| Entity |
| Name | DATABASE INSTANCE |
| Definition | A Database Instance represents processes and the portion of an Oracle database that runs in memory. |
| Attribute |
| Name | Definition | Datatype | Required | Is PK | Is FK |
| Database Instance Identifier | A Database Instance Identifier is a unique value assigned to represent a particular instance of a database. | INTEGER | Yes | Yes | No |
| Database Instance Name | A Database Instance Name is the word or words by which an exact database instance is known by. | VARCHAR(50) | Yes | No | No |
| Application Database Host Identifier |
An Application Database Host Identifier is a unique value that represents the assignment of an Application Host and the related Application Database |
INTEGER | No | No | Yes |