If there are tables in the customer system that contain fields of the deprecated data type LONG, these tables could lead to errors during a downtime-optimized conversion.

The SUM creates a snapshot table with the new data type BLOB. However, since the database triggers created by SUM write directly to the snapshot table, this leads to an error because in the initial table the field is still of data type LONG. This issue currently only exists on Oracle databases.

For tables relevant for downtime-optimized conversion, the customer must convert the data types of these tables from LONG to BLOB prior to starting the downtime-optimized conversion. If a data type conversion is not possible on the customer system, create an incident on component BC-UPG-TLS-TLA for a detailed analysis.