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

if we know the table and colum names but want to find out the number of times string is appearing for each schema:

Declare

owner VARCHAR2(1000);
tbl VARCHAR2(1000);
cnt number;
ct number;
str_sql varchar2(1000);
reason varchar2(1000);
x varchar2(1000):='%string_to_be_searched%';

cursor csr is select owner,table_name 
from all_tables where table_name ='table_name';

type rec1 is record (
ct VARCHAR2(1000));

type rec is record (
owner VARCHAR2(1000):='',
table_name VARCHAR2(1000):='');

rec2 rec;
rec3 rec1;
begin

for rec2 in csr loop

--str_sql:= 'select count(*) from '||rec.owner||'.'||rec.table_name||' where CTV_REMARKS like '||chr(39)||x||chr(39);
--dbms_output.put_line(str_sql);
--execute immediate str_sql

execute immediate 'select count(*) from '||rec2.owner||'.'||rec2.table_name||' where column_name like '||chr(39)||x||chr(39)
into rec3;
if rec3.ct <> 0 then
dbms_output.put_line(rec2.owner||','||rec3.ct);
else null;
end if;
end loop;
end;