Introduction to databases
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Databases are collections of organized information that can be easily searched and reorganized. They are made up of records, with each record containing information in defined fields that can be filled in, like name, movie title, or ingredients. Many records together make up a complete database. Common examples of databases mentioned include IMDb, iTunes, a recipe collection, and a phone book, as they each organize various types of data into searchable records.
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Introduction to databases
- 1. Databases Just what are they, and why should I care?
- 2. What do these things have in common? IMDb iTunes Your comments A recipe box InfoCentre Patron’s catalog Phone book Our survey
- 3. They are all: Collections of information or data with a set form or structure organized in some way, and Able to be re-organized instantly (this is called indexing or sorting )
- 4. What are they made of? Fields = “fill-in the blanks” Many fields make up a record - like one blank form, recipe card, IMDb description Many records make up a database
- 5. Fields Fields = “fill-in the blanks” last name movie director favorite food ingredient cell number genre author
- 6. Fields Fields = “fill-in the blanks” Remember our survey ?
- 7. Records Many fields = one record one survey form one recipe card a rolodex card all the info for "Pirates..."
- 8. Databases Many records = one database
- 9. Ready for your quiz?
- 10. So, is this a database? Why or why not?
- 11. How about this? Why or why not?
- 12. Wow, she’s good!