Assessment Exercise: SQL

Sep 28, 2014 • Roberto Vitillo

1. Let’s assume we have a table with a single attribute whose entries are natural numbers. Say we apply to it an operator called “last” that returns the last record of the table. Is the returned result:
1) an attribute
2) a table
3) a row
4) a natural number

**2. Does the composability of relational operations remind you of a similar pattern used in a different software setting?
**