Problem in displaying row vale as column name

Question

Hello Experts,
Please help me,its very urgent....
i want to dispaly a column value as a column name.
i have two column into selete statement and i want to dispaly one column value as a column name and other column value as a single row.
My query is :
SELECT MAX(DECODE (NAME,'virtualDeviceId',VALUE))vdid ,
MAX(DECODE (NAME,'virtualDeviceType',VALUE)) vdevtype,
MAX(DECODE (NAME,'domainName',VALUE)) vdevtype1,
MAX(DECODE (NAME,'sCTPPortSip',VALUE)) vdevtype2,
MAX(DECODE (NAME,'signallingIpAddress',VALUE)) vdevtype,
MAX(DECODE (NAME,'signallingNetworkMask',VALUE)) vdevtype,
MAX(DECODE (NAME,'uDPPort',VALUE)) vdevtype,
MAX(DECODE (NAME,'uDPPortEnum',VALUE)) vdevtype,
MAX(DECODE (NAME,'sCTPPort',VALUE)) vdevtype,
MAX(DECODE (NAME,'sCTPPortM3UA',VALUE)) vdevtype FROM(          
SELECT extractvalue(VALUE(l),'/S109:trafficParameters/S109:name'
, 'xmlns="http://itprogrammes.intra.bt.com/pdb/capabilities/ManageDaaliResource/2005/11/16" xmlns:header="http://wsi.nat.bt.com/2005/06/StandardHeader/" xmlns:S97="http://ccm.intra.bt.com/2005/11/16/LIB/Info/CCM/AnalysisModel/Services" xmlns:S109="http://ccm.intra.bt.com/2005/11/16/LIB/Info/MTOSI"') NAME,
     extractvalue(VALUE(l),'/S109:trafficParameters/S109:value'
, 'xmlns="http://itprogrammes.intra.bt.com/pdb/capabilities/ManageDaaliResource/2005/11/16" xmlns:header="http://wsi.nat.bt.com/2005/06/StandardHeader/" xmlns:S97="http://ccm.intra.bt.com/2005/11/16/LIB/Info/CCM/AnalysisModel/Services" xmlns:S109="http://ccm.intra.bt.com/2005/11/16/LIB/Info/MTOSI"') VALUE
     FROM INTERFACE_MESSAGE_DESTINATION imd ,TABLE(xmlsequence(EXTRACT(XMLTYPE(imd.remote_request),'/activateConnection_Payload/jobBody/subnetworkConnection/S109:aEndTerminationPoint/S109:managedElement/S109:physicalTerminationPoint/S109:connectionTerminationPoint/S109:trafficDescriptor/*'
, 'xmlns="http://itprogrammes.intra.bt.com/pdb/capabilities/ManageDaaliResource/2005/11/16" xmlns:header="http://wsi.nat.bt.com/2005/06/StandardHeader/" xmlns:S97="http://ccm.intra.bt.com/2005/11/16/LIB/Info/CCM/AnalysisModel/Services" xmlns:S109="http://ccm.intra.bt.com/2005/11/16/LIB/Info/MTOSI"'))) l
WHERE message_id ='NIAS/0000041608') GROUP BY VALUE ;
output is :
Col1 Col2 col3 col4 col5 col
1.'1001105'          '1001105'                                   
2. 'MGC'                                        
3.'value' 'value' 'value'
output display : MGC in Col2 and in row 2, 'values' are in col4 and col5 and in row 3.
I want all values in a single row.
Please help me
Surender Rana

Answer 1

It is ugly to force multiple rows into a single row. But it can be done and can be done dynamically as the following approach shows.
SQL> create or replace type TStrings as table of varchar2(4000);
2 /
Type created.
SQL>
SQL> create or replace function ForceColumns( cur SYS_REFCURSOR ) return TStrings is
2 setCols TStrings;
3 setResults TSTrings;
4 begin
5 setResults := new TStrings();
6 loop
7 fetch cur into setCols;
8 exit when cur%NOTFOUND;
9
10 if setCols.Count > 0 then
11 setResults.Extend( setCols.Count );
12 for i in 1..setCols.Count
13 loop
14 setResults( setResults.Count-i+1 ) := setCols(i);
15 end loop;
16 end if;
17 end loop;
18
19 return(setResults);
20 end;
21 /
Function created.
SQL>
SQL> select
2 ForceColumns(
3 CURSOR(
4 select TStrings(object_id,object_name,object_type) from user_objects where rownum <= 5
5 )
6 ) as RESULT_SET
7 from dual
8 /
RESULT_SET
TSTRINGS('TABLE', 'A', '70998',
'PROCEDURE', 'ABC', '54360',
'TABLE', 'ANIMALS', '84829',
'TABLE', 'B', '69604',
'PROCEDURE', 'BUILDNAMEMAP', '70155')
SQL>Note that as the row can contain any number of columns, it needs to be dynamic. This approach uses a collection type called TStrings to achieve this.