Access the tutorial at: http://www.tizag.com/sqlTutorial/
SQL and ETL – Extract, Transform and Load
ETL stands for Extract, Transform and Load, which is a process used to collect data from various sources, transform the data depending on business rules/needs and load the data into a destination database. Read more at: http://www.sql-tutorial.net/ETL.asp Also, you can download an SQL Chaetsheet: http://www.sql-tutorial.net/SQL-Cheat-Sheet.pdf
Introduction to Stored Procedures in SQL Server
The SQL Server Stored Procedures saves a collection of one or group of statements stored in the SQL Server. explains to you how to create, rename, modify, and delete Stored Procedures in SQL Server with examples: https://www.tutorialgateway.org/stored-procedures-in-sql/
Learn SQL Server via Tech-on-the-Net
With this tutorial, you should be on your way to becoming proficient in SQL Server and Transact-SQL. Look at:https://www.techonthenet.com/sql_server/index.php
You can especially access the JOINS chapter at: https://www.techonthenet.com/sql_server/joins.php
SQL SERVER – Getting Started with Azure Data Studio (ADS)
Take a quick look on how you can get started with the ADS: https://blog.sqlauthority.com/2019/04/13/sql-server-getting-started-with-azure-data-studio/
techgenix.com – Azure SQL or SQL server: Which one is right for you?
Let’s take a detailed look into how these two database systems compare with each other, and which of the two is best in different situations: http://techgenix.com/azure-sql-or-sql-server-which-one-is-right-for-you/
Learn Azure Data Studio and MS SQL via official documentation
Access official documentation at: https://docs.microsoft.com/en-us/sql/azure-data-studio/what-is?view=sql-server-ver15
Download: Microsoft SQL Server 2019 – Technical white paper
Additionally, you can obtain the whole SQL Server documentation as a pdf: https://docs.microsoft.com/en-us/sql/opbuildpdf/ab252483/toc.pdf?branch=live&view=sql-server-ver15 (it takes a while…)
Learn SQL via MSSQLTips
You can pick up one of the many topics provided there: https://www.mssqltips.com/sql-server-tutorials/
Learn SQL via SQL Server Tutorial.NET
If you are looking for an easy, fast, and efficient way to master SQL Server go to https://www.sqlservertutorial.net/
Guru 99: MS SQL Server Tutorial for Beginners: Learn in 7 Days
The online guide is designed for beginners with little or no SQL Server experience: https://www.guru99.com/ms-sql-server-tutorial.html
Additionally you can also read about the Top 50 SQL Server Interview Questions & Answers: https://www.guru99.com/sql-server-questions.html