Please help me answer these following questions, no answer is allowed to be used more than once.

1. A database _____________ is a grid consisting of rows of information about entities within an organization.

2. A request to obtain specific information from a database based upon specific criteria is called a ______________.

3. The standard language used by all modern database management systems to add, edit, and query information within a database is ____________.

4. One row of information in a database table is called a ______________.

5. Two popular database management systems are __________ and ____________.

6. The process of describing the properties (field name, datatype, field length, etc.) of the data that is going into a database table is called__________.

7. A column in a database table (that provides a piece of data about that tables entity) is called a _____________.

8. The field in a database that is unique for each record and is used to uniquely identify each record is called the _________________

9. In order to join (or relate) two tables in a relational database they must have __________.