Display same value of a column once in multiple rows

Question

Dear All:
I have a table id, values with following data
ID VALUES
===============
EG001 5888314
EG001 5888315
EG001 5888316
EG002 5888317
EG002 5888318
I want to display a query to display the result as follows:
ID VALUES
===============
EG001 5888314
5888315
5888316
EG002 5888317
5888318
Regards,
Hassan

Answer 1

Hi,
Without subquery.
Regards Salim.
/* Formatted on 2009/06/05 09:49 (Formatter Plus v4.8.8) */
WITH test_tab AS
     (SELECT 'EG001' rec_id, 5888314 VALUE
        FROM DUAL
      UNION ALL
      SELECT 'EG001', 5888315
        FROM DUAL
      UNION ALL
      SELECT 'EG001', 5888316
        FROM DUAL
      UNION ALL
      SELECT 'EG002', 5888317
        FROM DUAL
      UNION ALL
      SELECT 'EG002', 5888318
        FROM DUAL)
-- end test data
SELECT CASE
          WHEN MIN (VALUE) OVER (PARTITION BY rec_id) = VALUE
             THEN rec_id
          ELSE TO_CHAR (VALUE)
       END rec_id,
       CASE
          WHEN MIN (VALUE) OVER (PARTITION BY rec_id) = VALUE
             THEN VALUE
          ELSE NULL
       END VALUE
  FROM test_tab;
REC_ID                                        VALUE
EG001                                       5888314
5888315                                           
5888316                                           
EG002                                       5888317
5888318                                           
5 rows selected.