如何MySQL的代碼轉換到Oracle SQL

Question

我如何改變MySQL的代碼中的Oracle SQL11克工作

SELECT a.boxid, 
GROUP_CONCAT(CONCAT(b.quantity, \' x \', c.name) SEPARATOR \', \') Items 
FROM box a 
INNER JOIN item_line b ON a.boxid = b.boxid 
INNER JOIN items c ON b.itemid = c.itemid 

此查詢的輸出如下所示：

boxid  items 
1   2 x ball,4 x bat 
2   ball 
3   3 x cap,2 x ball,bat 
4   2 x ball 

感謝您的任何答案。

Answer 1

使用LISTAGG()

SELECT boxid, 
     LISTAGG(quantity || ' x ' || name, ',') 
      WITHIN GROUP (ORDER BY boxid) AS items 
FROM tableName 
GROUP BY boxid 

• SQLFiddle Demo
• SQLFiddle Demo (if you want 1 x to suppress)
• Oracle LISTAGG()

Answer 2

你可以嘗試Oracle的SQL Developer Migration（這是一個免費的產品）。該文檔稱，這將有助於遷移的Microsoft Access，微軟SQL Server，MySQL發和Sybase到Oracle：

http://www.oracle.com/technology/tech/migration//workbench/index%5Fsqldev%5Fomwb.html