1
我有這個疑問反相列和行
SELECT
PA.PK, PA.PACKAGE_NAME, ATTR.ENGLISH_NAME ATTRIBUTES,
PA.VALUE, ATTR_LIST.ENGLISH_NAME ATTRIBUTES_LIST
FROM
POSTS_ATTRIBUTES PA
INNER JOIN
POSTS P ON PA.POSTS = P.PK
LEFT OUTER JOIN
ATTRIBUTES ATTR ON PA.ATTRIBUTES = ATTR.PK
LEFT OUTER JOIN
ATTRIBUTES_LIST ATTR_LIST ON PA.ATTRIBUTES_LIST = ATTR_LIST.PK
WHERE
P.FIELDS = 83;
其中給出這樣
PK | PACKAGE_NAME | ATTRIBUTES | VALUE | ATTRIBUTES_LIST
------------------------------------------------------------------
211| CERAMICS | RAW MATERIALS | (null) | CEMENT
212| CERAMICS | PRODUCTION OPERATIONS | (null) | PRESSING
213| CERAMICS | OPERATIONAL SERVICES | (null) | FORK LIFTS RENTAL
214| CERAMICS | FINISHED PRODUCTS | (null) | FLOOR CERAMICS
輸出有什麼辦法通過查詢反轉行和列,使其看起來像
PACKAGE_NAME | RAW MATERIALS | PRODUCTION OPERATIONS | OPERATIONAL SERVICES | FINISHED PRODUCTS
---------------------------------------------------------------------------------------------------
CERAMICS | CEMENT | PRESSING | FORK LIFTS RENTAL | FLOOR CERAMICS
谷歌「旋轉」 - 這就是這個操作被稱爲。有很多關於如何在Oracle中完成的文章。文檔在這裏:http://www.oracle-base.com/articles/11g/pivot-and-unpivot-operators-11gr1.php – Jasmine 2014-09-26 19:43:18
讚賞:) @Jasmine – Yusuf 2014-09-26 19:53:02