摘要:
用户可以自定义聚合函数 ODCIAggregate,定义了四个聚集函数:初始化、迭代、合并和终止。 Initialization is accomplished by the ODCIAggregateInitialize() routine, which is invoked by Oracle to initialize the computation of the user-defin... 阅读全文
posted @ 2016-05-31 20:31
魏生斌
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