Passing variable from sql to shell script

Question

Usually we can pass arguments from shell script to the sql that us called inside the shell script. But I also want to do the reverse. I have the location of my backup path in a table. I want to run the rman script (shell), read this parameter from the table and use this to construct the "format" path in rman. Anyone has any ideas about this. Thanks.

Answer 1

To achieve getting the modified value from the table everytime the job runs, I encapsulated this in another job.
BEGIN
DBMS_SCHEDULER.CREATE_JOB(
JOB_NAME           => 'TEST_LOGS_MAIN',
JOB_TYPE             => 'PLSQL_BLOCK',
JOB_ACTION          => 'declare
v_aname varchar2(32);
begin
select aname into v_aname from attr where attrid = 3;
DBMS_SCHEDULER.CREATE_JOB(
JOB_NAME        => ''TEST_LOGS'',
JOB_TYPE        => ''EXECUTABLE'',
JOB_ACTION      => ''/opt/sql/testy.sh'',
number_of_arguments => 1,
COMMENTS        => ''TEST'');
dbms_scheduler.set_job_argument_value(''TEST_LOGS'',1,v_aname);
dbms_scheduler.enable(''TEST_LOGS'');
end;',
REPEAT_INTERVAL => 'FREQ=MINUTELY',
ENABLED           => TRUE);
END;
/