Almighty statement sql query field

SELECT t.table_name table_name, - the name of the table English
   t.comments table_comments, - table Chinese name
   t1.column_name column_name, - column name in English
   t2.DATA_TYPE || '(' || t2.DATA_LENGTH || ')' date_type, - field type and length
   t1.COMMENTS column_comments - Listed Chinese
FROM user_tab_comments t,
     User_Col_Comments t1,
     User_Tab_Cols t2
WHERE 1 = 1
AND t.table_name = t1.table_name
AND t2.column_name = t1.column_name
AND t2.table_name = t1.table_name
AND t1.comments LIKE '%%';

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Origin www.cnblogs.com/cttl-wdd/p/12065993.html