Learn Java and Programming through articles, code examples, and tutorials for developers of all levels.
Difference between table scan, index scan, and index seek in SQL Server Database? Example
How to find Nth Highest Salary in MySQL and SQL Server? Example LeetCode Solution
---------------------------------------------------------------
Write a SQL query to get the nth highest salary from the Employee table.
+----+--------+
| Id | Salary |
+----+--------+
| 1 | 100 |
| 2 | 200 |
| 3 | 300 |
+----+--------+
For example, given the above Employee table, the nth highest salary where n = 2 is 200. If there is no nth highest salary, then the query should return null.
10 Examples of df Command in Linux and UNIX
What does df mean?
The meaning of df in Linux is disk-free or disk file system. Which is used to display the file system in the likes of total storage space, available storage space and etc.
Df command in Linux is a command or syntax in Linux that you doing away with it is almost impossible
You may begin to wonder or ask Why or When do You need to use it?
How to use recursive grep command in Linux and UNIX? grep -iR Example tutorial
Difference between Soft Link vs Hard Links in Linux/UNIX? Answer
6 Linux command Examples and One liners Every Programmer Should Remember
How to Find large Files and Directories with size in Linux and UNIX? find + du command Example Tutorial
How to send Email with Body and Attachment from Linux Machine? mutt and mailx command Example
How to set JAVA_HOME and PATH in Linux? Example
How to backup and load Cron Jobs from a File in Linux and UNIX? Crontab Command Example
How to find swap space and usage in Solaris? Swap Command Example
How to send Logging Messages to SysLog using Log4j2 SysLogAppender in Linux ? Java Example
5 Ways to implement Singleton Design Pattern in Java? Examples
How to use Strategy Design Pattern in Java? Example Tutorial
10 Examples Of du Command in Linux
Here, we shall be looking at another command in Linux. The” du” command. Before giving the examples you can use with it I will be explaining the du itself, What is being used for and When to use it, and How to use it
So Firstly, What is DU or What does the command mean?
The full meaning of du is Disk usage. This helps in planning and maintaining the file’s space. The command is used to keep track of any files or directories that are taking up too many spaces in the hard disk drive. Now we shall be taking the examples one after the other.
3 Examples of for loop in Linux and Bash Script [Tutorial]
10 ways to Quit/Exit from Vim Editor in Linux/UNIX? Examples
10 Example of ps -ef command in Linux and UNIX
10 Examples of df Command in Linux
Hello, In Today’s article we shall be talking about the df command in Linux. The objectives of this article are: What is the df command, and what does it mean? How is it used? I shall be providing 10 different examples or scenarios for it and when to use it
What does df mean?
The meaning of df in Linux is disk-free or disk file system. Which is used to display the file system in the likes of total storage space, available storage space and etc.
Df command in Linux is a command or syntax in Linux that you doing away with it is almost impossible
You may begin to wonder or ask Why or When do You need to use it?
How to add or view SSL certificate in Java keyStore or trustStore? keytool command examples
How to use PreparedStatement in Java - JDBC Example Tutorial
How to Create and Start Multiple Threads in Java? - Example Tutorial
How to use wait, notify, and notifyAll in Java? Example Tutorial
How to Join and Merge Two ArrayLists in Java - Example Tutorial
What is Iterator in Java? Example
10 Easy Ways to Create and Sell NFTs (Non Fungible Tokens) in 2023
Top 5 Books to Improve Coding and Programming Skills - Must Read, Best of Lot
Top 5 Free Microsoft Power BI Online Courses for Beginners to Learn in 2023 - Best of Lot [UPDATED]
Top 5 Gifts You can Buy for Programmers, Coders, and Software Developers in 2023 - Best Gifts [UPDATED]
Top 10 NFT, Metaverse, and Web3 Courses on Udemy for Beginners - Best of Lot
Hello guys, if you want to learn NFT, Metaverse, and Web3, three future technologies and looking for best online courses then you have come to the right place. Earlier, I have shared best free NFT courses and in this article, I am going to share best NFT courses on Udemy as well best online courses to learn Metaverse and Web3 from Udemy. But, Before I give you a list of the 10 best courses that will teach you everything you need to know about NFTs and Metaverse, let me tell you a little bit about what web3 is and why people are talking about it.
Top 10 Java Multithreading Courses for Beginners in 2023 - Best of Lot [UPDATED]
Top 6 Free Courses to Learn Ethical Hacking and Penetration Testing in 2023 - Best of Lot [UPDATED]
Hello folks, if you want to learn Ethical Hacking and looking for free online courses, then you have come to the right place. Earlier, we have shared the best Cyber Security Courses, best CompTIA Security+ exam courses, and today, we are doing share free Ethical hacking courses for you. Most of us have even a little bit of knowledge about the subject or industry that would be ideal if you start a career in that field, but the problem for most people is finding the right course or program that help you master these skills and become professional in the field and click on this article likely shows that you are interested in ethical hacking.
Top 10 Java 8 Tutorials, Classes, and Courses in 2023 - Best of Lot [UPDATED]
How to convert Java object to JSON String using Gson? Example Tutorial
Top 10 Oracle Database and PL/SQL Courses for Beginners in 2023 - Best of Lot [UPDATED]
Top 5 Courses to Learn PyTorch and Keras for Beginners in 2023 - Best of Lot [UPDATED]
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Top 5 MEAN stack online Courses to Learn Web Development in 2023 - Best of Lot
Why String is Immutable or final in Java - 5 Reasons
Top 5 Courses to Learn Smart Contract for Beginners in 2023 - Best of Lot
Hello friends, if you want to learn Blockchain and Smart Contracts and looking for best online resources like books and courses then you have come to the right place. Earlier, I have shared best online courses to learn Blockchain, best Ethereum courses, and best NFT courses and today, I will share best online courses to learn Smart contracts in 2023. The list includes best smart contract courses from Udemy and Coursera and suitable for both beginners and experienced developers and IT professionals. Today we are gonna discuss something which is immensely practical and has the potential to land you very high paying jobs. Today we are gonna take a look at the best available smart contract courses online.