Write SQL queries to: a. Select employees working at a specific bank. b. Update salary for employees in a specific department. c. Delete employee records based on their city. d. Count the number of employees in each company.
National University
Write a C/C++ program using nested loops to print the a pattern:
Explain the operations of a Dequeue (Double-Ended Queue) with examples.
Evaluate the following postfix expression: 6 4 3 2 + - *
Differentiate between binary and linear data structures with examples.
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What is a VPN?
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Analyze the output of the following Java code snippet: (Code involving array and System.out.println was given)