理学 数据库系统设计 释 functional dependency 函数依赖 数据库中一个关系中两组属性之间的约束。
数据库 数据库理论 释文 functional dependence, FD 函数依赖
- engineering surveying
- engineering survey of missile test site
- engineering survey results database
- engineering synergism
- engineering system breakdown
- engineering system outlook
- engineering technical management
- engineering techniques for petroleum exploration
- engineering technology environment
- Engineering & Test
- Engineering Test Satellite
- Engineering Test satellite-VII
- engineering thermal conductive materials
- engineering thermodynamics
- engineering thermophysics
- engineering thermoplastic resin matrix composites
- engineering-to-order
- engineering treatment of rock mass foundation
- engineering tribology
- engineering verification test for nuclear power plant
- engineering virtual reality technology
- engineering work breakdown
- Engineer Research and Development Center, U.S. Army Corps of Engineers
- engineer's level
- engineers' moral