column?ambiguously?defined

ORA-00918:?column?ambiguously?defined

java.sql.SQLException:?ORA-00918:?column?ambiguously?defined
ORA-00918:?column?ambiguously?defined。中文名稱：未明確定義的列！

可能定義了兩個相同的列

你找找你后面的t里面是不是有兩個相同的列,我也是這個問題,就是多了一個相同的列的查詢,所以sb了..

我出錯的sql語句是

select?*

??from?(select?rownum?as?seq,?t.*

??????????from?(select?item_code,

???????????????????????item_abv,

???????????????????????order_no,

???????????????????????unit_name,

???????????????????????assist_unit_name,

???????????????????????mb_qty,

???????????????????????inspection_qty,

???????????????????????mi_qty,

???????????????????????assist_mi_qty,

???????????????????????mo_qty,

???????????????????????assist_mo_qty,

???????????????????????on_hand_qty,

???????????????????????assist_qty,

???????????????????????ma_qty,

???????????????????????assist_ma_qty

???????????????????????assist_ma_qty?--?這一行出錯了,列寫重復(fù)了(刪掉?運行,就ok啦)

????????? ??????????????--?assist_ma_qty as?assist_ma_qty2 -- 不想刪掉就這樣寫

??????????????????from?inv_book_master)?t

?????????where?rownum?<=?10)

?where?seq?>?0

或者你參考 我的另一個帖子，教你怎么換一種方式rownum?分頁， http://hi.baidu.com/ae6623/item/aaa12115f2e4ca09e75c3635

oracle 報錯 column ambiguously defined