Second Normal Form (2NF)
Before you understand the second normal form, let's explore what dependency is with the help of the following scenario.
In an enterprise, it is important that the security updates are installed on every server. This process is known as patching the servers. Typically, updates get installed every month, and at the end of the month, many organizations check the percentage of servers that had been patched during the month. This number is calculated based on how many servers have how many patches in the installed and not required state. This calculation is done per server. Apart from the operating system updates, we would also like to install application updates. Therefore, based on what team we are talking about and what applications they own, the percentage of compliance can change.
For example, imagine that Microsoft released four updates to the Windows operating system. Citrix Systems, Inc, a multinational software company, released one update to...