Computers: Understanding Tech 6e 12.1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| database | A collection of data organized in one or more data tables stored on a computer, managed using database management system software.
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| entity | Anything you want to keep a record of in a database, including something that exists physically, such as a person or product, or something conceptual, such as a sales transaction.
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| field | A single type of information in a data table, such as a name, an address, or a dollar amount. A field may have multiple properties, such as data type, field name, and field size.
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| data type | A field property that specifies the type of information the field will hold. Examples include numeric, alphanumeric (numbers and letters), and date.
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| field name | A unique name assigned to a field by the person developing the database.
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| numeric data | A field data type in which the field holds integer data, consisting only of numbers. Also called integer data.
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| alphanumeric data | A field data type in which the field holds text data, consisting of letters, numbers, and sometimes special characters. Also called text data.
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| record | A collection of related fields describing a single entity (person, place, thing, or event) in a data table.
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| data table | A collection of records of the same type in a database. Called data file in some systems.
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| transaction | A business activity central to the nature of an enterprise—for example, a product being sold, an airline flight being booked, or a college course grade being recorded.
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| electronic office | An office that implements an office information system (OIS) to automate office work.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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