Oracle基于Xml文件，创建访问视图

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SQL> create view my_emp as

2 select to_number(extractvalue(value(r), '/ROW/EMPNO')) empno,

3 cast(extractvalue(value(r), '/ROW/ENAME') as varchar2(10)) ename,

4 to_number(extractvalue(value(r), '/ROW/DEPTNO')) deptno,

5 cast(extractvalue(value(r), '/ROW/JOB') as varchar2(9)) job,

6 to_number(extractvalue(value(r), '/ROW/SAL')) sal,

7 to_date(extractvalue(value(r), '/ROW/HIREDATE'), 'MM/DD/YYYY HH24:MI:SS') hiredate

8 from ( select xmltype(bfilename('MY_DIR', 'x.txt'), NLS_CHARSET_ID('WE8MSWIN1252')) val

9 from dual ) x,

10 table(xmlsequence(extract(x.val, '/ROWSET/ROW'))) r

11 /
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