ORA-00917-缺少逗号

Question

SELECT 
    XMLELEMENT (
        DECODE ('RF', 'RF', 'Credit', 'Sale'), xmlattributes ('01234567' AS "id")
    ) AS Order
FROM 
    DUAL

当我运行上述查询时，我收到ORA-00917-missing coma错误。

Answer 1

不确定您要执行的操作，但如果您需要动态元素名称，则需要使用EVALNAME

SELECT 
    XMLELEMENT (
          evalname(       
        DECODE ('RF', 'RF', 'Credit', 'Sale')),
      xmlattributes ('01234567' AS "id")
    ).getstringval() AS "Order"
FROM 
    DUAL

Here is a sqlfiddle demo