Find Second Highest Salary using SQL query
Today I will share how to find second highest salary using SQL query of a employee table. So, first of all we can find highest salary using max(salar…
Technology Always in All Ways
Most of the people around the world using technology but have no idea how it works and who behind this. A lot of hard work from Software Engineers makes this world more beautiful and easy.
How to add Live Clock in React js
Hi there, today we will learn how to add a live clock to your react js web applications. We are going to implement this using react functional compon…
Remove Character from String
How to remove a character from a String. Suppose you are given a problem-solving coding test and said to do that. So you have to solve without using …
How to download backup PostgreSQL database
How to download backup PostgreSQL database. As we use digital ocean so have to log in to the server with the proper login credentials. So as I have a…
Git Most Used Commands
Git commands for learning. Today I'm sharing the git commands list that will be helpful for those people who use git as their code version contr…
How to restore PostgreSQL database
Today I'm going to share how to restore the PostgreSQL database. First, let me tell you what problem I have solved with it. I was working with so…
Convert Column Type in PostgreSQL
Convert a column to your desired type using the command. Suppose a numeric type column needs to convert to varchar so here it goes. alter table proj…
SQL Subquery
SQL subquery.
R8 Security for Android App Release Version APK
R8 includes a set of additional optimizations that are not enabled by default. You can enable these additional optimizations by including the followi…
