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| data level | |||
| data tier (A layer that is part of a three-tier server software architecture that stores and persists data. Each logical server machine group contains an interface tier (a perimeter network), an application tier, and a data tier. This architecture provides high levels of scalability) | |||
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Datenebene : 1 短语, 1 学科 |
| 信息技术 | 1 |