How to un-extend a table which extends sys_metadata as user executed "Track in Update Sets" UI action while creating the table.DescriptionCustom tables get created extending "Application File" if they click on 'Track in Update sets' link while creating the table even though user specifies the correct table for extension. After creation of table, we wouldn't be able to change the 'Extends Table'.Release or EnvironmentKingston,LondonCauseIf user executes 'Track in Update Sets' UI (user interface) Action while creating a table, it will set the parent field to "Application File(sys_metadata)" . 'Track in update set' is a UI action which will help developers to track any records modified/added/removed in Update-set (sys_update_xml) table. Application developers can track application changes in an update set to save or distribute a particular version of an application. During table creation, set Extends Table to Application File [sys_metadata].ResolutionIf user executed "Track in Update set" UI action accidentally while creating the table, Unfortunately there is no documented way this can be undone. As the table for which this is enabled will get reparented to sys_metadata and these are configuration tables and it will be better to stay away from running any undocumented script to un-extend. However, We can follow the below steps to un-extend the table from sys_metadata. Remove all the updates captured from sys_update_xml table for the table which was configured to "track on update-sets".Export XML/CSV the data from the table for backup.Remove all records from the table and then delete the table from sys_db_object.Once this is done, you can recreate the table and then import the data. This should be tested on the SUB PROD before implementing this on PROD.