why databases - introduction to databases and database terms

Why Databases?

It pays very well and leads to a great career.

Databases in Business: Example

How Box Office Returns are totaled In 1977• Start Wars Released in Theaters • Within a week no numbers • After months of manually counting, the first month totals

determined It was a hit!• Time to make merchandise… Toys!• By the time the toys would be ready to ship to market, it

would have been March of next year meaning no toys ready for holiday season and millions lost In potential revenue.

We can now get the information we Want instantly from databases

SQL Server can show you the data very quick

Data: What is being stored in a Database, such as raw numbers, text or images

Information: What we look at to make decisions.In other words, information is data that is processed or structured in such a way as to have true value to the user

SQL is a true master at turning data into information quickly.

Data vs. Information

The Need for Database Professionals

• Quick access to accurate data is needed by all business.

• Executives need to know how there company is performing

• If you know how SQL Server works there are many Businesses that need your service.

Types of Database Professionals

Tables - a collection of columns and rows of data.

The Relational Database

SQL Server and Applications

• Applications close when you log off the computer

• SQL Server should continue to run after you log off the computer

• SQL Server is a service

• Applications manage Services

• This application is called SQL Server Management Studio

More on the SQL Service

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