Laurent Schneider

This is asked over and over in the forums, but why not proposing an 11g solution here

create table t(description varchar2(12) primary key, 
  numbers varchar2(4000));
insert into t(description, numbers) values ('PRIME','2,3,5,7');
insert into t(description, numbers) values ('ODD','1,3,5,7,9');
commit;

Now I want to unpivot numbers in rows

select description,(column_value).getnumberval()  
from t,xmltable(numbers)

It is that simple

Works also with strings :

select (column_value).getstringval() 
from xmltable('"a","b","c"');

11g, sql, xml xml

Yesterday I had my first session about XML, today I have one about SQL Model

Ok, it was the first time I spoke about XML so I did not really now where to focus. XML is so big, you have XQUERY, XPATH, dozens of XML functions in the database.

One of the XML function is called XMLTRANSFORM and transforms XML according to XSLT

I had a fun demo about XSLT to create a semi-column separated list :

select
   deptno,
   xmltransform
   (
      sys_xmlagg
      (
         sys_xmlgen(ename)
      ),
     xmltype
     (
       '<?xml version="1.0"?><xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
          <xsl:template match="/">
            <xsl:for-each select="/ROWSET/ENAME">
              <xsl:value-of select="text()"/>;</xsl:for-each>
          </xsl:template>
        </xsl:stylesheet>'
     )
  ).getstringval() listagg
from emp
group by deptno;

 DEPTNO LISTAGG
------- --------------------------------------
     10 CLARK;KING;MILLER;
     20 SMITH;FORD;ADAMS;SCOTT;JONES;
     30 ALLEN;BLAKE;MARTIN;TURNER;JAMES;WARD;

sql, xml xml