摘要:
select convert(char(4),Years,120) as 'year',
IsFirstSixMonths=case when IsFirstSixMonths=0 then '上半年' when IsFirstSixMonths=1 then '下半年' END ,
sum(totalcome) as 'sum' from test
group by IsFirstSixMonths,convert(char(4),Years,120) 阅读全文
摘要:
底层传输系统 SDH,synchronous digital hierarchy
多协议标识交换 MPLS,multi-protocol label switching
标识交换路径 LSP,label-switched path
标识交换路由器 LSR,label-switched router
密集波分复用 DWDM,dense wave-division multiplexing
电子布告栏系统 BBS,bulletin board system
群决策支持系统 GDSS,group decision support systems
影片点播 MOD,movies on demand
远程购物 teleshopping
远程学习 distance learning
家庭银行 home banking
远程医疗telemedicine
电视会议video conferencing
内容制作content production
事务服务transaction services.... 阅读全文