mysql中兩列的總和

Question

我在水晶報表中工作，我正在生成基於性能的報表。這是我的查詢

select mguser.userID, mguser.userName as Loger,date_format(trschedule.insDate,'%Y-%m-%d') as _Date, 
count(distinct trschedule.scheduleID) as Schedule_Count, count(*) segment_count 
FROM 
mguser 

我想這兩列---計數（不同trschedule.scheduleID）作爲Schedule_Count的總和，COUNT（*）SEGMENT_COUNT

我怎樣才能做到這一點在MySQL ???

Answer 1

select Loger,_Date, (Schedule_Count + segment_count) sum from 
(
    select mguser.userID, mguser.userName as Loger, 
    date_format(trschedule.insDate,'%Y-%m-%d') as _Date, 
    count(distinct trschedule.scheduleID) as Schedule_Count, 
     count(*) segment_count 
    FROM 
    mguser 
)d