列轉行的Oracle SQL實例

SELECT
       T.ELES_FLG,
       T.SENDUNIT_NAME,
       T.ROM_SEQNO,
       LTRIM(MAX(SYS_CONNECT_BY_PATH(T.MODEL,  ',')), ',') MODEL
  FROM (SELECT
               ELES_FLG,
               SENDUNIT_NAME,
               ROM_SEQNO,
               MODEL,
               MIN(MODEL) OVER(PARTITION BY  ELES_FLG, SENDUNIT_NAME, ROM_SEQNO) MODEL_MIN,
               (ROW_NUMBER() OVER(ORDER BY
                                  ELES_FLG,
                                  SENDUNIT_NAME,
                                  ROM_SEQNO,
                                  MODEL)) +
               (DENSE_RANK() OVER(ORDER BY
                                  ELES_FLG,
                                  SENDUNIT_NAME,
                                  ROM_SEQNO)) NUMID
          FROM P_M32003_SENDUNIT_MODEL) T
         
 START WITH MODEL = MODEL_MIN
CONNECT BY NUMID - 1 = PRIOR NUMID
 GROUP BY  T.ELES_FLG, T.SENDUNIT_NAME, T.ROM_SEQNO