Need Assistance to write a procedure for the below requirements!!!

Question

Hi Forum,
Could some body give me a hand in writing an oracle procedure to pull the results as per the below requirement
A JOBNUM is transfered from the first JSP page to second JSP page and based on that JOBNUM I have to write a procedure to populate the second page
I need to pull these feilds from the respective tables
QM_JOB_NUM, QM_JOB_STATUS from QMI which matches the value of the JOBNUM from the first JSPpage
QN_JOB_GPH_FILE, QN_COMMENTS from QNI where QM_JOB_NUM = QN_JOB_NUM
VM_NAME concertnate with VM_SURNAME from VMI where QM_PROFILE = VM_PROFILE
QF_NARRATIVE_1,QF_NARRATIVE_2,QF_NARRATIVE_3( if these feilds has any values in DB then only pull them, if not dont pull them.so, we need to put a IF condition) where QF_JOB_NUM = QM_JOb_NUM
JI_DESC from JII where QM_USER_STATUS = JII_STATUS _CODE
RR_NAME from RRI where QM_REP = RR_REP
and
a case condition to match the QM_JOB_STATUS to the string value ( LIVE, PENDING , CLOSED ) as the QM_JOB_STATUS stores in the database as the numerical values 1,2,3 and while displaying on to the web page I need to match to the correspond string value and display it
if ( QM_JOB_STATUS ) = 1 then print to the webform LIVE
if ( QM_JOB_STATUS ) = 2 then print to the webform PENDING
if ( QM_JOB_STATUS ) = 3 then print to the webform CLOSED
Thanks for your assistance.
Cheers,
Krishna.

Answer 1

First off, you need to turn the requirement into a sql statement. If I followed things correctly, that would be something like:
SELECT qmi.qm_job_num,
       DECODE(qmi.qm_job_status, 1, 'LIVE',
                                 2, 'PENDING',
                                 3, 'CLOSED') qm_job_status,
       qni.qn_job_gph_file,
       qni.qn_comments, vmi.vm_name||' '||vmi.vm_surname name,
       qfi.qf_narrative_1, qfi.qf_narrative_2, qfi.qf_narrative_3,
       jii.ji_desc, rri.rr_name
FROM qmi
   JOIN qni ON qmi.qm_job_num = qni.qn_job_num
   JOIN vmi ON qmi.qm_profile = vmi.vm_profile
   LEFT JOIN qfi ON qmi.qm_job_num = qfi.qf_job_num
   JOIN jii ON qmi.qm_user_status = jii.jii_status_code
   JOIN rri ON qmi.qm_rep = rri.rr_rep
WHERE  qmi.qm_job_num = p_jobnumP_jobnum in the query is the parameter you will pass to your stored proc.
Next, you need to decide how many rows will be returned for a particular job number. If there will be more than one row, then you will probably need to return a ref cursor. If there will be only one row, then you could return either a set of variables, one for each column in the resultset, or a record type with a field for each column.
If you are returning a ref cursor or a record type, then you probably want to build the stored proc as a function, if you are returning multiple variables, then you will need to build it as a procedure.
So, to return a ref cursor, the signature of the function would look something like:
CREATE FUNCTION get_page2 (p_jobnum IN qmi.qm_job_num%TYPE)
   RETURN sys_refcursor ASReturning a record type would be similar except that you would RETURN the record type you defined in the database.
To return several variables in a procedure, the signature would look something like:
CREATE PROCEDURE get_page2 (p_jobnum     IN  qmi.qm_job_num%TYPE,
                            p_status     OUT VARCHAR2,
                            p_gph_file   OUT VARCHAR2,
                            p_comment    OUT VARCHAR2,
                            p_name       OUT VARCHAR2,
                            p_narrative1 OUT VARCHAR2,
                            p_narrative2 OUT VARCHAR2,
                            p_narrative3 OUT VARCHAR2,
                            p_desc       OUT VARCHAR2,
                            p_rrname     OUT VARCHAR2) ASHTH
John