摘要: select * from (Select * from t_currency_ratewhere f_orig_curr='USD' and f_dest_curr='RMB'Order by abs(f_date-sysdate) ) awhere rownum=1 阅读全文
posted @ 2013-10-18 15:10 PianoCoder 阅读(6179) 评论(0) 推荐(0) 编辑