Data export through sql

Question

all experts
i whant do backup through sql such as:
SQL > host exp.exe userid=system full= y file=d:\backup\sysdate||'.bk'
how i can do this
thanks in advance

Answer 1

Firstly, you can't run export like that. Secondly, export is a logical backup not a "real" backup.
For Windows, fill in the blanks (at least work it out instead of getting it completely handed to you) -
Problem with this method is having to store the password in the file so be careful.
>>>>>>>>>>>>>>>>>>>>>>>
Batch file -
<<<<<<<<<<<<<<<<<<<<<<<
SET ORACLE_SID=<ORA_SID>
SET ORACLE_HOME=<ORA_HOME>
REM backup controlfile to trace and generate the exp.parfile
sqlplus /NOLOG @<some_path>\backupctlfiles.sql %ORACLE_SID%
REM run an export using the generated filename in the previous step
exp parfile=<some_path>\exp.parfile
<<<<<<<<<<<<<<<<<<
backupctlfiles.sql file -
>>>>>>>>>>>>>>>>>>
define dbpassw = '<export user password>’
connect <username>/&dbpassw
alter database backup controlfile to trace;
set feedback off trimspool on trimout on pages 0 verify off
spool <some_path>\exp.parfile
select 'full=y ' || chr(10) ||
'recordlength=65535' || chr(10) ||
'direct=y '|| chr(10) ||
'file=<export_file_path>\&1\export_full.&1..'||to_char(sysdate,'YYYYMMDDHH24MMSS')||'.dmp'||chr(10) ||
'log=<export_file_path>\&1\export_full.&1..'||to_char(sysdate,'YYYYMMDDHH24MMSS')||'.log'||chr(10) ||
'consistent=y'|| chr(10)||
'userid=<username>/&dbpassw'
from dual;
spool off
exit;