Arindam Mondal
'HELLO',1,2

Understanding Substring in Oracle SQL

March 22, 2023 by

The Oracle SQL database provides many useful functions to use with your query or programming. The SUBSTR function is one of the most used string functions in the Oracle SQL database. I will also discuss a few important string functions TRIM, UPPER, and LOWER which can be used along with substring functions. In this article, we will discuss substring in Oracle SQL.

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Manvendra Singh
Compare PostgreSQL vs MySQL

PostgreSQL vs MySQL: Understanding their differences

March 13, 2023 by

Today, we will compare the two most popular database products PostgreSQL vs MySQL, and explain the differences between them in this article. There are many database systems based on the relations database management system (RDBMS) concept in the market. Some of them are Oracle, SQL Server, MySQL, PostgreSQL, etc. It’s really important to understand the differences between them before selecting any database product for your application. Keeping this in mind, I am writing this article to explain these two database systems i.e., PostgreSQL vs MySQL, and compare them from various aspects so that you can understand them before taking any decision for your requirements.

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Randheer Parmar
Oracle Database Migration to Azure SQL Database. SQL Server Migration Assistant.

Migrating Oracle Database to Azure SQL Database

February 9, 2023 by

Data Modernization has become important nowadays. Organizations are looking into options to migrate their on-premises database to a cloud and some other heterogeneous databases. In this article, we will see the strategy and options to migrate the Oracle database to the Azure SQL database. We will be leveraging the SSMA tool for migrating the database.

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Manvendra Singh
Use case of OFFSET clause

Getting started with SQL LIMIT clause

January 13, 2023 by

Today, I am going to explain how to use the SQL LIMIT clause to limit output values. We all know RDBMS systems are one of the popular ways to store, protect, access, and analyze data in a structured way. We can store enormous sizes of data and then further can access them with the help of SQL language to get our desired output to analyze it. SQL stands for Structured Query Language which is used to perform activities like creating, modifying, and accessing data from the databases hosted on RDBMS systems like SQL Server or MySQL, etc. This article will explain one of the SQL query statements LIMIT which we use to limit the number of records returned in the output result.

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Daniel Calbimonte
Power BI Desktop - Get data

How to create Power BI reports

January 11, 2023 by

In this article, we will learn how to create Power BI Reports. This article is created for newbies to start the Power BI world with a simple example. We will connect to SQL Server, show how to transform data from SQL Server in Power BI, and then we will create some reports, and play with the options available in Power BI.

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Esat Erkec
We need to use IS NULL or IS NOT NULL syntax when we compare the NULL values in a table

5 Best Practices for writing SQL queries

December 30, 2022 by

In this article, we are going to learn some best practices that help to write more efficient SQL queries.

Introduction

Queries are used to communicate with the databases and perform the database operations. Such as, we use the queries to update data on a database or retrieve data from the database. Because of these functions of queries, they are used extensively by people who also interact with databases. In addition to performing accurate database operations, a query also needs to be performance, fast and readable. At least knowing some practices when we write a query will help fulfill these criteria and improve the writing of more efficient queries.

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Manvendra Singh
Difference between SQL and MySQL

Understanding the difference between SQL and MySQL

December 26, 2022 by

This article will explain the difference between SQL and MySQL. Many people get confused between several database terms like SQL, MySQL, SQL Server, or other SQL-related phrases. If you are a database professional, then you should be aware of the difference between SQL and MySQL or other phrases which have SQL words included like PostgreSQL, Cloud SQL, TSQL, etc. Most of these terms are divided between a query language and database software like TSQL and SQL are query languages whereas MySQL, SQL Server, and PostgreSQL are database software.

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