Examlex
In order to update data in SQL, one must inform the DBMS which relation, columns, and rows are involved.
Long Run
A period of time in which all factors of production and costs are variable, allowing all inputs to be adjusted.
Alternative Goods
Products or services that can be used in place of each other, satisfying the same customer need or want.
Society Forgoes
The opportunity costs that society incurs when choosing to allocate resources to one project or purpose over another, leading to the loss of potential benefits from other uses.
Q11: Discuss three possible opportunities for denormalization.
Q13: In the following diagram, which answer is
Q14: Anomalies do not generally arise out of
Q23: The third step in the data modeling
Q29: The views are created by executing a
Q37: A composite key consists of only one
Q56: Web Services Description Language is an XML-based
Q82: Which of the following data-mining techniques identifies
Q82: One reason to use an associative entity
Q104: A single value returned from an SQL