工学 查询转换 释 query translation 查询转换 当一个数据库模式被转换为另一数据库模式时，原查询处理操作也要进行相应的转换，使之与后一模式的语法一致的过程。
数据库 数据库管理系统及其实现技术 释文 query translation 查询转换
- crop clean cultivation
- crop climate ecotype
- crop climatic adaptation
- crop-climatical potential productivity
- crop coefficient
- crop combination
- crop composition
- crop composition and distribution
- crop cultivar approval
- crop cultivar registration
- crop cultivation for stress-resistance
- crop damage in sunlight greenhouse due to continuous overcast days
- crop disease
- crop disease and pest disasters in China
- crop diseases and insect pests
- crop diseases in China
- crop distribution
- crop domestication
- crop domestication and evolution
- crop ecological adaptability
- crop evapotranspiration experiment
- crop farming
- crop gene discovery
- crop germplasm resources ex situ conservation
- crop germplasm resourceson-farm conservation