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:
print("I like to code")
Explanation:
In the Programming Languages, print() function is used to print any string, display any output or both at the same time as well as we can print it one by one. We can also print addition, subtraction, multiplication and other problems directly without saving it in other objects or variables.
In the above statement, the correct method of printing any string is to write that string inside the parameter with a double-quote.
The second option is incorrect because in it double-quote is not used.
The third option is incorrect because the following sequence is not correct.
Answer: just text them through their help thing or settings.
Explanation:
Answer:
Explanation:
This would be considered a setter method. In most languages the parameter of the setter method is the same as the variable that we are passing the value to. Therefore, within the function you need to call the instance variable and make it equal to the parameter being passed. It seems that from the function name this is being written in python. Therefore, the following python code will show you an example of the Employee class and the set_age() method.
class Employee:
age = 0
def __init__(self):
pass
def set_age(self, age):
self.age = age
As you can see in the above code the instance age variable is targeted using the self keyword in Python and is passed the parameter age to the instance variable.