Thanks for reply.

I use a table call newkey.dbf and field nextkey to record next pk and view pk is default value same to base table.

If I use append and replace command the nextkey will only +1
But if I use insert command the nextkey will +2

eg.

append blank & replace
view id = 1
base table id = 1
newkey = 2

insert
view id = 1
base table id = 2
newkey = 3

Why?

Further, If I add the record (append blank), and save it (tableupdate) and delete it immediately,

SELE view
=TABLEUPDATE()
SKIP

system will prompt me update conflict too, it need to

SELE view
DELE
SELE basetable
GO TOP
SELE view

to delete the record. ?????

TIA.