SQL Server Error Msg 15666 – Cannot set key ‘%ls’ in the session context. The size of the key cannot exceed 256 bytes.

In this blog post, let’s learn about the error message “15666 – Cannot set key ‘%ls’ in the session context. The size of the key cannot exceed 256 bytes.” in Microsoft SQL Server, the reason why it appears and the solution to fix it.

SQL Server Error Message

15666 – Cannot set key ‘%ls’ in the session context. The size of the key cannot exceed 256 bytes.

Reason for the Error

To be update soon…

Solution

To be update soon…