Here's the code to make updatable on the fly...
cd c:\temp
create database tester
create table testertable (iid i(4), cfirstname c(25), clastname c(25))
create sql view lv_testertable as select * from testertable
use lv_testertable nodata
cursorsetprop("SendUpdates", .T.) && This makes it updatable
insert into lv_testertable (iid, cfirstname, clastname);
values(2, "My First Name", "My Last Name")
=tableupdate()