Question
Which astronaut has been selected as the first woman to
participate in the upcoming Mission Artemis 2, which aims to land humans on the Moon?Solution
For the first time, a woman astronaut, Christina Koch, and a black astronaut, Victor Glover, will be part of a lunar mission.
MVCC (Multi-Version Concurrency Control) ensures:
Consider the following Java-like pseudo-code for inserting a node into a Binary Search Tree (BST):
  ```java
  class Node {
Given the following Python-like code snippet:Â
  ```python
  class Counter:
    def __init__(self):
   ...
Which SQL constraint ensures that a column cannot have NULL values?
What will be the output of the following Python code:
a=[1,2,3,4,5,6]
print(a[-1],a[-1:],a[:-1])
 What is the primary purpose of a "Trigger" in a database?
A `FOREIGN KEY` constraint is used to:
What does the ‘
Which of the following is a non-relational database?
Bitmap indexes are most efficient when:
Relevant for Exams:
