Question

What is the Query for list the column names for user created views in Oracle?

Answer 1

SELECT
      table_name,
      column_name,
      data_type
 FROM all_tab_columns
WHERE table_name = 'VIEWNAME'
  AND owner      = 'OWNER'
ORDER BY column_id

You can also use USER_TAB_COLUMNS and/or DBA_TAB_COLUMNS depending on your privileges and whether you have permission to query the view.