AutoMigration : can't ALTER table or column name error

Question

I have some issued in auto-migration approach which is given by M.S. Docs (link is below):
https://learn.microsoft.com/en-us/ef/core/managing-schemas/migrations/applying?tabs=dotnet-core-cli

( My Code )

   var host = CreateHostBuilder(args).Build();  
   using (var scope = host.Services.CreateScope())  
   {  
       var db = scope.ServiceProvider.GetRequiredService<UserInformationContext>();  
       db.Database.Migrate();  
   }  
   host.Run();  

Here using this approach I can't alter my table name and column name or even my column datatype.
why am i faced such a problem ?? give me some ideas to solve me these problems.