Help need urgently for oracle cursors in k shell scripting

Shell Programming and Scripting
1

Hi,

My Oracle Stored procedure returns sys_refcursor to shell script. I have to iterate through it in script and use those retrieved values further in my script. I am using K Shell Scrpting.

Stored Procedure is:

create or replace
PROCEDURE p_test(job_id IN VARCHAR2, c1 OUT SYS_REFCURSOR)
AS

job_nm PROXY_JOB_DESCRIPTIONS.JOB_NAME% TYPE;
job_ds PROXY_JOB_DESCRIPTIONS.JOB_DESC% TYPE;

BEGIN

OPEN c1 FOR SELECT JOB_NAME, JOB_DESC FROM proxy_job_descriptions WHERE job_id = job_id;

EXCEPTION
WHEN NO_DATA_FOUND THEN
dbms_output.put_line('* No records retrived *');

END p_test;

Script:

#!/bin/ksh

SPOOL_FILE=/usr/home/dfusr/backup/log/spool.txt

sqlplus -S $DB 1>>log/test.log 2>>log/test.err << EOF
spool $SPOOL_FILE
SET DEFINE OFF;
SET SERVEROUT ON;

Declare
	ln_desc REFCURSOR;
	jbname varchar2(128);
	jbdesc varchar2(128);
BEGIN
	P_TEST ('1', ln_desc);

OPEN ln_desc;
LOOP
FETCH ln_desc INTO jbname, jbdesc;
EXIT WHEN ln_desc%NOTFOUND;
END LOOP;
CLOSE ln_desc;
END;
/
EOF

Please help me how can i use cursor in script as i am new to unix......

Thanks-
Raj

2

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3

Hi.

I tried for ages, but couldn't get your example to work - especially regarding the ref cursor.

Assuming you're not asking about cursors, and that part is working for you, I would change the select statement to output the data in delimeted format. i.e.

Name 1|Desc 1
Name 2|Desc 2
Name 3|Desc 3

The script that you posted doesn't output the data (i.e. with dbms_output), so you need to add that to your loop, otherwise nothing will be spooled.

Then you can read the spool file and process the data with something like...

while read LINE; do
  [ -z "$LINE" ] && break
  NAME=$(echo $LINE | cut -d"|" -f 1)
  DESC=$(echo $LINE | cut -d"|" -f 2)
  echo "Name is $NAME     Desc is $DESC"
done < spool.txt
 
Output:
Name is Name 1     Desc is Desc 1
Name is Name 2     Desc is Desc 2
Name is Name 3     Desc is Desc 3
4

REFCURSOR is a pointer to an open cursor in your current process.
You did nothing to open the cursor. You need to invoke the stored procedure, then "aim" your refcursor at the return value of the SP.

p_test(42, ln_desc);  -- I made up a job id
5

You mean
ln_desc:=P_TEST ('1', ln_desc);

I tried the same but not worked.

Can you please post the code or any link if any.

---------- Post updated 08-11-09 at 08:32 AM ---------- Previous update was 08-10-09 at 06:33 PM ----------

Hi ,

My question is on cursors only. your are write that we can read from the file. But first question arises how to write the records in the cursor to the file in the k shell script.

Please post me the code if any or any link.