A method for solving parallel query errors in Oracle database _oracle

Oracle's parallel query is the use of multiple operating system-level server process to complete a SQL query at the same time, this article explains the Oracle database parallel query Error resolution method is as follows:

1. Error description

ORA-12801: Error signal emitted in parallel query server P007
ORA-01722: Invalid number
12801.00000-"error signaled in parallel query server%s"
* Cause:a Parallel Query server reached an exception condition.
*action:check the following error message for the Cause,and consult your error manual for the appropriate Action.
*comment:this error can be turned out with event 10397,in which case the server's actual error is signaled instead.

2. Error reason

Error occurred while adding parallelism

3. Solutions

Ensure consistency in added parallelism and queries, and ensure that query parameters are consistent with data types in database tables