Microsoft SQL Server database ranks third in the relational database, second only to Oracle and MySQL database. when using it, it is inevitable to encounter various problems and warnnings. You may be dba or a developer, I hope this content can help you solve SQL Server error number 6274.

Error number: 6274

Severity level: 16

Event logged: ALTER ASSEMBLY failed because the serialization format of type ‘%s’ would change in the updated assembly. Persisted types are not allowed to change serialization formats.