SQL Interview Questions part 4
You can see Part 3 here. 46) Display the various jobs and total salary for each job. 47) Display the various jobs and total salary for each job. 48) Display the depart numbers with...
Author: Shekhar Sharma
SQL Interview Questions part 3
You can see Part 2 here. 31) Display the maximum salary being paid to CLERK. 32) Display the maximum salary being paid to depart number 20. 33) Display the minimum salary being paid to...
SQL Interview Questions part 2
You can see Part 1 here. 16) Display the names of all tables from current user. 17) Display the name of the current user. 18) Display the names of employees working in depart number...
SQL Interview Questions part 1
The queries which we are going to share here, have mostly been asked in interviews. This is SQL interview questions part 1. 1) Display the details of all employees. 2) Display the department information from...
SQL Interview Questions
Here , we will cover most common queries/questions asked in SQL interviews. You can also share the questions that you would have faced in interviews , it might be helpful for the someone. You can...
Iterator in Java
In the previous post, we have learnt about TreeMap in java. In this post, we will learn about the Iterator in java. Iterator is used for iterating(looping) over collections classes in java like HashMap,...
TreeMap in Java
In the previous post, we have learnt about LinkedHashMap. In this post, we will learn about TreeMap in java. It has the following features as given below. It implements the NavigableMap interface and extends...
LinkedHashMap in java
In the previous post, we have seen how to remove elements from HashMap. In this post, we will learn about LinkedHashMap in java. LinekdHashMap has the following features. It implements Map and extends HashMap....
Remove key and value pair from HashMap
In the previous post, we have seen how to sort the HashMap on the basis of keys and values. In this post we will see how to remove key and value pair from HashMap....
Sort HashMap by keys and values
In the previous post, we have learnt how to iterate over the HashMap. In this post, we will see how to sort HashMap by keys and values. By default, HashMap does not preserve any...