locationattribute
Table Name: locationattribute
The locationattribute table stores additional metadata and attributes associated with locations. It allows for flexible extension of location data, enabling specific attribute types and values to be assigned to locations for detailed classification and analysis.
Columns
| Column Name | Data Type | Description |
|---|---|---|
| locationAttributeId | int(11) | The primary key, uniquely identifying each location attribute. |
| locationAttributeTypeId | int(11) | The type of attribute, referencing the locationattributetype table. |
| locationId | int(11) | The associated location, referencing the location table. |
| value | varchar(255) | The value of the attribute. |
| typeName | varchar(50) | The name of the attribute type, providing an additional label. |
| typeValue1 | varchar(50) | A supporting value for the attribute, allowing flexible data categorization. |
| typeValue2 | varchar(50) | Another supporting value for the attribute, enabling richer data representation. |
| createdDate | datetime | The date the attribute was created. |
| createdByUserId | int(11) | The user who created the attribute, referencing the user table. |
| lastEditedByUserId | int(11) | The user who last edited the attribute, referencing the user table. |
| lastEditedDate | datetime | The date the attribute was last modified. |
Indexes
- Key Indexes:
- locationattribute_locationId_location_locationId_FK: Indexes the locationId column for efficient lookups by location.
- locattr_locAttrTypeId_locAttrType_locAttrTypeId_FK: Indexes the locationAttributeTypeId column for attribute type filtering.
- locattr_typeName: Supports queries filtering or searching by the typeName column.
- locattr_typevalue1: Optimizes searches involving typeValue1.
Foreign Key Relations
- locationId → location.locationId:
Links the attribute to a specific location in the location table, ensuring that each attribute is associated with a valid location. - locationAttributeTypeId → locationattributetype.locationAttributeTypeId:
Associates the attribute with its type, referencing the locationattributetype table to maintain consistent classification of attribute types.
Usage Notes
- Customizable Attributes:
The locationattribute table allows locations to have flexible, user-defined attributes, supporting a wide range of use cases. - Attribute Type and Value Flexibility:
Fields like typeName, typeValue1, and typeValue2 provide additional layers of categorization and classification, enabling detailed metadata storage. - Change Tracking:
The createdDate, createdByUserId, lastEditedDate, and lastEditedByUserId columns facilitate auditing and tracking of attribute modifications. - Index Utilization:
The indexes on locationId, locationAttributeTypeId, typeName, and typeValue1 ensure efficient retrieval of attributes for locations, especially in large datasets. - Integration with Location and Attribute Types:
The table seamlessly integrates with the location and locationattributetype tables, providing a robust mechanism for managing location-specific metadata.