Comparing a view to an sql query

It might be helpful to people who are familiar with writing sql queries if there were a brief article drawing parallels between the components in the Views interface and an sql query. For example, relationships are like joins (if I am understanding things correctly). I know it should be obvious from the sql query that is shown at the bottom of the page, but it took me quite some time to make the connection.
I could write the text for the article (or section, or whatever you would call the piece of documentation) if you think it is a good idea to have it.