Data in multiple tables and columns

Question

Hi,
How to find if multiple tables are containing the same data?
'Apple' text is in three different tables and under three different column names.
Expected result
fruits_one
fruits_two
fruits_three
Select name, quantity from fruits_one;
Apple   1
Orange  1
Pear    1
select flavour, desc from fruits_two;
Red,   Apple
Blue, Berry
select order,date,details  from fruits_three;
101  11/11/2011    Grapes
102  12/01/2010    AppleThanks
Sandy

Answer 1

SQL> create table fruits_one (name varchar2(100), quantity number);
Table created.
SQL> insert into fruits_one
  2  select 'Apple'  name, 1 quantity from dual union all
  3  select 'orange'  name, 1 quantity from dual;
2 rows created.
SQL> commit;
Commit complete.
SQL> create table fruits_two (flavour varchar2(100), des varchar2(100));
Table created.
SQL> insert into fruits_two
  2  select 'Red' flavour,   'Apple' des  from dual union all
  3  select 'blue' , 'berry'  from dual ;
2 rows created.
SQL> commit;
Commit complete.
SQL> set serveroutput on
SQL> declare
  2  l_search varchar2(10) := 'APPLE';
  3  l_cnt number := 0;
  4  begin
  5 
  6  for x in (select column_name, data_type, table_name from user_tab_cols where data_type in ('VAR
CHAR2'))
  7  loop
  8     
  9    execute immediate  'select count(*) from "' || x.table_name ||'" where upper("' || x.column_n
ame || '") like ''%' || l_search || '%''' into l_cnt;
10   
11    if l_cnt > 0  then
12    dbms_output.put_line('table = "' || x.table_name ||'", column = "' || x.column_name ||'"');
13    end if;
14   
15  end loop;
16 
17  end;
18  /
table = "FRUITS_ONE", column = "NAME"
table = "FRUITS_TWO", column = "DES"
PL/SQL procedure successfully completed.
SQL>