ORA-41686: use of “collection” invalid for the primitive event

文档解释

ORA-41686: use of “collection” invalid for the primitive event

Cause: An attempt was made to define a rule condition with “collection” element when the corresponding event was not configured for collections of events.

Action: Correct the rule condition and try again.

ORA-41686: use of “collection” invalid for the primitive event错误表明在对primitive event（原始事件）参数调用collection()函数时出错，原因是原始事件/原始参数不支持collection函数，此函数只适用于复合类型/复合参数.

官方解释

ORA-41686 is an Oracle Database error code, meaning “use of” collection “invalid for the primitive event”. This error indicates that an attempt was made to use the collection() function on a primitive event/primitive parameter which is not supported, since the collection() function can only be used on composite types/composite parameters.

常见案例

这个错误的一个典型的应用案例是在调用数组类型的复合参数时，开发者误用了collection()函数。collection()函数只能应用在复合数据类型上，EOracle调用会报错，提示用户不能调用collection()函数，要改用traverse()函数。

一般处理方法及步骤

1、检查是否满足collection()函数的使用条件，是复合参数类型；

2、换用traverse()函数来调用复合参数；

3 、重新编译/重新部署程序，尝试运行，看看程序能否正常运行。