对于一个老菜鸟来说，配置的过程一波三折，费了九牛二虎之力，折腾了一上午才弄好，特此记录下来备用。
hi i have a table as followsid,school,address,city,state,phone,email,fax . There is almost 40 cities . I need to select 1 entry from each city. can any one guide me
加载中,请稍侯......