PLSQL NOTE--------utl_file 的使用

 1 -----rlwrap sqlplus sys/111111@localhost:1522/xe as sysdba
 2 -----以sysdba 身份登陆
 3 CREATE OR REPLACE DIRECTORY test_dir as ‘/sandbox/plsql_test‘;
 4 -----创建文件夹
 5 -----the /sandbox/plsql_test need command $chmod 777 /sandbox/plsql_test
 6 -----给写入权限（linux 系统）
 7 grant read,write on directory test_dir to &username;
 8 GRANT EXECUTE ON utl_file TO &username; 
 9 ---给oracle 用户文件操作权限
10 select * from ALL_DIRECTORIES;
11 ----查看oralce所有文件夹
12 
13 ------测试----------
14 declare
15     f utl_file.file_type;
16 begin
17     f := utl_file.fopen( ‘TEST_DIR‘, ‘testfile.txt‘, ‘w‘); -- w is the write mode
18   utl_file.put_line(f, ‘hello world‘);
19   utl_file.put(f, ‘ ! ‘ );
20   utl_file.fclose(f);
21 end;
22 /
23 show errors;