We won’t mix their data but rather relate them. if we want to store data describing cities and countries, we’ll have two separate tables in our database – one for cities and another one for countries. Manner that everything that belongs to the same real-life entity goes to the same table.Į.g. When we look at our data and we need to decide what goes where we should group data in tables in such a There is a lot of theory behind database tables, and how to decide what goes where, but the simplest you can do is following. Each book has its own contents but is somehow related to other books on the same shelf – either by sharing some properties, either by just being close. If you think of a library, a database is one shelf with books, and each book is a table. I love to use analogies a lot, so I’ll do it here too. In database theory, a table is a structure (“basic unit”) used to store data in the database. The problem is that we don’t have anything stored inside the database. This is cool and you’ve just successfully created your first database. In order to create a new database on our server, weĪfter running this command, our database is created, and you can see it in the databases list:Ĭlick on the + next to the folder Databases, and besides two folders, you’ll also see that I’ll simplify it a lot and go only with the most basic form. You can see the full T-SQL Create Database syntax Luckily, one of these commands is the SQL Create Database command. T-SQL is a language and as such it has its’ words – set of rules on how to write different commands. It looks like on the picture below:īefore typing anything, we should be sure we’re typing it in the right way. After clicking on the New Query, the new window opens and we’re able to type something in. We’ll make it more fun by creating a new database. We’ll discuss these in upcoming articles.Īfter installing and opening Microsoft SQL Server Management Studio, our screen looks something like this: I won’t go in-depth in this article, but we can conclude this part with a statement that a database is an organized set of tables that contain data from the real-world and some additional columns needed for the system to work properly. The Structured Query Language (SQL), including transaction control, exception and error handling, row processing T-SQL (Transact-SQL) is a set of programming extensions from Sybase and Microsoft that add several features to So, DBMS is SQL Server, and the language we’ll use is T-SQL. In this article, I’ll use the Microsoft SQL Server Express edition. A database is usually controlled by a database management system (DBMS). I’ll use theĪ database is an organized collection of structured information, or data, typically stored electronically in aĬomputer system. In the upcoming articles, we’ll insert data into these tables, update and delete data, but also add new tables and create queries.īefore we create a database using the SQL Create database command, I want to define what a database is. SQL Create Table command) as shown in the picture above. ![]() The goal of this article is to create a database (using the SQL Create Database command) and two tables (using the Later in this series, I’ll try to cover everything essential for the complete beginner to jump into the magical world of SQL and databases. While both are pretty simple, they should be used first before you start working on anything with data (unless you use some template database). In this part, we’ll start with two essential commands in SQL:Ĭreate Database and Create Table. ![]() Welcome to the first article in the Learn SQL series.
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