MariaDB Vs MySQL Vs PostgreSQL

mariadb vs mysql vs postgresql

Choosing the right database system can significantly impact your application’s performance. Today, I’m diving deep into three of the most popular relational database management systems: MySQL, MariaDB, and PostgreSQL. MariaDB Vs MySQL Vs PostgreSQL Overview of the three Databases Before we dive into the technical comparisons, let’s discuss a foundational understanding of each database system. … Read more >>

How To Create An Index In PostgreSQL

How to Create Index If Not Exist in PostgreSQL

In this PostgreSQL tutorial, I will show how to create index in PostgreSQL.You will learn about the syntax of creating an index with multiple approaches. How To Create An Index In PostgreSQL While managing data in the database, indexes play a crucial role. The index enables you to locate information in the database quickly. The … Read more >>

PostgreSQL group_concat Example

STRING_AGG Function Pipe Separator in Postgresql

In this PostgreSQL tutorial, I will show you PostgreSQL group_concat Examples. I will use the different functions in place of group_concat to get a string of values separated by a separator. PostgreSQL group_concat Example With the Examples, I will show you how to use the STRING_AGG() function and combine the ARRAY_TO_STRING() and ARRAY_AGG() functions to achieve a similar result … Read more >>

How To Set Auto Increment In PostgreSQL

Auto Increment in PostgreSQL using SERIAL

In this PostgreSQL tutorial, I will show you how to define auto-increment in PostgreSQL. Additionally, you will understand the data types (such as SERIAL) used to define auto-increment for the column. How To Set Auto Increment In PostgreSQL When you don’t use the primary key with every table in PostgreSQL, then it is not a … Read more >>

PL/pgSQL Block Structure in PostgreSQL

Block Structure in PostgreSQL Verifying User

In this PostgreSQL tutorial, I will demonstrate how to implement the PL/pgSQL block structure in PostgreSQL. PL/pgSQL Block Structure in PostgreSQL The PL/pgSQL block structure acts as a prototype and is used when creating a function or procedure in PostgreSQL. Also, you will understand “What is an anonymous code block” and the concept of subblocks. Additionally, you … Read more >>

PostgreSQL INSERT Multiple Rows

PostgreSQL INSERT Multiple Rows

In this PostgreSQL tutorial, we will discuss how to insert multiple rows in PostgreSQL in a single statement. PostgreSQL INSERT Multiple Rows You can insert more than one row at a time in a single statement in PostgreSQL by specifying comma-separated multiple-row values in value list form as VALUES in the INSERT INTO statement. Syntax To insert multiple rows in PostgreSQL, follow … Read more >>

PostgreSQL now function

Postgresql now set()

In this PostgreSQL tutorial, we will study the use of PostgreSQL now() function that will allow us to create tasks with multiple real-time examples. PostgreSQL now function Before delving into the topic, let’s discuss what it is. What is the PostgreSQL NOW() Function? The NOW() function in PostgreSQL is used to get the current date and time. The … Read more >>

PostgreSQL date_trunc function

Postgresql date_trunc minutes

In this PostgreSQL tutorial, we will learn about the PostgreSQL date_trunc function, which extracts specific parts of the date and time, such as seconds, minutes, hours, days, months, and years. Postgresql date_trunc function In PostgreSQL, the date_trunc function is used to extract and truncate the specific date part (level of precision) of the date and time, such as seconds, minutes, … Read more >>

Row_number in PostgreSQL

Ranking Rows Using Row_number in PostgreSQL

In this PostgreSQL tutorial, I will show you how to use row_number in PostgreSQL to assign a unique sequential integer as a rank to each row. I will also tell you the importance of the Row_number() function with syntax and examples. Additionally, you will understand how to implement Row_number() for ranking and pagination with an … Read more >>

Top 200 SQL Server Interview Questions and Answers

Free PDF On Top 200 SQL Server Interview Questions And Answers

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