Answer and Explanation:
Group by clause bunches every one of the information coming back from the question in the predetermined gatherings.
Order by clause will arrange the information either in rising or in dropping order depending on the section data or column data.
It is certainly a lengthy from execution perspective.
Envision that the quantity of columns returned by the question are millions and gathering and arranging information from this parcel takes bigger execution time.
The procedure is a lot of equivalent to on the off chance that you are approached to arrange the precisely coordinating names in a populace measurements, it requires colossal measure of handling time to make sense of the precisely coordinating names and after that arranging them as needs be.
The distinction between where and having clause:
'Where' and having clause in SQL are utilized to indicate separating conditions.
There is a little contrast between these two clause and is given as under:
WHERE clause is utilized while getting data (lines or rows) from the table, and the information which clears the condition will only be considered into the result set.
HAVING clause is later utilized to channel a data summary or gathered data.
On the off chance that the two clauses show up in SQL question, where clause will execute at first and afterward having clause is executed on the groups that returns the group clause.
Hello, you haven't provided the programing language in which you need the code, I'll explain how to do it using Python, and you can follow the same logic to make a program in the programing language that you need.
Answer:
1. # -*- coding: utf-8 -*-
2. #Python
3. class Calculator:
4. def add(self):
5. print(a + b)
6. def sub(self):
7. print(a - b)
8. def mul(self):
9. print(a * b)
10. def div(self):
11. print(a / b)
12.
13. obj = Calculator()
14. choice = 1
15. while choice != 0:
16. a = int(input("\nEnter first number: "))
17. b = int(input("Enter first number: "))
18.
19. print("\n0. EXIT")
20. print("1. DIVISION")
21. print("2. ADDITION")
22. print("3. SUBTRACTION")
23. print("4. MULTIPLICATION")
24.
25. choice = int(input("\nEnter your choice: "))
26. if choice == 1:
27. obj.div()
28. elif choice == 2:
29. obj.add()
30. elif choice == 3:
31. obj.sub()
32. elif choice == 4:
33. obj.mul()
34. else:
35. break
Explanation:
- From lines 1 to 12 we define the object with four methods, addition, subtraction, multiplication, and division. Each method contains the operation between two variables inside a print function
- On line 13 we instantiate our class
- On line 14 we declare the variable choice that is going to store the operation that the user wants to perform
- On line 15 we declare a while loop, this is going to keep running the program until the user wants to exit
- From line 16 to 18 we ask the user to enter two numbers
- From line 19 to 24 we print the possible operation, assigning a number for each operation, this indicates to the user what number to press for what operation
- On line 25 we ask the user for the operation
- From lines 26 to 35 we check the user input an accordingly we call the corresponding method to performs the operation
That it was unread that’s what mine means
The appropriate response is Bus Interface Unit or BIU. The BIU gives different capacities, including era of the memory and I/O addresses for the exchange of information between outside the CPU, and the EU.
The EU gets program direction codes and information from the BIU, executes these guidelines, and store the outcomes in the general registers. By passing the information back to the BIU, information can likewise be put away in a memory area or kept in touch with a yield gadget. Note that the EU has no association with the framework transports. It gets and yields every one of its information through the BIU.
Answer:
def one_dimensional_booleans(bool_list, use_and):
is_all_true = True
is_one_true = False
if use_and:
for b in bool_list:
if b == False:
is_all_true = False
break
if is_all_true:
return True
else:
return False
else:
for b in bool_list:
if b == True:
is_one_true = True
break
if is_one_true:
return True
else:
return False
Explanation:
Create a function named one_dimensional_booleans that takes two parameters, bool_list and use_and
Inside the function:
Set is_all_true as True and is_one_true as False. These will be used to check the list
If use_and is True, check each item in the bool_list. If one item is False, set the is_all_true as False and stop the loop. This implies that the list contains a False value. Then check the is_all_true. If it is True, return True. Otherwise, return False.
If use_and is False, check each item in the bool_list. If one item is True, set the is_one_true as True and stop the loop. This implies that the list contains a True value. Then check the is_one_true. If it is True, return True. Otherwise, return False.
