Research Article
Promoting Geospatial Service from Information to Knowledge with Spatiotemporal Semantics
Table 3
Table of a service relationship.
| Entry | Type | Notion |
| ID | long | Unique identification | Service _id | varchar | Related service | Service _id | varchar | Related service | MD_id | varchar | Related metadata | r | string | Relationship between services (optional pattern, circulation pattern, sequential pattern) | UNIQUE(Service_id, Service_id) | Unique constraint key | PRIMARY KEY (ID) | Primary key |
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