Answer:
The correct answer is BC → A, A does not hold over S. we noticed the tuples (1 ,2 ,3 ) and (4 ,2 ,3) which can hold over S)
Explanation:
Solution
No, since in this case the instance of S is provided. so such particular dependencies are unable to breach through such instance, but unable to tell which the dependencies hold towards S.
A functional dependency holds towards only when a relation forms a statement regarding the complete allowed instances of relation.
Answer:
For most space objects, we use light-years to describe their distance. A light-year is the distance light travels in one Earth year. One light-year is about 6 trillion miles (9 trillion km). That is a 6 with 12 zeros behind it!
Answer:
The main cause of lack of jobs is due to automation and the ability for computers to do everything faster, more efficiently and effectively.
Explanation:
A specific example - Data entry jobs are redundant from automation programs
- Economic Forum predicted a net increase of 58 million jobs for automation, so this accounts for losses but isn't case specific to data entry