SQL

What is a Database?

                1. A collection of data.

                2.  Made up of "tables", made up of columns and rows.

                3. Tables store similar information.

Primary Key

                1. Column that is 100% unique.

                2. No rows can have same primary key (ex. social security #).

SQL

                1. Language that database use.

                2. Stands for structured Query language.

                3. SQL is used to communicate with a database.