How to copy a datafile from ASM to a file system not using RMAN

Posted 2022-09-02 tianlesoftware

      

       How to move a datafile from a file system to ASM

      

       How to move a datafile from ASM to the file system
       ​​​http://www.cndba.cn/Dave/article/817​​

步骤如下：

1.  Log onto the target database that is local to the ASM instance as the sys user.

2.  create source directory within the target database.
SQL> create or replace directory SOURCE_DIR as +DGROUP1/V10ASM/datafile/;
Directory created.

(In this example +DGROUP1/V10ASM/datafile/ is the source directory where the datafile is located and where you wish to copy the file from.)

3.  create destination directory within database.

SQL> create or replace directory ORACLE_DEST as /restore;
Directory created.

(In this example /restore is the destination directory where the datafile is to be copied to.)

4.  Execute the dbms_file_transfer package.

SQL>
BEGIN
dbms_file_transfer.copy_file(source_directory_object =>
SOURCE_DIR, source_file_name => system.272.617284341,
destination_directory_object => ORACLE_DEST,
destination_file_name => system.dbf);
END;
/

PL/SQL procedure successfully completed.

(In this example system.272.617284341 is the file I wish to transfer and the destination file is system.dbf)

The file has now been copied to the /restore directory.