1. A method comprising: on a computer system comprising at least one server computer, defining, responsive to user input, a slice of a dimensional database, the slice comprising at least one dimension and at least one measurement of the dimensional database, wherein the slice is expressable as a table; the computer system building, in a structured query language (SQL) dialect, a single query that queries the slice and one or more non-dimensional databases; wherein the SQL dialect represents, using SQL constructs, the at least one dimension, the at least one measurement, and data attributes of the one or more non-dimensional databases; the computer system parsing the single query, the parsing comprising generating a dimensional query for the dimensional database and a non-dimensional query for each of the one or more non-dimensional databases; the computer system executing the dimensional query on the dimensional database; and for each non-dimensional database of the one or more non-dimensional databases, the computer system executing the non-dimensional query on the non-dimensional database.