Finding column and table name

Question

Hi,
I need to find out that '101c_0000000018' value is which column and table of database.
Is there a way to find it? I am looking for table and column which is storing this data.
Thanks
Sandy

Answer 1

It's possible but performance is going to be horrible.
Assuming the data is stored in a CHAR or VARCHAR2 column, something like
DECLARE
  l_value VARCHAR2(100) := '101c_0000000018' ;
  l_cnt   PLS_INTEGER;
  l_sql    VARCHAR2(1000);
BEGIN
  FOR x IN (
      SELECT table_name, column_name
        FROM dba_tab_cols
       WHERE owner = <<name of schema>>
         AND data_type IN ('CHAR', 'VARCHAR2' )
  LOOP
    l_sql := 'SELECT COUNT(*) FROM ' || x.owner || '.' || x.table_name || ' WHERE ' || x.column_name || ' = :1';
    EXECUTE IMMEDIATE l_sql
      INTO l_cnt
     USING l_value;
    IF( l_cnt > 0 )
    THEN
      dbms_output.put_line( 'Found the value ' || l_value || ' in owner = ' || x.owner || ' table name = ' || x.table_name || ' column name = ' || x.column_name );
    END IF;
  END LOOP;
END;Justin
Edited by: Justin Cave on Dec 8, 2011 12:20 PM