Encryption Operations in SQL Server

Hello everyone,

In this article, I will try to give information about encryption operations in SQL Server.

In SQL Server, in some cases, you may want to encrypt the data you have.

You can easily do this using the code below.

DECLARE @TestData NVARCHAR(MAX) = N'Yavuz Selim Kart';
SELECT HASHBYTES('MD2', @TestData) AS [Hash value],
       DATALENGTH(HASHBYTES('MD2', @TestData)) AS [Data lenght];
SELECT HASHBYTES('MD4', @TestData) AS [Hash value],
       DATALENGTH(HASHBYTES('MD4', @TestData)) AS [Data lenght];
SELECT HASHBYTES('MD5', @TestData) AS [Hash value],
       DATALENGTH(HASHBYTES('MD5', @TestData)) AS [Data lenght];
SELECT HASHBYTES('SHA', @TestData) AS [Hash value],
       DATALENGTH(HASHBYTES('SHA', @TestData)) AS [Data lenght];
SELECT HASHBYTES('SHA1', @TestData) AS [Hash value],
       DATALENGTH(HASHBYTES('SHA1', @TestData)) AS [Data lenght];
SELECT HASHBYTES('SHA2_256', @TestData) AS [Hash value],
       DATALENGTH(HASHBYTES('SHA2_256', @TestData)) AS [Data lenght];
SELECT HASHBYTES('SHA2_512', @TestData) AS [Hash value],
       DATALENGTH(HASHBYTES('SHA2_512', @TestData)) AS [Data lenght];

When you run the above code, you will see a result similar to the one below.

Encryption Operations in SQL Server

As you can see, we have encrypted the data.

Good luck to everyone in business and life.


Yavuz Selim Kart

I try to explain what I know in software and database. I am still improving myself by doing research on many programming languages. Apart from these, I am also interested in Graphic Design and Wordpress. I also have knowledge about SEO and Social media management. In short, I am a determined person who likes to work hard.

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