setsysparam(pn_stock(),'SZ000002');
a:=nday(20,'date1',sp_time(),'daydif',close());
b:=nday(10,'date2',sp_time(),'min',close());
c:=select [1].*, [2].['min'] from a join c with ([1].['date1'] on [2].['date2']) end;
return c;
如果需要通过多个字段来连接,那么实现方法如下:
Select * from a join b with([1].[‘字段1’],[1].[‘字段2’] on [2].[‘字段1’],[2].[‘字段2’]) end;