Question
Is P the mother of R? I. O is the father of Q and
R. N has only one brother O. P is sister-in-law of N. N is unmarried. M is mother of N. M has only two children. II. H has only two children O and N. O is the father of Q. R is the only brother of Q. N is unmarried. H is the father-in-law of P. Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give answer –Solution
If every non-key attribute is functionally dependent on the primary key, the relation will be in
Query optimization heuristics often include:
 What is the primary purpose of a "Trigger" in a database?
In PL/SQL, a `CURSOR` is used to:
Which of the following operators is used to compare a value to a list of literal values that have been specified?
What does re.sub(r'(\w+)', r'_\1_', 'hello world') return?
Which of the following best describes the control flow when a method in a subclass overrides a method in its superclass, and an object of the subclass i...
Deadlock occurs when:
In a relational database, what is a foreign key?
Consider the following Java-like pseudo-code for inserting a node into a Binary Search Tree (BST):
  ```java
  class Node {