Oracle PL/SQL/XML/xmlforest

xmlagg and xmlforest

 
SQL> CREATE TABLE products(
  2    product_id              NUMBER(6),
  3    name            VARCHAR2(50),
  4    category        VARCHAR2(50),
  5    price      NUMBER(8,2),
  6    min_price       NUMBER(8,2)
  7  );
Table created.
SQL> select xmlelement( "Prodcategory",
  2            xmlattributes(p.category as "Category"),
  3            xmlagg(xmlelement("Product",
  4            xmlforest(p.name as "Name"))))
  5  from products p
  6  group by p.category;
no rows selected
SQL>
SQL> drop table products;
Table dropped.