Oracle SQL 过程中的标识符无效答案

【问题标题】：Invalid identifier in Oracle SQL procedureOracle SQL 过程中的标识符无效
【发布时间】：2012-03-23 11:16:12
【问题描述】：

我收到错误（8,3）：PL/SQL：SQL 语句被忽略和错误（8,10）：PL/SQL：ORA-00904：“XMLELEMENT”：以下过程中的标识符无效：

    CREATE OR REPLACE PROCEDURE GETXMLTREE
    (
      p_ESTABELECIMENTOID IN NUMBER  
    , MYXML OUT VARCHAR2  
    )
    AS
    BEGIN
    SELECT XMLELEMENT --line 8
    into MYXML
        ("root",
          (select dbms_xmlgen.getxmltype 
            (dbms_xmlgen.newcontextfromhierarchy
              ('SELECT level,
                XMLElement("item",XMLAttributes(osusr_kfa_estabele.id as "id"),
                  XMLElement("content", XMLElement("name", nomecompleto)))          
                  from osusr_kfa_estabele
                  start with osusr_kfa_estabele.id = p_ESTABELECIMENTOID 
                  connect by nocycle prior osusr_kfa_estabele.id = osusr_kfa_estabele.estabelecimetnopaiid' ))
          from dual))
    from dual;

    END GETXMLTREE;

关于为什么会发生这种情况的任何线索？谢谢

【问题讨论】：

DUAL 中没有定义 XMLELEMENT 字段。
好的...那么我该如何绕过这个事实呢？

标签： oracle procedure

【解决方案1】：

你的 INTO 放错地方了。试试：

SELECT XMLELEMENT --line 8
        ("root",
          (select dbms_xmlgen.getxmltype 
            (dbms_xmlgen.newcontextfromhierarchy
              ('SELECT level,
                XMLElement("item",XMLAttributes(osusr_kfa_estabele.id as "id"),
                  XMLElement("content", XMLElement("name", nomecompleto)))          
                  from osusr_kfa_estabele
                  start with osusr_kfa_estabele.id = p_ESTABELECIMENTOID 
                  connect by nocycle prior osusr_kfa_estabele.id = osusr_kfa_estabele.estabelecimetnopaiid' ))
          from dual))
    into MYXML
    from dual;

【讨论】：