18. The method as recited in claim 17 , wherein the context lookup query comprises a Java database connectivity (JDBC) context query in structured query language (SQL).
17. A method comprising: capturing a stream of operational events in real time; and materializing, by an activity monitoring computer system, a resulting view, wherein the resulting view comprises a dynamically defined view of the stream of operational events, wherein the materializing of the resulting view comprises: forming a context lookup query comprising a join plan, wherein each join node in the join plan joins a stream table and a context table, the stream table being associated with at least one event in the stream of events, and the context table being associated with context relevant to the at least one event.