1. A method comprising: receiving, by a database server from a remote application server, a query associated with a calculation scenario that defines a data flow model that includes one or more calculation nodes, each calculation node defining one or more operations to execute on the database server, the database server comprising a column-oriented database; instantiating, by the database server, the calculation scenario; executing, by the database server, the operations defined by the calculation nodes of the instantiated calculation scenario to result in a responsive data set having a result table with a row for each column in the column-oriented database implicated by the query having a constant value; and providing, by the database server to the application server, the data set.