Oracle query to XML using SSIS - sql

Question

I inherited a query that is used for extract information from Oracle Database and they want now to create a XML file using SSIS. So far I read several forum and blogs and I found a way to connect it but not sure how I should use this query. I found that Oracle use XMLElement to create the XML but I got
Unsupported Oracle data type USERDEFINED encountered. (System.Data.OracleClient)
when I tried to run the query. I will provide part of the original query, because it is quite large code
SELECT
--SCHED_STASK.SCHED_ID,
ACFT_INV.INV_NO_SDESC AS "Aircraft",
SCHED_STASK.BARCODE_SDESC AS "Barcode",
EVT_EVENT.ACTUAL_START_DT AS "Act_Start_Dt",
EVT_EVENT.EVENT_DT AS "Act_End_Dt",
TASK_TASK.TASK_ORIGINATOR_CD AS "Originator",
SCHED_STASK.TASK_CLASS_CD AS "Class",
SCHED_STASK.TASK_SUBCLASS_CD AS "SubClass",
EVT_EVENT.EVENT_STATUS_CD AS "Status",
CASE
WHEN TASK_TASK.TASK_CD is null THEN null
WHEN TASK_TASK.TASK_CD is not null THEN TASK_TASK.TASK_CD||' ('||TASK_TASK.TASK_NAME||')'
END AS "Task Defn",
ORG_HR.HR_CD AS "Employee number / ID",
SCHED_WORK_TYPE.WORK_TYPE_CD AS "Worktype",
EVT_STAGE.STAGE_DT AS "Signed Date"
......
and a huge bunch of left joins. then the where clause
So could someone guide me on how to solve this scenario I will more than happy, quite new using Oracle, I am more familiar with MS SQL + SSIS than Oracle + SSIS

Answer 1

If I understand you correctly you want xml output from oracle sql? try this!
with data as(SELECT
'Blériot' AS Aircraft,
1234 AS BARCODE,
DATE '2018-01-01' ACT_START_DT,
DATE '2018-02-01' ACT_END_DT,
'Louis' Originator,
'XI' Class,
'Civil tourer/trainer/military' SubClass,
'Obsolete but cool' Status,
CASE
WHEN 'Rebuild on mass' IS NULL THEN NULL
WHEN 'Rebuild on mass' IS NOT NULL THEN 'Rebuild on mass'||' ('||'Splinters in the sky'||')'
END "Task Defn",
666 AS "Employee number / ID",
'capentry and seamstressing' Worktype,
DATE '2018-02-01' "Signed Date"
from dual)
SELECT XMLELEMENT("Project",
(XMLELEMENT("Aircraft",AIRCRAFT)),
(XMLELEMENT("BARCODE",BARCODE)),
(XMLELEMENT("ACT_START_DT",ACT_START_DT)),
(XMLELEMENT("ACT_END_DT",ACT_END_DT)),
(XMLELEMENT("Originator",Originator)),
(XMLELEMENT("Class",Class)),
(XMLELEMENT("SubClass",SubClass)),
(XMLELEMENT("Status",Status)),
(XMLELEMENT("Task Defn","Task Defn")),
(XMLELEMENT("Employee number / ID","Employee number / ID")),
(XMLELEMENT("Worktype",Worktype)),
(XMLELEMENT("Signed Date","Signed Date"))
)
from data
the result beeing:
<Project>
<Aircraft>Blériot</Aircraft>
<BARCODE>1234</BARCODE>
<ACT_START_DT>2018-01-01</ACT_START_DT>
<ACT_END_DT>2018-02-01</ACT_END_DT>
<Originator>Louis</Originator>
<Class>XI</Class>
<SubClass>Civil tourer/trainer/military</SubClass>
<Status>Obsolete but cool</Status>
<Task Defn>Rebuild on mass (Splinters in the sky)</Task Defn>
<Employee number / ID>666</Employee number / ID>
<Worktype>capentry and seamstressing</Worktype>
<Signed Date>2018-02-01</Signed Date>
</Project>

Answer 2

For This particular case, I decided to use another ssis control that I downloaded, it seems that over here the settings used by the company didnt allow a good interaction between the oracle and the ms ssis.