Kumar Saurabh

In this PostgreSQL tutorial, we will learn about PostgreSQL CASE Multiple Columns with different examples such as using the simple and searched CASE. What are PostgreSQL CASE Multiple Columns? Similar to IF-THEN-ELSE statements in other programming languages, the CASE statement in PostgreSQL expresses a condition. It allows us to conditional login in SQL queries, which … Read more >>

In this PostgreSQL tutorial, we will know how PostgreSQL Insert Into Table Select * From Another Table with syntax and examples. PostgreSQL Insert Into Table Select * From Another Table Consider a situation where you need to insert the data from one table to another table, “What will you do?”. You will use the statement … Read more >>

In this PostgreSQL tutorial, we will discuss PostgreSQL Date Part Hour to get the hour value from the timestamp. Here we will use the function date_part() to extract the hour component with different examples such as from the current timestamp, interval, and table. What is PostgreSQL Date Part Hour The date_part() function in PostgreSQL returns … Read more >>

In this PostgreSQL tutorial, we will learn about “PostgreSQL Installation on Linux” with how to solve the error when installing PostgreSQL. Additionally, we will delve into the steps to create a new user, and database, and grant privileges within PostgreSQL. Step 1: Update the System Packages Before installing any new software, it’s essential to update … Read more >>