![]() The following sample of code shows how to create a stored procedure named GetLastName. The stored procedures are T-SQL sentences that cannot be applied to other databases like Oracle, MySQL, PostgreSQL. In SQL practice, it is necessary to mention the stored procedures because they are frequently used in SQL Server. Create a store procedure that receives the first name of the person table as input and the last name as output. In general, try to select only the columns required and not all. Note that the use of * is a bad practice for big tables, but in this case, it is a small table, so it will not impact performance. The following link provides more information about the operators: There are several other operators that you need to practice like the EXISTS, IN, =,, ANY. The like ‘a%’ will show all the first names that start with the letter a. The LIKE operator is very common in SQL queries. You will show all the columns with the select * and the where like ‘a%’ will filter the data to all the persons that the name starts with a. Please select all the information of persons table that the name starts with AĪ1. Install and configure the AdventureWorks2016 sample database.How to install SQL Server developer edition.The following links can help you if you do not have them installed: ![]() ![]() In order to start, you need the SQL Server installed and the Adventureworks sample database installed. That is why in this article, we will show some questions and answers to practice SQL. The software industry, including databases, is the world’s most in-demand profession. For data management, SQL knowledge is the base to handle databases and the numbers of jobs related to databases are growing each day. Data Scientists, BI Analysts, BI Developers, DBAs, Database Developers, Data Engineers, Reporting Analysts, and several other jobs require SQL knowledge as part of the knowledge required. Even some of the NoSQL databases use an extension of SQL to query data. SQL is the base to handle different databases. This article will show some important questions and answers to practice SQL. ![]()
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