Question
21 23 26 ? 39
51 What will come in the place of question mark (?) in the following number series:Solution
21 23 26 31 39 51 +2 +3 +5 +8 +12 +1 +2 +3 +4
Which deadlock prevention scheme allows older transactions to preempt younger ones?
Which of the following SQL queries would return the total number of employees in each department, but only for departments with more than 10 employees?
Which of the following commands are used to put a restriction on the number of rows returned from a query?
In an E-R diagram, a double rectangle represents a:
Consider the following Java-like pseudo-code for inserting a node into a Binary Search Tree (BST):
  ```java
  class Node {
Which of the following is a non-relational database?
What does the ‘
HTTPS ensures which of the following?
A program needs to process elements from a `Queue` until it becomes empty. Which control flow structure is most suitable for this task?Â
In a relational database, what is a candidate key?
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