Answer:
Explanation:
Duplicate tuples are not allowed in a relation because the specifications of the constraints of the regional integrity are violated, especially the main constraint that states that there can be no identical values for the attributes of two tuples at any database relation state.
Also, duplicate tuples are not allowed in a relation due to the fact that they lead to redundancy of the data base which in turn, slowing down the speed of the database when data processing such as inserting, querying, updating, deleting, etc are being performed.
Answer:
B. having lunch with a friend
Explanation:
Lifelong learning can be defined as a continuous, self-motivated, and self-initiated learning activity that is typically focused on personal or professional development. Thus, it's a form of education that is undertaken throughout life with the sole aim of pursuing knowledge, competencies, and skills for either personal or professional growth and development, especially after acquiring a formal education.
Some examples of lifelong learning includes the following;
I. Reading a trade magazine.
II. Reviewing a textbook.
III. Studying an encyclopedia.
The item you described is a skimmer it is oftem=n placed and left for an amount of time or watched from afar than when no on is looking they run-up and extract it for its data
Answer:
ay di ko alam yan hahahaha
