In my From. my button got such program.
pAirAcctDataBase = pub_airacctdatapath + 'account.dbc'
pSeaAcctDataBase = pub_seaacctdatapath + 'account.dbc'

pAirPrg = pub_airacctprgpath + 'caloverdueamt'
pSeaPrg = pub_seaacctprgpath + 'caloverdueamt'

OPEN DATABASE &pAirAcctDataBase
SET PATH TO &pub_airacctdatapath
set database TO &pAirAcctDataBase
SET PROCEDURE TO &pAirPrg additive
pAirDueAmt = CALOVERDUEAMt(pCompanyCode,pDate)
CLOSE DATABASE


OPEN DATABASE &pSeaAcctDataBase
SET PATH TO &pub_seaacctdatapath
set database TO &pSeaAcctDataBase
SET PROCEDURE TO &pSeaPrg additive
pSeaDueAmt = CALOVERDUEAMt(pCompanyCode,pDate)

Now. I can get the pAirDueamt and pSeaDueamt .
BUT It prompt an error "Cannot Access the selected Table"
I didn't put any tables in my form, and i use 'private data session"
How can solve it ???