The previous recipe covered the basics of
tMap joining, but
tMap has another level of joining capability, in that it can join together data in a hierarchical fashion. This simple example shows how easily this can be achieved using
Open the job
tMapcomponent. You will see three input tables.
customertable and drag it into Expr. key of the
customerIdin the order table.
ordertable to Inner Join and All Matches (see previous recipe if you are not sure how to do this)