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.
Yes you do have to program it first.
Answer:
The answers are <em>"</em><em>hacker </em><em>and </em><em>hacking</em><em>"</em>
Explanation:
LOLer is an security hacker who uses computer bugs and other exploits to break into a company or personal network system by using their personal ingenuity and other accesses. Thus the process he described of getting into the company server details and getting peoples IP addresses and details on the company involves security hacking of the company network.