Rajesh Umrao‒Data&AI

What will be the output of the following Python code?
list1 = ['Rajesh' , 'Umrao' , 'Data' , 'AI' ]
list2 = [ name.lower() for name in list1]
print (list2[1][0])

10 hours ago | [YT] | 2

Rajesh Umrao‒Data&AI

In SQL, What does NULLIF(a, b) return if a = b?

10 hours ago | [YT] | 3

Rajesh Umrao‒Data&AI

Why is EXISTS often faster than IN?

1 day ago | [YT] | 3

Rajesh Umrao‒Data&AI

In SQL, Which function is best to replace NULL with a calculated value?

2 days ago | [YT] | 5

Rajesh Umrao‒Data&AI

What happens when you ROLLBACK after a TRUNCATE?

2 days ago | [YT] | 9

Rajesh Umrao‒Data&AI

Which SQL object stores the execution plan but not data?

5 days ago | [YT] | 6

Rajesh Umrao‒Data&AI

In SQL, What does COUNT(column_name) ignore?

6 days ago | [YT] | 7

Rajesh Umrao‒Data&AI

Which join can return rows even when the join condition never matches?

6 days ago | [YT] | 6

Rajesh Umrao‒Data&AI

What is the main difference between RANK() and DENSE_RANK()?

1 week ago | [YT] | 8

Rajesh Umrao‒Data&AI

Which clause is evaluated after GROUP BY but before ORDER BY?

1 week ago | [YT] | 4