When a SQL statement contains three alias names, the pick lick does not show after using two alias names to retrieve the columns.
For example, in the statement below, after typing 'DA.' at the end, the pick list does not appear.
SELECT *
FROM SYS.DUAL DA
INNER JOIN SYS.DUAL DB ON DB.DUMMY = DA.DUMMY
INNER JOIN SYS.DUAL DC ON DC.DUMMY = DA.
