
A3 SPLASH 965
more complex database structure compared to TPC-A, multiple transaction types of
varying complexity, on-line and deferred execution modes, higher levels of conten-
tion on data access and update, patterns that simulate hot spots, access by primary
as well as nonprimary keys, realistic requirements for full-screen terminal I/O and
formatting, requirements for full transparency of data partitioning, and transaction
rollbacks.
TPC-D is a decision support benchmark. According to the TPC, decision support
describes a system's capability to support the formulation of business decisions
through complex queries against a database. The