分組在甲骨文忽略NULL

Question

嗨 我有數據，上表中，我想將它們組到一行忽略NULL值，任何幫助非常感謝，

Answer 1

使用滯後和分區可以解決我的要求

SELECT FUND_CLASS_ID, 

     NVL(SUB_NOTICE_DAYS  , LAG (SUB_NOTICE_DAYS  , 1) OVER (PARTITION BY LFC.ID ORDER BY SUB_NOTICE_DAYS  NULLS LAST)) SUB_NOTICE_DAYS  , 
     NVL(SUB_NOTICE_TYPE_OF_DAYS_ID    , LAG (SUB_NOTICE_TYPE_OF_DAYS_ID    , 1) OVER (PARTITION BY LFC.ID ORDER BY SUB_NOTICE_TYPE_OF_DAYS_ID    NULLS LAST)) SUB_NOTICE_TYPE_OF_DAYS_ID 
    FROM CLASS 

Answer 2

你可以試試這個查詢時，它會工作

select max(classid), 
    classname, 
    max(frequency), 
    max(notice), 
    max(typeofdays), 
    max(rnotice), 
    max(classpercent) 
    from <table_name> 
    group by classname;