Continue the query despite invalid date in a view

Question

Hi ,
SQL :
select id , mydate from myview
where mydate >= sysdate - 1
Error : ORA-01858 , a non-numeric character was found where a numeric was expected
i am trying to find the record that is showing this invalid date
else will have to do a manual search
or write a procedure to find the record
but Is it possible to continue the view despite there's a invalid date ?
with a status column "VALID_DATE" that show Y - for valid date and N - for invalid date ?
Please advise
tks & rgds

Answer 1

Hi,
Connected to Oracle Database 10g Express Edition Release 10.2.0.1.0
Connected as hr
SQL> CREATE TABLE T(COL VARCHAR2(10));
Table created
SQL> INSERT INTO T(COL) VALUES ('12/02/2009');
1 row inserted
SQL> INSERT INTO T(COL) VALUES ('22/02/2009');
1 row inserted
SQL> INSERT INTO T(COL) VALUES ('99/02/2009');
1 row inserted
SQL> COMMIT;
Commit complete
SQL> SET SERVEROUTPUT ON
SQL> DECLARE
  2     v_date DATE;
  3     v_mask VARCHAR2(10) := 'DD/MM/YYYY';
  4  BEGIN
  5     FOR REG IN (SELECT COL FROM T) LOOP
  6        BEGIN
  7           v_date := to_date(REG.COL,
  8                             V_MASK);
  9        EXCEPTION
10           WHEN OTHERS THEN
11              DBMS_OUTPUT.put_line('WRONG RECORD ' || REG.COL);
12        END;
13     END LOOP;
14  END;
15  /
WRONG RECORD 99/02/2009
PL/SQL procedure successfully completedRegards,