按照查询预处理的处理过程，分别描述了MDBI查询预处理器中词法分析、语法分析、语义分析的设计和实现。
According to the processing procedure of query pre-compiler, this paper givens the general design and implementation of syntax analysis, semantics analysis in MDBI query pre-compiler.
按照查询预处理的处理过程，分别描述了MDBI查询预处理器中词法分析、语法分析、语义分析的设计和实现。
According to the processing procedure of query pre-compiler, this paper givens the general design and implementation of syntax analysis, semantics analysis in MDBI query pre-compiler.
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