GKD-PL/SQL引擎中表达式处理模块的设计与实现

Design and Implementation of Expression Process Module in GKD-PL/SQL Engine

讨论了GKD-PL/SQL引擎中表达式处理模块的设计思想和实现技术,包括GKD-PL/SQL语言表达式的组成,如表达式操作符、函数调用、游标变量和属性值处理等,表达式的内部数据结构表示,以及表达式编译模块和解释执行模块的结构和实现细节。

This paper discusses the design and implementation techniques of GKD-PL/SQL engine. It focuses on the syntax of the expression, e.g. the operators, function call, cursor and its attributes etc, and the internal data structure. The details of infrastructure and implementation techniques for expression compiling and executing modules are also discussed.