sql : how to split data from field in pentaho report designer

Question

In database say I have a product named X. This product have a category.
I am trying to split data from field name 'Category'.

for example
Product : X
Category : AA,BB,CC,DD

product and category located in different object.
the result that I want is like this :

in report

how to get the value of the field one by one and store it to each column of that category of the product?

Answer 1

You can do it in the sql query itself ( depends on an rdbms you are using ). Also you can try report scripting (js or groovy).