| Table: Contact_Category | |||
| Columns | |||
| Name | Type | Constraints | Description |
| contact_category_KEY | int | NOT NULL | AUTO-INCREMENT: Database assigned primary key for this table. |
| update__staff_KEY | int | NOT NULL | |
| contact_category_id | nvarchar (11) | NOT NULL | User defined identifier (unique). |
| description | nvarchar (250) | NOT NULL | User defined description. |
| contact_category_id_sortable | varchar (48) | NOT NULL | A representation of the contact_category_id column that sorts in natural order, meaning that digits are sorted as numbers while non-digits are sorted alphabetically. A trigger keeps this field synchronized with the content of contact_category_id. |
| create__changeset_KEY | int | NOT NULL | |
| update__changeset_KEY | int | NOT NULL | |
| Primary key | |||
| Name | Columns | Description | |
| PK_Contact_Category$contact_category_KEY | contact_category_KEY | CLUSTERED | |
| Unique constraints | |||
| Name | Columns | Description | |
| UK_Contact_Category$contact_category_id | contact_category_id | Each id must be unique. | |
| UK_Contact_Category$contact_category_id_sortable | contact_category_id_sortable | An index by the sortable ID is desired, and the algorithm ends up producing unique values. | |
| Incoming foreign keys | |||
| Name | Columns | Referencing table | Description |
| FK_Contact_Contact_Category__Contact_Category__contact_category_KEY | contact_category_KEY | Contact_Contact_Category | |