Class O1.S1 (Duration, Interval, Computed)


=centercr @ []QUERY Q 2.1.1: Which departments had managers who served for the shortest continuous period?
ANSWER: ``Book''
CATEGORY: (Projected, None) / (Duration, Interval, Computed) /


=centercr @ []QUERY Q 2.1.2: Who worked continuously in the Book department for at least as long as Di did?
ANSWER: ``ED''
CATEGORY: (Projected, None) / (Duration, Interval, Computed) / (=, Constant) (=, Constant)


=centercr @ []QUERY Q 2.1.3: Who worked continuously in the Toy department for at least as long as Di did?
ANSWER: ``None''
CATEGORY: (Projected, None) / (Duration, Interval, Computed) / (=, Constant) (=, Constant)


=centercr @ []QUERY Q 2.1.4: Who worked continuously in a department longer than their current manager worked in that department?
ANSWER: ``None''
CATEGORY: (Projected, None) / (Duration, Interval, Computed) (Containment, Event, Explicit) /


=centercr @ []QUERY Q 2.1.5: Who had the same salary for the longest continuous time period?
ANSWER: ``DI''
CATEGORY: (Projected, None) / (Duration, Interval, Computed) /


=centercr @ []QUERY Q 2.1.6: Who worked for a manager in a department for a period as long as that manager managed the department?
ANSWER: ``DI'' and ``ED''
CATEGORY: (Projected, None) / (Duration, Interval, Computed) /


=centercr @ []QUERY Q 2.1.7: Which managers served continuously longer than some other manager?
ANSWER: ``DI''
CATEGORY: (Projected, None) / (Duration, Interval, Computed) /