Tablespace and datafile hot backup

Question

Hi,
I wanted to if there is a command to copy a datafile using sqlplus command. I making a script that will backup the database while its online.I made a script for the alter tablespace begin backup but I wanted to know how to copy the datafiles without using the OS command,instead I wanted to use a sql commands. Is there any script or procedure to do this one.
thanks
Best Regards,
Antok

Answer 1

RMAN is the best utility to do the backup and recover activities. It take care copy and paste itself. Bellow given script is also usefull for hot backup
spool hotbackup_PROD3.sql;
set feedback off;
set verify off;
set pagesize 2500
set linesize 132
set serveroutput on size 50000;
declare
cursor tablespace is select tablespace_name from dba_tablespaces where tablespace_name
in('RBS1',
'STORAGE',
'SYSADM_IDX2',
'SYSADM_IDX3',
'SYSADM_IDX4',
'SYSTEM');
cursor datafile(tsname varchar2 ) is select file_name from dba_data_files
where tablespace_name = tsname;
begin
dbms_output.put_line('spool hotbackup_PRODc.log;');
dbms_output.put_line('alter system switch logfile;');
dbms_output.put_line('select ''log''||sequence#,sysdate from v$log where status = ''CURRENT'';
for tsname in tablespace
loop
dbms_output.put_line('alter tablespace '||tsname.tablespace_name||' begin backup;');
dbms_output.put_line('prompt Starting Backup for '||tsname.tablespace_name||' Tablespace')
for dname in datafile(tsname.tablespace_name)
loop
dbms_output.put_line('prompt Copying File '||dname.file_name||'.....');
dbms_output.put_line('!cp '||dname.file_name||' /backup2/hotbak'||dname.file_name);
end loop;
dbms_output.put_line('alter tablespace '||tsname.tablespace_name||' end backup;');
dbms_output.put_line('prompt Finished backing up '||tsname.tablespace_name||' Tablespace')
dbms_output.put_line('alter system switch logfile;');
end loop;
dbms_output.put_line('spool off;');
dbms_output.put_line('!mailx -s "KL_PROD521_HOTBACKUP1" [email protected] < /prod1/HOTBKUP/hotbackup_PRODc.log');
dbms_output.put_line('exit');
end;
spool off;
@hotbackup_PROD3.sql
exit;