ORA-31495: error in synchronous change table on "[string]"."[string]"
Cause: There was an error originating from this synchronous change table. One possible cause is that schema redefinition has occurred on the source table and one or more columns in the change table are now a different type than corresponding source columns. Another possible cause is that there is a problem accessing the synchronous change table.
Action: Check further error messages in stack for more detail about the cause. If there has been schema redefinition, drop and recreate the synchronous change table.
Error Type: ORA