Response dati in + tabelle in database access

[br1]

for (i=0; i<cerca.length; i++)
{
  if(i==0){ 
    sql += " AND ";
  }else{
    sql += " OR ";
  }
  sql += "(chiave LIKE '%" + cerca[i] + "%' OR porte LIKE '%" + cerca[i] + "%')";
}

ciao