b = a - 7

Variabila b este data si poti sa faci tot ce faci cu o data:

year( b) - anul

month( b) - luna

day( b) - ziua

nu m-am exprimat clar;

am o secventa de program in fox cu citire de data pentru deschidere de baze de date care contin in denumire yymmdd

si as vrea sa o trec in visualfox;

wz=0
wl=0
wan=0
@ 3,1 say "Calcul pentru ziua:" get wz pict '99'
@ 3,40 say "luna:" get wl pict '99'
@ 3,50 say "si anul:" get wan pict '9999'
read
wdata1=ctod(iif(wz<10,'0'+str(wz,1),str(wz,2))+'/'+iif(wl<10,'0'+str(wl,1),str(wl,2))+'/'+str(wan,4))
wdata2=wdata1-7
? wdata2                          ........ nu recunoaste data
an=year(wdata2)
ll=month(wdata2)
zi=day(wdata2)

daca trec wdata1 in

wdata1='{^'+str(wan,4)+'-'+iif(wl<10,'0'+str(wl,1),str(wl,2))+'-'+iif(wz<10,'0'+str(wz,1),str(wz,2))+'}'
? wdata1
dd=wdata1-7 ( imi da eroarea operator/operand type mismatch)
?dd

daca scriu

dd=ctod(wdata1)-7

rezulta   /  /  

multumesc

da, e o.k.

multumesc frumos.