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Pass parameter from PL/SQL to Unix "as is"

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# 1  
Old 10-13-2010
Pass parameter from PL/SQL to Unix "as is"
Hi,
I need to pass 4 parameters from Oracle Procedure to Unix Shell script..

procedure signature :-
Quote:
PROCEDURE Builder(csvFileName OUT VARCHAR2,pdfFileName OUT VARCHAR2, fileId IN NUMBER, csvresult OUT VARCHAR2,pdfresult OUT VARCHAR2);
UNIX Shell script:
Quote:
BudResult=$(exec_Builder $fileId)
echo $BudResult | read csvfileName pdfFileName csvresult pdfresult
Problem: 1. Suppose pdffile and pdfresult has Null values in Oracle procedures but unix shell will read parameters by spaces so
I am getting wrong parameters values in UNIX script.

Code:
Oracle Procedure result:                   Unix Shell Result
csvfile = ABC.csv                         csvfile = ABC.csv
pdfFile = NULL                            pdfFile = Success
csvresult = Success                       csvresult = 
pdfresult = NULL                          pdfresult =

2. suppose csvresult has value "Userdefined Exception" in oracle procedure but Unix reads it as following
Code:
Oracle Procedure result:                 Unix Shell Result
csvfile = ABC.csv                         csvfile = ABC.csv
pdfFile = XYZ.pdf                         pdfFile = XYZ.pdf
csvresult = Userdefined Exception         csvresult = Userdefined
pdfresult = Success                       pdfresult = Exception Success

In nut shell how to pass parameter "as is" from PL/SQL to UNIX..
Thanks
Sandy
# 2  
Old 10-13-2010
Hi,

Here I can see two options:
1. If you have all the possible output values, you can use some IFs to validate;
2. Change the procedure to not use "NULL" values, but NULL strings instead: NVL(FIELD, 'NULL');

I hope it helps!

Regards.
This User Gave Thanks to felipe.vinturin For This Post:
sandy162
# 3  
Old 10-13-2010
As I understand your description, you have no indication when responded field (or parameter) started and ended.
Thus, answer is simple: make that indication in your procedure responce!
Code:
 #instead of:
sql> select sysdate from dual;
  #use
sql> select 'date='||sysdate from dual

After that in your unix-code check for a parameter.
Probably more common way is to have responce delimitered with some character. Usefull, too.

If you have no way to change the procedure, I understand you have in result of the procedure call just a number of worlds, and, in that case I do not see a way to have your problem resolved. (IMHO it is bad codding of the procedure; hence, GIGO - garbage in, garbage out.)
Last edited by alex_5161; 10-13-2010 at 03:43 PM..
This User Gave Thanks to alex_5161 For This Post:
sandy162
# 4  
Old 10-13-2010
Now I saw one thing!

You don't need to change the procedure, just treat the OUT parameters when you call it, like below:
Code:
CREATE OR REPLACE PROCEDURE PROCTEST(MES OUT VARCHAR2)
IS
BEGIN
    MES := NULL;
END;
/

SET SERVEROUTPUT ON
DECLARE
      MYMES VARCHAR2(100);
BEGIN
    PROCTEST(MYMES);
    DBMS_OUTPUT.PUT_LINE('Test: [' || NVL(MYMES, 'NULL_MESSAGE') || ']');
END;
/

Regards!
# 5  
Old 10-15-2010
i have tried following way but it didi not work...
please let me know wht im doing wrong..

Code:
function
BEGIN
:fileId := '$fileIdIn';
BUILDER(:fileId,:csvfile,:pdfFile,:csvresult,:pdfresult);
END;
/ 
set termout on
SELECT :csvfile || '|' || :pdfFile || '|' || :csvresul || '|' || :pdfresult  FROM dual;
exit
!`

Main section

Code:
oenResult=$(exec_Builder $fileId)  
#echo $oenResult | read csvFile pdfFile csvresult pdfresult 
			
echo oenResult=$oenResult
				
csvFile=`echo $oenResult | cut -d '|' -f 1`
pdfFile=`echo $oenResult | cut -d '|' -f 2`
csvresult=`echo $oenResult | cut -d '|' -f 3`
pdfresult=`echo $oenResult | cut -d '|' -f 4`

thanks
sandy
# 6  
Old 10-15-2010
What was the error?
# 7  
Old 10-15-2010
it worked ..i have used a variable instead of select select statement

Code:
BEGIN
:fileId := '$fileIdIn';
BUILDER(:fileId,:csvfile,:pdfFile,:csvresult,:pdfresult);
:output := :csvfile || '|' || :pdfFile || '|' || :csvresul || '|' || :pdfresult
END;
/ 
set termout on
print output
exit
!`

thanks so much for all your help
sandy
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