语法分析阶段 meaning in English
syntactic analysis phase
syntax analysis phase
Examples
- This can be done during the semantic analysis phase of the compilation
这可以在编译的语法分析阶段完成。 - And the second part is parsing . at this part , the grammar of asn . 1 is analyzed and handled to meet the demand of antlr
第二阶段为语法分析阶段，主要工作为分析并处理asn . 1的文法，以得到符合antlr要求的正确文法。 - To obtain efficient query execution , optimization is the most important step . many researches have carried on research on this subject by going deep into the bottom of query engine
传统的数据库查询优化主要是从查询的底层执行流程和实现技术出发，通过关系代数的手段进行理论上的探讨，而且大量研究集中在查询执行的语法分析阶段。 - Many mature technologies on this level have been brought out , such as the relational algebra law , the improved logical query plan , the cost estimation of operation , the selective plan based on cost and order of joint , etc . although many methods have been tried out , no remarkable result or noteworthy technology has come to reality because of complexity of data decomposition and network effects
例如，从物理查询计划的底层磁盘输入输出到语法分析阶段的语法分析树、用于改进查询计划的代数定律、逻辑查询计划的改进，以及操作代价的估计、基于代价的计划和连接顺序的选择等全过程，都进行了不懈的努力。在这方面的研究已经非常成熟。