Step 1

To download SQL Express, use the following link: https://www.microsoft.com/en-us/download/details.aspx?id=42299

Step 2

When downloading, make sure you select the right language. It must match the language set on the server (where the database is later installed).

Step 3

Then select the SQL version with tools according to the server operation system.

Important:

The Express version is limited to a database file size of 10 GB and also offers only limited performance (according to Microsoft’s terms of use). 10 GB suffice typically for 200 million measured values.