在java类中执行查询时出错

hi am不执行以下查询。它在sql developer中运行良好，但在我的java类中不起作用

    query = new StringBuilder().append("select SUBSTR(attrib,2) as DEF,DECODE(parent_id,null,null,'C'||parent_id) as xyz,'C'||attribute_id as lmn,decode(parent_id,null,'C'||(to_char(attribute_id)),'C'||parent_id||'/'||'C'||attribute_id) as abc from (select ATTRIBUTE_NAME,SYS_CONNECT_BY_PATH(ATTRIBUTE_NAME, '/') as attrib, TREESTRUCT_ATTRIBUTE_NAME,parent_id,attribute_id from MY_TABLE where TREESTRUCT_ATTRIBUTE_NAME = 'xyz' start with attribute_level =1 connect by prior attribute_id = parent_id);").toString();

Statement stmt=con.createStatement();  
System.out.println("After connection");
ResultSet rs =  stmt.executeQuery(query);
System.out.println("After ececute");

---

未执行查询。转到异常块。在我的java类中执行此查询时，我应该做些什么？

您遇到了什么异常..详细说明异常是什么？无论何时提出问题，请思考有人试图帮助您了解哪些信息。在这种情况下，我们真的，真的需要看到异常。请阅读（另外，您为什么要使用

StringBuilder

？您只是在创建它，附加一个字符串，然后调用

toString

。这是一种模糊的书写方式

string query=“select…”；

）我收到ORA-00911：无效字符例外删除查询末尾的分号。

    query = new StringBuilder().append("select SUBSTR(attrib,2) as DEF,DECODE(parent_id,null,null,'C'||parent_id) as xyz,'C'||attribute_id as lmn,decode(parent_id,null,'C'||(to_char(attribute_id)),'C'||parent_id||'/'||'C'||attribute_id) as abc from (select ATTRIBUTE_NAME,SYS_CONNECT_BY_PATH(ATTRIBUTE_NAME, '/') as attrib, TREESTRUCT_ATTRIBUTE_NAME,parent_id,attribute_id from MY_TABLE where TREESTRUCT_ATTRIBUTE_NAME = 'xyz' start with attribute_level =1 connect by prior attribute_id = parent_id);").toString();

Statement stmt=con.createStatement();  
System.out.println("After connection");
ResultSet rs =  stmt.executeQuery(query);
System.out.println("After ececute");