摘要: select AckBegin , count(*) as incallcount,CallType, convert(varchar(10),sum(datediff(s,callbegin,callend))/3600)+':'+convert(varchar(10),sum(datediff(... 阅读全文
posted @ 2015-06-05 15:55 飞翔一梦 阅读(291) 评论(0) 推荐(0) 编辑