-12’(Booking)
Premium Relational model Relation
BACKGROUND A library ( derived from the French word "librairie" and Latin "liber" which means book) is an organized collection of information resources which are made available and accessible to a defined community for the purpose reference or borrowing. A library does not only provide physical access‚ but also digital access to information resources and would be a physical building or room‚ or a virtual space‚ or even both at the same time.( ) The collection in a library may include books
Premium Library