How to find all the tables by feild value in oracle

Question

Hi ...
I have a requirement to find the tables in a particular schema(suppose DEMO) by Field value..
Ex:
suppose in a  schema called DEMO  i have the tables.......T1,T2,T3,T4,T5..
all the above tables have the name column..
now i wan to know the tables whose column(name) have value as rajani.......
pls help.........
thank you
.+

Answer 1

Solutions from previous requests for the same...
michaels>  var val varchar2(5)
michaels>  exec :val := 'as'
PL/SQL procedure successfully completed.
michaels>  select distinct substr (:val, 1, 11) "Searchword",
                substr (table_name, 1, 14) "Table",
                substr (t.column_value.getstringval (), 1, 50) "Column/Value"
           from cols,
                table
                   (xmlsequence
                       (dbms_xmlgen.getxmltype ('select ' || column_name
                                                || ' from ' || table_name
                                                || ' where upper('
                                                || column_name
                                                || ') like upper(''%' || :val
                                                || '%'')'
                                               ).extract ('ROWSET/ROW/*')
                   ) t
--        where table_name in ('EMPLOYEES', 'JOB_HISTORY', 'DEPARTMENTS')
       order by "Table"or
11g upwards
SQL> select table_name,
       column_name,
       :search_string search_string,
       result
  from (select column_name,
               table_name,
               'ora:view("' || table_name || '")/ROW/' || column_name || '[ora:contains(text(),"%' || :search_string || '%") > 0]' str
          from cols
         where table_name in ('EMP', 'DEPT')),
       xmltable (str columns result varchar2(10) path '.')
TABLE_NAME                     COLUMN_NAME                    SEARCH_STRING                    RESULT   
DEPT                           DNAME                          es                               RESEARCH 
EMP                            ENAME                          es                               JAMES    
EMP                            JOB                            es                               SALESMAN 
EMP                            JOB                            es                               SALESMAN 
4 rows selected.