RajKishore 
The most recent version of the well-known database management system utilised by companies around the globe is called Oracle 21c. The Datetime datatype in Oracle 21c is among the most significant data types. This essay will provide in-depth details about the Oracle 21c Datetime datatype. Oracle Datetime Datatype Introduction In Oracle 21c, dates and times … Read more >>
In this SQL Server tutorial, we will understand the difference between the SQL Server RIGHT OUTER JOIN and LEFT OUTER JOIN clauses on tables, complete with practical examples and best practices. Left Outer Join vs Right Outer Join In SQL What is a LEFT OUTER JOIN? A LEFT OUTER JOIN returns all records from the left table and the matching records … Read more >>
Recently, I was working on the Employee Attendance Management System Project, where I retrieved all records using the INNER JOIN clause. So, here we will focus on how to use the INNER JOIN clause on the tables. In this SQL Server tutorial, we will learn and understand how to use the SQL Server INNER JOIN clause on tables using … Read more >>
As a database developer, I’ve encountered many scenarios where choosing between INNER JOIN and LEFT JOIN can make or break query performance. Today, I’ll share my insights on these fundamental SQL concepts and help you understand when to use each one effectively. SQL Server INNER JOIN vs LEFT JOIN Before diving into the specifics of … Read more >>
Let us point out the differences between the MariaDB and MongoDB NoSQL databases as part of this article. We’ll explore their core concepts, features, performance, scalability, and practical use cases, along with tips on how to work with each effectively. This will help you with the MariaDB vs MongoDB decision. MariaDB vs MongoDB What Is … Read more >>
In this comprehensive MariaDB tutorial, I’ll walk you through everything you need to know about the MariaDB JSON data type—from its basics and advantages to practical methods for using JSON in your databases. MariaDB JSON data type We’ll learn about the MariaDB JSON data type in this part, which is described with illustrated syntax and an … Read more >>
In this article, we will explore the errors column count doesn’t match value count at row 1 that arise when using the JSON datatype in MariaDB. Column count doesn’t match value count at row 1 In MariaDB, the JSON datatype can’t be one of the following data types (invalid, Function, or Date). I have executed the queries below. After executing the second … Read more >>
When comparing SQL and MySQL, it’s essential to understand their relationship: SQL is a language used to manage databases, while MySQL is a specific database management system that uses SQL. Many developers confuse these terms, but knowing the difference helps you choose the right database for your projects. SQL vs MySQL Understanding the distinction between … Read more >>
In this MongoDB tutorial, we are going to cover how to create an index in MongoDB, including different methods, best practices, and practical examples. Create index in MongoDB What is an index in MongoDB? In MongoDB, indexes are special data structures that store a small part of the data set from which we can easily traverse. … Read more >>
In this tutorial, we will explore the PostgreSQL character data types, including CHAR, VARCHAR, and TEXT. Now, we will see the differences between TEXT and VARCHAR. At the end of this article, you will get clear guidance on when to use each data type for optimal database performance. PostgreSQL datatype text vs varchar Understanding PostgreSQL … Read more >>