Different tables' column have same value

Question

Hi,
How to find out which coulmns in database are stoing a value. ex: 'Tier'
I need to know different table's column in database have value 'Tier'.
table1.col1 ='Tier'
table2.col16='Tier'
table3.col21='Tier'Thanks
Sandy

Answer 1

One possible solution is below. Take care with the performance, as the procedure is checking every schema.table.column VARCHAR ou CHAR. The number of columns can easily go to thousands and affect the overall performance of your DBMS.
The example is explicitlly avoiding tables in schema SYS and SYSDBA.
set serveroutput on size 999999
declare
cnt number;
sql_comm varchar2(1000);
begin
for TRec in (select owner, table_name, column_name, data_length
               from all_tab_columns
              where data_type IN ('VARCHAR2', 'CHAR')
                and owner not in ('SYS', 'SYSTEM')
                and data_length >= 4
              order by 1, 2, 3) loop
    sql_comm := 'select count(*) from '||TRec.owner||'.'||TRec.table_name||' where '||TRec.column_name||'= ''Tier''';
    execute immediate sql_comm into cnt;
    if cnt>0 then
        dbms_output.put_line(TRec.owner||'.'||TRec.table_name||'.'||TRec.column_name||' has '||cnt||' rows.');
    end if;   
end loop;         
end;
Miguel