c# - SQLですでに合計されている列の合計

Question

SELECT DISTINCT emp_no, sum(CASE WHEN isnull(PresAbs,0)='WO' THEN 1 ELSE 0 END)  WO,
    sum(CASE WHEN isnull(PresAbs,0)='WP' THEN 1 ELSE 0 END)  WP, 
sum(CASE WHEN isnull(PresAbs,0)='HL' THEN 1 ELSE 0 END)  HL, 
sum(CASE WHEN isnull(PresAbs,0)='A' THEN 1 ELSE 0 END)  A,**sum(WO+WP+HL+A)** 
from TRN_ATTN072013 WHERE CONVERT(varchar,Tdate,112)>'20130712' and CONVERT(varchar,Tdate,112)<'20130717' 
group by emp_no
ORDER BY emp_no

この列を合計したい WO,WP,HL,A これらの列を合計するにはどうすればよいですか

Answer 1

mysqlで;）

SELECT emp_no, wo+wp+hl+A FROM 
(SELECT DISTINCT emp_no, sum(CASE WHEN isnull(PresAbs,0)='WO' THEN 1 ELSE 0 END)  WO,
sum(CASE WHEN isnull(PresAbs,0)='WP' THEN 1 ELSE 0 END)  WP, 
sum(CASE WHEN isnull(PresAbs,0)='HL' THEN 1 ELSE 0 END)  HL, 
sum(CASE WHEN isnull(PresAbs,0)='A' THEN 1 ELSE 0 END)  A,**sum(WO+WP+HL+A)** 
from TRN_ATTN072013 WHERE CONVERT(varchar,Tdate,112)>'20130712' and   CONVERT(varchar,Tdate,112)<'20130717' 
group by emp_no
ORDER BY emp_no) AS SUB_Q;