Employee Information with same date

Question

Dear All,
Can any one tell me how to retrieve employees who hires on same date?
Thanks in advance.

Answer 1

/* Formatted on 7/30/2012 1:29:04 PM (QP5 v5.139.911.3011) */
WITH t
        AS (SELECT 'a' empl, TO_DATE ('31-12-2012', 'dd-mm-yyyy') hire
              FROM DUAL
            UNION ALL
            SELECT 'b' empl, TO_DATE ('31-12-2011', 'dd-mm-yyyy') hire
              FROM DUAL
            UNION ALL
            SELECT 'c' empl, TO_DATE ('31-12-2011', 'dd-mm-yyyy') hire
              FROM DUAL
            UNION ALL
            SELECT 'd' empl, TO_DATE ('5-12-2012', 'dd-mm-yyyy') hire
              FROM DUAL)
SELECT *
  FROM t t1, t t2
WHERE t1.hire = t2.hire AND t1.empl != t2.emplc     12/31/2011     b     12/31/2011
b     12/31/2011     c     12/31/2011