ÁÐתÐеÄOracle SQLʵÀý

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
             &nb