1. I WANT ONE OF THESE
FROM ONE OF THEM!

2. Databases!!!
Kim Schmidt, Gina Johnston, Lynn Langit
August 2008 - Irvine, CA

3. Agenda

4. What is a database?
Databases take the stress out of finding information!

5. Why do we need them?
An Excel Spreadsheet is a flat file, meaning it has a bunch of information over & over again, with no way to customize what you see or avoiding duplicate information.

6. How are they used?
A relational database is a single database spread across multiple tables. Think of a database as a file cabinet and each drawer of the file cabinet as a table within the database

7. Please allow me to introduce you to a DATABASE!!!
Even though a database looks like this when you see one in real life.

8. this is a databasewithout itsmakeup!
REALITYCHECK!

9. Activity #1: Introducing Databases
Dont be afraid by what you saw on the previous slide, because I totally make sense! So lets get beyond my bad hair day & bloated appearance, & get to know the real me!

10. ?

11. Walkthrough & Explanations

12. The previous slide showed the database design (tables & columns), now we will see the actual data contained in rows

13.

14. What we just learned:

15. How to get the exact data you want to see wherever you want to see it

• SELECT * FROM Boyfriends = T-SQL (Language). You can ask for very specific information this way
• 16. Because of the relationships between the tables, you can get information from multiple tables using 1 question (query)
• 17. Writing T-SQL statements QUERY the database tables (ask them questions)
• 18. If you wanted to ask the same question many times, you can create a View, which just saves your question so you dont have to type it again. The next time you run the View, you get that same question answered WITH UPDATED DATA!