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:
output, process, input, and feedback
Explanation:
I personally feel that e-mail can be used for more business settings and as a more formal approach to things as opposed to a text, but option C seems to be more of an opinion. I would go with C or D.
Answer: 2 + 2 is 4 minus 1 thats 3 quick mafs
Explanation:
The likely cause of the printer printing in the wrong colors includes:
- Ink cartridges installed in the wrong spot
- leaking ink cartridges
<h3>What is a inkjet printer?</h3>
This refers to a computer peripheral that produces hard copies of a text document or photo by spraying droplets of ink onto paper.
In conclusion, the likely cause of the printer printing in the wrong colors includes ink cartridges installed in the wrong spot and leaking ink cartridges.
Read more about inkjet printer
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