A.Insert Into users(id,user_name) Values(100, "luhong") B.Insert Into users(real_name,tel) Values("卢红","6545632") C.Insert Into users(user_name,Email) Values("luhong", "") D.Insert Into users(user_name,Email) Values("luhong", NULL)
A.str=<"Select * From users Where reg_date># rq # B.str=<"Select * From users Where reg_date>#" & rq & "#" C.str=<"Select * From users Where reg_date>" & "#" & rq & "#" D.str=<"Select * From users Where reg_date>" & # rq #
A.符合条件的记录只有一条 B.有多条符合条件的记录 C.数据表中没有符合条件的记录 D.rs对象的Bof属性同时也为True