Li Hongyan, Li Zhanhuai, T ang Shiwei. Base Type Extension in ASQL EnvironmentJ. Journal of Computer-Aided Design & Computer Graphics, 2002, 14(3): 256-260.
Citation:
Li Hongyan, Li Zhanhuai, T ang Shiwei. Base Type Extension in ASQL EnvironmentJ. Journal of Computer-Aided Design & Computer Graphics, 2002, 14(3): 256-260.
Li Hongyan, Li Zhanhuai, T ang Shiwei. Base Type Extension in ASQL EnvironmentJ. Journal of Computer-Aided Design & Computer Graphics, 2002, 14(3): 256-260.
Citation:
Li Hongyan, Li Zhanhuai, T ang Shiwei. Base Type Extension in ASQL EnvironmentJ. Journal of Computer-Aided Design & Computer Graphics, 2002, 14(3): 256-260.
Two ways of base type extension in ANGEL Structured Query Language are achieved. Stress is laid on User Defined Function (UDF) mechanism, including the design of UDF's memory and storage form, the generation and management of object code for function body, and the realization of dynamic linking. With UDF, the operator redefinition and overriding are also provided.
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