| A | B |
|---|
| Table | An arrangement of data in which the data are arranged in columns and rows. |
| Perspective | Point of view. |
| Primary key | A constraint which ensures that the column contains no null values and uniquely identifies each row of the table. |
| Data integrity (entity integrity) | The state or quality of the data in the database as being entire or complete, honest, and correct. |
| Generic | Relating to or descriptive of an entire group or class. |
| Column | A means of implementing an item of data (attribute) within a table. |
| Foreign key | A column or set of columns that defines how tables relate to each other. |
| White space | Space on a page or poster not covered by print or graphic matter. |
| High-volume entity | An entity that will have a large number of instances. |
| Data structure | A physical method of organizing a collection of data in a database to allow it to be manipulated effectively. Examples of data structures are: table, index, view. |
| Unique key | An integrity constraint that requires every value in a column or set of columns be unique. |
| Row | An entry in a table, consisting of values for each appropriate column. (an instance) |
| Property | A characteristic. |
