| epochtimebase |
| Logical Entity Name | epochtimebase |
| Default Table Name | epochtimebase |
| Definition | Table used by TRUETIME package to say if time is nominal or UTC |
| epochtimebase Columns |
| ColumnName | Domain | Datatype | NULL | Definition |
| base |
VARCHAR2(1) | NO | ||
| ondate |
DATE | NO | ||
| offdate | DATE | YES |
| epochtimebase Primary and Unique Keys |
| Key Name | Key Type | Keys |
| pk5 | PrimaryKey | base, ondate |
| epochtimebase Foreign Keys |
| Parent Relationships: |
| Table Name | Type | Cardinality | Constraint Name | VerbPhrase | InversePhrase | Foreign Keys | Is Supertype | Deferrable | Initially Deferred |
| Child Relationships: |
| Table Name | Type | Cardinality | Constraint Name | VerbPhrase | InversePhrase | Foreign Keys | Is Subtype | Deferrable | Initially Deferred |
| epochtimebase Check Constraints |
| Check Constraint Name | CheckConstraint |
| timebasechk | base IN ('T','N') |