使用脚本导出表

Question

我接受过程中用户的表名和导出类型，并在过程中调用脚本。该脚本将接受表名作为参数。

------ SQL SCRIPT -----     编辑csvfilename

     set heading off
spool myfile.csv
select * from &1;
set colsep ','
spool off;

-----存储过程---------

SQL> CREATE OR REPLACE PROCEDURE Export_Table
  2  (
  3     tbl_nme IN varchar2,
  4          export_type IN varchar2
  5  )
  6  AS
  7  BEGIN
  8  IF export_type = 'csv' THEN
  9  EXECUTE IMMEDIATE '@csvfilename.sql tbl_name';
 10  END IF;
 11  END Export_Table;
 12   /

Procedure created.
 /

------ ---- ERROR

SQL> EXECUTE Export_Table('Mail','csv');
BEGIN Export_Table('Mail','csv'); END;

ERROR at line 1:
ORA-00900: invalid SQL statement
ORA-06512: at "TESTADMIN.EXPORT_TABLE", line 9
ORA-06512: at line 1

任何帮助都将不胜感激。