Welcome to the Solix Community Community › Category: Questions › How to fix exception resulting from EDMS data archiving while verifying that a DB table has LONG type column. 0 Vote Up Vote Down hakim.mohamed asked 3 years ago I’ve tried to archive oracle DB table to XML but the archiving has failed with the message that exception has occurred while verifying a specific table has LONG type. I’ve tried with other tables and change all Number column type to varchar but the archiving failed with the same exception. 1 Answers 0 Vote Up Vote Down vijay.gudikal answered 3 years ago Primary key Column needs to be defined for each table involved in a Archive Config in order to Archive data from source tables. Seems to be Primary key Column for that table is not defined, Pls Update a Primary key Column in KB Table Columns and try again. Hopefully by adding primary key column this issue will get resolved.