Complete logical backup separte of every schema

Question

i want to take complete logical backup of all the schemas running on database separtely by a script which then replace the last 2 days backupp
any script in this regard
thanks a lot

Answer 1

@echo off
CLS
REM ********************************
SET V_USER=riyadh
SET V_PASSWORD=riyadh
SET V_DB=vis
SET V_DMP_PATH=D:\dump\
REM ********************************
ECHO.
SET EXP_PATH=D:\oracle\visdb\9.2.0\bin\
SET MONTH=%DATE:~4,2%
SET YEAR=%DATE:~10,4%
SET DATED=%DATE:~-7,2%
ECHO ------------------------------------------------
ECHO CONNECT AS : %V_USER%/%V_PASSWORD%@%V_DB%
ECHO Backup on : %DATED%/%MONTH%/%YEAR% (DD/MM/YYYY)
ECHO SAVE AS : %V_DMP_PATH%%V_USER%_%DATED%%MONTH%%YEAR%.dmp
ECHO ------------------------------------------------
TITLE BACKUP ...%V_USER%_%DATED%%MONTH%%YEAR%
echo.
%EXP_PATH%EXP.exe %V_USER%/%V_PASSWORD%@%V_DB% file=%V_DMP_PATH%%V_USER%_%DATED%%MONTH%%YEAR%.dmp log=%V_DMP_PATH%%V_USER%_%DATED%%MONTH%%YEAR%.log
i am using this script for daily backup but i want to replace then the first dump after 3 days but the date should be of today meanz i want to replace the dump of 3 days earlier suppose i take backup on 27 so when i take dump on 31 again it replace the dump of 27 but the dump file name should be 31 so i can understand easily this is dump of 31