ORA-24196: access the message in a wrong access mode

文档解释

ORA-24196: access the message in a wrong access mode

Cause: StreamMessage and BytesMessage could not be read when they were in write only mode and vice versa.

Action: Change the access mode using PREPARE, CLEAR_BODY and RESET procedures.

ORA-24196: 指的是以错误的模式访问消息。

这个错误通常由于使用了不正确的消息访问类型而引起的，可能是由于开发者在调用dbms_aq API时使用了不正确的参数引起的。

官方解释

This error is caused when an incorrect message access type is used. It could have been used by the developer when calling dbms_aq API with incorrect parameters.

This error can also occur on dequeue if the message flag indicates that the developer is trying to access the message with incorrect mode.

常见案例

使用dbms_aq API时提供了错误参数时会导致这个错误。

一般处理方法及步骤

1.首先检查dbms_aq API调用时提供的参数是否正确；

2.如果调用参数没有问题，则检查消息的message flag是否正确。