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查询优化
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查询优化
Encyclopedia
理学
数据库系统
释
query optimization
查询优化
查询优化旨在通过选择有效策略,对给定的关系表达式求值,使得查询代价最小。
Computer
数据库
数据库管理系统及其实现技术
释文
query optimization
查询优化
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infrared imaging guidance
infrared imaging homing guidance
infrared imaging spectroscopy
infrared index
infrared inhibition of nozzle flow
infra-red inspection
infrared interference filter
infrared interferometer
infrared interferometry
infrared jammer
infrared jamming countermeasures
infrared laser
infrared laser chemistry
infrared laser semi-active combined guidance
infrared lens
infrared light sensor
infrared light source
infrared line scanner
infrared luminosity
infrared magnitude
infrared measuring distance
infrared microscope
infrared microscopy
infrared millimeter wave radar combined guidance
infrared modulation
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