HomeSQL ServerSQL Server Error Msg 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.

SQL Server Error Msg 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 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…

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