One of the typical requirements for new software is a prescribed minimum level of code coverage, i.e., the proportion of the source code that is executed by automated tests. Especially in areas such as medical technology, the automotive industry, or financial systems, 100 % code coverage is often required. But even code that is completely covered b...

A few days ago, I changed the service account of the SQL Server instances in my lab environment for Always On Availability Groups and now use a group Managed Service Account (gMSA). In the following, I present the necessary adjustments. Which service account do we recommend? As a service account for Microsoft SQL Server, we now generally recom...

Which services have been created during the installation? After installing a SQL Server instance, I typically look at the installed services with the customer or training participants. During installation, the “SQL Server Configuration Manager” is set up and linked in the Windows Start menu. The advantage of this interface is that only the services...

Now and then, smaller, or larger problems arise during consulting missions involving MySQL, which we would like to report here. In this case, our customer wanted to replace a MySQL single instance with a MySQL InnoDB cluster with three nodes. We have reported about the cluster here several times and do not discuss it in detail here. In this specifi...

When using Windows authentication for a connection to a Microsoft SQL Server, Kerberos is the first choice. Only if the use of this authentication scheme is not possible, NTLM (NT LAN Manager) is used. This is transparent for the user, and NTLM does not impose any restrictions in most cases. Therefore, in many environments it is not even noticed th...

Many customers operate databases that are constantly growing. This was also the case in this specific instance. Our client operates a very large MariaDB server with several hundred terabytes of data. A large part of the data must remain stored and accessible for regulatory reasons. Changes to this data are no longer made, but must be kept readable....