SQL Server provides the RIGHT function to select a number of characters starting from the right of the string. In this article, we will learn how to use right with SQL Server.
The basic syntax of a RIGHT is as follows:
SELECT RIGHT(string_name, length);
For this, we will be using docker. This is recommended for more than just using SQL Server. To find how to install docker go here: https://docs.docker.com/engine/install/
Now create a file called
docker-compose.yml and add the following.
version: "3.9" services: db: image: "mcr.microsoft.com/mssql/server" ports: - 1433:1433 environment: SA_PASSWORD: "Your_password123" ACCEPT_EULA: "Y"
Open a terminal and go to the folder the file is located. Then run the following.
If you are looking for another good reference, you can check here: https://docs.docker.com/samples/aspnet-mssql-compose/.
The basic example is straight forward. We can pass a string into the Right function with the number of characters we would like to select.
SELECT RIGHT('Hello World!', 6) as string;
That's the gist of using the right function. We can also use RIGHT on a table. If you would like to try that, let's first set up a table.
We start by creating an employee table to work with.
CREATE TABLE employees ( first_name VARCHAR (50) NOT NULL, last_name VARCHAR (50) NOT NULL );
Next, we can insert some data.
insert into employees (first_name, last_name) values ('Keith', 'Holliday'), ('Jon', 'Doe'), ('Jane', 'Doe');
And, we can preview the data like so.
SELECT * FROM employees;
Now that we are set up, we can use RIGHT on our columns.
SELECT RIGHT(first_name, 5) as name FROM employees;