Oracle_Is_Retaining_Version (Boolean property)

You can specify the RETENTION parameter only if the database is running in automatic undo mode. Oracle database uses the value of the UNDO_RETENTION initialization parameter to determine the amount of committed undo data to retain in the database. In automatic undo mode, RETENTION is the default value unless you specify PCTVERSION. You cannot specify both PCTVERSION and RETENTION. You can specify the optional settings after RETENTION only if you are using SecureFiles. The SECUREFILE parameter of the LOB_storage_clause indicates that the database will use SecureFiles to manage storage dynamically, taking into account factors such as the undo mode of the database.