In this blog post, let’s learn about the error message “6991 – Invalid restriction for type ‘%s’. If the base type has empty content, then the derived type must as well, and if the derived type has empty content, then the base type must be emptiable.” in Microsoft SQL Server, the reason why it appears and the solution to fix it.
SQL Server Error Message
6991 – Invalid restriction for type ‘%s’. If the base type has empty content, then the derived type must as well, and if the derived type has empty content, then the base type must be emptiable.
Reason for the Error
To be update soon…
Solution
To be update soon…