V
victorwin
Unregistered / Unconfirmed
GUEST, unregistred user!
有两个DBF:1.dbf (10万记录),2.dbf(5万记录)
现用QUERY访问:
update "1.dbf" set fieldname="?????" where fieldname in (select fieldname from "2.dbf")
速度太慢,如何提速??
现用QUERY访问:
update "1.dbf" set fieldname="?????" where fieldname in (select fieldname from "2.dbf")
速度太慢,如何提速??