Concatenating all fields in a record

Is there a simple way to concatenate all fields in a record into a string?

Of course we can do it explicitly:
Field 1 + Field2 + ...

But I mean is there a builtin command or function (or any other simple way) to get an array of fields from a record?
For instance, something like:
Concat_Rec(Record_Id) returning an array of fields, which then we could concatenate with builtin concat() function.