是这样写的：
mysql> select sum(callcost) sumcallcost,
-> sum(duration) sumduration,
-> sum(chargeclass) sumchargeclass,
-> sum(acrtype) sumacrtype
-> from
-> (
-> select callcost, duration,chargeclass, acrtype
-> from acr_record
-> limit 1,10
-> ) a ;
56789874
内容全部来源于网络收集，如有侵权，请联系网站删除：QQ号：24596024