Database Fundamentals

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  • 5.01 Database Fundamentals
  • 5.01 Database Fundamentals Databases help you manage practically endless types of information: sales and inventory numbers, student records, or a home collection of DVDs, CDs, and videotapes, just to name a few.
  • 5.01 Database Fundamentals
  • 5.01 Database Fundamentals Tables All databases contain one or more tables. Queries Queries can combine data from different tables, update your data, and perform calculations on your data.
  • 5.01 Database Fundamentals
  • 5.01 Database Fundamentals
  • 5.01 Database Fundamentals Distribute B5.01-03 “Parts of a Database” Activity and B5.01-04 “Parts of a Database Activity Two” Activity for students to work on.
  • 5.01 Database Fundamentals
  • 5.01 Database Fundamentals
  • 5.01 Database Fundamentals
  • 5.01 Database Fundamentals
  • 5.01 Database Fundamentals
  • 5.01 Database Fundamentals

Transcript

  • 1. Objective 5.01: Understand database tables used in business. Database Fundamentals
  • 2.
    • A database is a tool for organizing, storing, retrieving, and communicating groups of information that have similar characteristics
    What is a database? 5.01 Understand database tables used in business Slide
  • 3. Examples of Business Databases
    • Telephone book
    • Student data
    • Music
    • Fingerprint database
    • Dictionaries
    • Customer data
    • Real estate listings
      • MLS listings online
    • Hospital/patient data
    • Inventory
      • Barcode scanner keeps inventory in database
    5.01 Understand database tables used in business Slide
  • 4. What makes a database? 5.01 Understand database tables used in business Slide
    • Databases consist of four objects:
    • Tables store data in rows and columns*
    • Queries retrieve and process data
    • Forms control data entry and data views
      • Customized manner of inputting data into a database or presenting data on a screen
    • Reports summarize and print data
    • *In this objective, our focus is on tables
  • 5. Tables: the Building Blocks of all Databases 5.01 Understand database tables used in business Slide
    • Tables organize data
    • Each database consists of one or more tables
    • Tables store data, so they’re essential building blocks of any database.
    • All databases contain at least one table
    • A database should have a separate table for every major subject, such as for employee records or customer orders. Data should not be duplicated in multiple tables.
    • Tables contain R ows called R ecords and Columns called Fields .
  • 6. Components of a Database Table
    • Record – A group of related fields of information. Everything on one row is a record
    • Field – One item or bit of information in a record; represented by a COLUMN . Comprised of entries
    • Entry – Data typed into a field. Made up of characters. Example: John Doe is an entry in the name field. Also known as data.
    5.01 Understand database tables used in business Slide
  • 7. 5.01 Understand database tables used in business Slide Database Tables: The Big Picture To calculate the number of entries in a database multiply the number of fields by the number of records. Ex. 5*26= 130 entries in this database. 3. Cells - ENTRIES 1. Rows – RECORDS 2. Columns - FIELDS
    • Records
    • Entry
    • Fields
  • 8. Discussion
    • Name
    • Birth date
    • Social Security No.
    • Street
    • City
    • State
    • Zip
    • Phone
    • Each item on the left is classified as a/an:
    • Table
    • Record
    • Field
    • Entry
    5.01 Understand database tables used in business Slide
  • 9. Discussion
    • Susan Almond
    • 10/22/1985
    • 245-88-9845
    • 31 Bessemer St.
    • Greensboro
    • NC
    • 25233
    • 336-585-5646
    • Each item on the left is classified as a/an:
    • Table
    • Record
    • Field
    • Entry
    5.01 Understand database tables used in business Slide
  • 10. Discussion
    • Susan Almond
    • 10/22/1985
    • 245-88-9845
    • 31 Bessemer St.
    • Greensboro
    • NC
    • 25233
    • 336-585-5646
    • All of the information about Susan Almond is classified as a/an:
    • Table
    • Record
    • Field
    • Entry
    5.01 Understand database tables used in business Slide
  • 11. Discussion
    • Information about multiple employees is classified as a/an:
    • Table
    • Record
    • Field
    • Entry
    5.01 Understand database tables used in business Slide
  • 12. Susan’s Record 5.01 Understand database tables used in business Slide One record is displayed from the Employee Table above. The table contains 8 fields. Name Bday SS Street City St Zip Phone Almond, Susan 10/22/1985 245-88-9845 31 Bessemer St Greensboro NC 25233 336-585-5646
  • 13. Test your knowledge
    • Using the last page of the Database Fundamentals graphic organizer, classify each database component.
    5.01 Understand database tables used in business Slide