Search All Fields In All Tables For A Specific Value (Oracle)

Question

Is it possible to search every field of every table for a particular value in Oracle?

There are hundreds of tables with thousands of rows in some tables so I know th

Answer 1

I did some modification to the above code to make it work faster if you are searching in only one owner. You just have to change the 3 variables v_owner, v_data_type and v_search_string to fit what you are searching for.

SET SERVEROUTPUT ON SIZE 100000

DECLARE
  match_count INTEGER;
-- Type the owner of the tables you are looking at
  v_owner VARCHAR2(255) :='ENTER_USERNAME_HERE';

-- Type the data type you are look at (in CAPITAL)
-- VARCHAR2, NUMBER, etc.
  v_data_type VARCHAR2(255) :='VARCHAR2';

-- Type the string you are looking at
  v_search_string VARCHAR2(4000) :='string to search here...';

BEGIN
  FOR t IN (SELECT table_name, column_name FROM all_tab_cols where owner=v_owner and data_type = v_data_type) LOOP

    EXECUTE IMMEDIATE 
    'SELECT COUNT(*) FROM '||t.table_name||' WHERE '||t.column_name||' = :1'
    INTO match_count
    USING v_search_string;

    IF match_count > 0 THEN
      dbms_output.put_line( t.table_name ||' '||t.column_name||' '||match_count );
    END IF;

  END LOOP;
END;
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