Oracle Express was a multi-dimensional database and application development environment for building OLAP applications. Normal relational databases store data in two-dimensional tables and analytical queries against them can be very slow.
Annuity Period: The length of time between income payments made under an annuity income plan; the time span may be monthly, quarterly, semi-annually, or annually. Arbitrage: The act of buying and selling commodities in two markets at the same time to benefit from price differences between the markets.
For some, payment ends with the death of the annuitant, but others provide for payment to a spouse or other beneficiary for years afterward. The fixed-period, or period-certain, annuity guarantees payments to the annuitant for a predetermined length of time.