Formatting of query returning multiple xml elements using xmlattributes

Question

Hi, i've been tasked with producing output, based on an XSD, with repeating elements defined using distinct attributes related to the element. I've managed to get this working, but would like to make the solutions code more elegant than it is at the moment, and was wondering if anyone may be able to give me a hand with this?
Firstly, database details
Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
PL/SQL Release 11.2.0.2.0 - Production
"CORE     11.2.0.2.0     Production"
TNS for IBM/AIX RISC System/6000: Version 11.2.0.2.0 - Production
NLSRTL Version 11.2.0.2.0 - ProductionAn example of the output i'm expecting is as follows
<financials>
          <depositDate INVITE_PACK="Current">2011-12-01</depositDate>
          <depositDate INVITE_PACK="Alternate">2011-12-01</depositDate>
          <deposit INVITE_PACK="Current">19.88</deposit>
          <deposit INVITE_PACK="Alternate">20.65</deposit>
          <basicPremium INVITE_PACK="Current">198.76</basicPremium>
          <basicPremium INVITE_PACK="Alternate">206.49</basicPremium>
</financials>This data is held in a relational database table and i'm currently gernerating the data from this relational table using something similar to the following:
SELECT xmlagg
       (xmlelement("financials",
                   (select xmlagg(xmlelement("depositDate",
                                             xmlattributes(fi1.quote),
                                             fi1.DEPOSIT_DATE
                                             )) as "depDt_det"
                      FROM (select distinct f1.fulfilment_queue_key,
                                            f1.fq_policy,
                                            f1.quote,
                                            f1.deposit_date
                              from staging.fulfilment_xml_finance_inv1 f1) fi1
                     WHERE fi1.fulfilment_queue_key = fi.fulfilment_queue_key),
                   (select xmlagg(xmlelement("deposit",
                                             xmlattributes(fi1.quote),
                                             fi1.PPD_DEPOSIT)) as "dep_det"
                      FROM (select distinct f1.fulfilment_queue_key,
                                            f1.fq_policy,
                                            f1.quote,
                                            f1.PPD_DEPOSIT
                              from staging.fulfilment_xml_finance_inv1 f1) fi1
                     WHERE fi1.fulfilment_queue_key = fi.fulfilment_queue_key),
                   (select xmlagg(xmlelement("basicPremium",
                                             xmlattributes(fi1.quote),
                                             fi1.BASIC_PREM)) as "bprem_det"
                      FROM (select distinct f1.fulfilment_queue_key,
                                            f1.fq_policy,
                                            f1.quote,
                                            f1.basic_prem
                              from staging.fulfilment_xml_finance_inv1 f1) fi1
                     WHERE fi1.fulfilment_queue_key = fi.fulfilment_queue_key)                                                                                                                                                                                                           
  FROM staging.fulfilment_xml_finance_inv1 fi
  WHERE fi.fulfilment_queue_key = 2861
   AND rownum = 1As can be seen, i'm replicating a number of calls to the fulfilment_xml_finance_inv1 table. I was wondering if there is a way to do the above in a more succinct, supportable and readable fashion? I have a tried a number of differnt methods to do this, but can't seem to get it to work for me. Any ideas would be greatly appreciated.
Thanks.

Answer 1

Hi again,
No problem, create table statement
-- Create table
create table FULFILMENT_XML_FINANCE_INV1
  fulfilment_queue_key          NUMBER(22),
  fq_policy                     VARCHAR2(50),
  riskversion                   NUMBER(28,7),
  basic_prem                    NUMBER(10,2),
  os_balance                    NUMBER(10,2),
  ppd_deposit                   NUMBER(10,2),
  ppd_plan_charge               NUMBER(10,2),
  ppd_charge_for_interest       NUMBER(10,2),
  ppd_apr_perc                  NUMBER(10,2),
  ppd_interest                  NUMBER(22,6),
  inst_freq                     VARCHAR2(1),
  deposit_date                  DATE,
  adj_premium                   NUMBER(19,2),
  order1                        NUMBER(38),
  amountdue                     NUMBER(28,7),
  collection_date               DATE,
  paymentduedate                DATE,
  scharges                      NUMBER(19,2),
  ppd_plan_collection_reference VARCHAR2(20),
  reapply_date                  DATE,
  reapply_amount                NUMBER(19,2),
  last_inst_freq                VARCHAR2(1),
  quote                         VARCHAR2(10)
);example inserts
insert into fulfilment_xml_finance_inv1
   (fulfilment_queue_key,
fq_policy,
riskversion,
basic_prem,
os_balance,
ppd_deposit,
ppd_plan_charge,
ppd_charge_for_interest,
ppd_apr_perc,
ppd_interest,
inst_freq,
deposit_date,
adj_premium,
order1,
amountdue,
collection_date,
paymentduedate,
scharges,
ppd_plan_collection_reference,
reapply_date,
reapply_amount,
last_inst_freq,
quote)
values
(2861,
'TEST1234',
3,
198.76,
123.45,
19.88,
0,
99.99,
99.99,
55.55,
'A',
to_date('01/12/2011','dd/mm/yyyy'),
null,
NULL,
NULL,
NULL,
null,
0.00,
'N/A',
NULL,
NULL,
'A',
'Current')
insert into fulfilment_xml_finance_inv1
   (fulfilment_queue_key,
fq_policy,
riskversion,
basic_prem,
os_balance,
ppd_deposit,
ppd_plan_charge,
ppd_charge_for_interest,
ppd_apr_perc,
ppd_interest,
inst_freq,
deposit_date,
adj_premium,
order1,
amountdue,
collection_date,
paymentduedate,
scharges,
ppd_plan_collection_reference,
reapply_date,
reapply_amount,
last_inst_freq,
quote)
values
(2861,
'TEST1234',
3,
206.49,
123.45,
20.65,
0,
99.99,
99.99,
55.55,
'A',
to_date('01/12/2011','dd/mm/yyyy'),
null,
NULL,
NULL,
NULL,
null,
0.00,
'N/A',
NULL,
NULL,
'A',
'Alternate') Hope this is what you were after, please let me know if you need anything else.
Thanks again.