Appendix B: Tpc-D Query Definitions - Compaq 112726-001 - ProLiant - 6500 White Paper

DSS Sizing and Tuning of Oracle8 for Windows NT on Compaq Servers Appendix B

Appendix B: TPC-D Query Definitions

Query 1 - Pricing Summary Report
TPC-D Business Question: Provides a summary pricing report for all Lineitems shipped as of a given
date, a date always within 180 days of the greatest shipdate contained in the database.
Functionality: Query 1 performs multiple aggregations and summaries by reading and processing over
95% of the rows of the database's largest table. Only this single table is scanned with a very low number of
rows being returned.
Query 2 - Minimum Cost Supplier
TPC-D Business Question: Find, in a given Region, for each Part of a certain type and size, the Supplier
who can supply it at minimum cost. If several suppliers in that region offer the desired part type and size
at the same (minimum) cost, the query lists the Parts from Suppliers with the 100 highest account
balances.
Functionality: Query 2 is a correlated subquery based on a 5-table join in both outer query and inner
query. Close to 5% of the Supplier rows result from the selection criteria and query processing, but only
the 100 Suppliers with the highest account balances are returned.
Query 3 - Shipping Priority
TPC-D Business Question: Retrieves the shipping priority and potential revenue of Orders having the
largest revenue among those that had not been shipped as of a given date. Orders are listed in decreasing
order of revenue. If more than 10 unshipped Orders exist, only the 10 Orders with the largest revenue are
listed.
Functionality: Query 3 performs a 3-table join on three of the larger tables in the database. Anywhere
from 1/5 to _ of the rows of each of the 3 tables participate in the joins, with a final aggregation that
produces a very high number of rows, in the millions for most volume points. Only the 10 Orders with the
highest revenue are returned.
Query 4 - Order Priority Checking
TPC-D Business Question: Counts the number of Orders ordered in a given quarter of a given year in
which at least one Lineitem was received by the Customer later than its committed date. The query lists
the count of such Orders for each order priority sorted in ascending priority order.
Functionality: Query 4 is a correlated subquery in which about 1/28 of the Lineitem rows are selected for
evaluation based on order date. An aggregation that produces a count by priority produces 5 rows in the
answer set.
Query 5 - Local Supplier Volume
TPC-D Business Question: Lists for each Nation in a Region the revenue volume that resulted from
Lineitem transactions in which the Customer ordering parts and the Supplier filling them were both
within that Nation. The query considers only Parts ordered in a given year, displaying the Nations and
revenue volume in descending order by revenue.
Functionality: This is a 5-table join of large and small tables, where the data aggregated is reduced down
to 1/5 of the Customers and Suppliers (representing one Region out of five) and 1/7 of the Lineitems (one
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