d so that the
differences in database formats are mostly abstracted away.</p>
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<p>To make good use of the data we will have to look at the metadata and
inspect the member columns and variables available.</p>

<p>This gives us an understanding of the available variables. For the
purpose of this vignette we are interested in the breakdown of sales
units by Vehicle type in Canada overall. The data is stored in its raw
form in the database, the only processing done is that