Answer:
Because it takes precision to a lot of things in tech and Eng. We need to measure all kinds of things, like wood, metal/etc. for computers and things that we use everyday, Because our world goes around being precise about things that we need everyday, like tables and things.
Explanation:
You need to attach a document of where i would read it from
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.
