理学 数据库系统 释 data dependency 数据依赖 关系数据库中同属一个关系模式的多个属性之间的约束关系。数据依赖在计算机科学中有多个含义，此处仅限于关系数据库中的数据依赖。
数据库 数据库理论 释文 data dependence 数据依赖
- double arrow
- double asteroid
- double astrograph
- double ball sintering
- double banner advertisement
- double bar
- double barrier magnetic tunnel junction
- double barrier tunneling
- double-barrier tunneling
- double-bar warp machine
- double base propellant
- double-base propellant
- double bass
- double beam atomic absorption spectrometer
- double-beam atomic absorption spectrometer
- double-beam interference
- double-beam method
- double beam optical null infrared spectrophotometer
- double beam optical-null infrared spectrophotometer
- double-beam photometer
- double-beam polarimeter
- double beam spectrophotometer
- double-beam spectrophotometer
- double-beam system
- double-belt press