How to fix the Oracle error ORA-13237: internal error during R-tree concurrent updates: [string]?

In this post, you’ll learn more about the Oracle ErrorORA-13237: internal error during R-tree concurrent updates: [string] with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-13237: internal error during R-tree concurrent updates: [string]

Reason for the Error ORA-13237: internal error during R-tree concurrent updates: [string]

An inconsistency is encountered during concurrent updates, possibly due to the use of serializable isolation level.

How to fix the Error ORA-13237: internal error during R-tree concurrent updates: [string] ?

You can fix this error in Oracle by following the below steps

Change the isolation level to “read committed” using the ALTER SESSION statement, or contact Oracle Support Services with the message text.