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

Oracle Error Message

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

Reason for the Error

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

Solution

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