DbTypeToSqlServerStringNameResolver
This IResolver<DbType, string> implementation converts a .NET DbType into its equivalent SQL Server SQL type name (e.g. DbType.String → NVARCHAR, DbType.Guid → UNIQUEIDENTIFIER, DbType.Decimal → DECIMAL(18,2)). It is used internally by SqlServerConvertFieldResolver to build CONVERT(...) expressions.
Usability
var resolver = new DbTypeToSqlServerStringNameResolver();
var typeName = resolver.Resolve(DbType.Int64); // "BIGINT"