T-SQL | SQL-Server Pivot

Question

这是当前的查询：

SELECT 
    cod.COM_DESC
   ,count(emp.OBE_Name) colValue
   ,'Total'[Desc] 
FROM OBP_EMP_MASTER emp
LEFT JOIN COMMONCODES cod 
  ON  emp.OBE_AGENT_DR = cod.COM_SLNO 
WHERE OBE_AGENT_DR IS NOT NULL 
GROUP BY cod.COM_DESC

UNION ALL

SELECT 
     cod1.COM_DESC
    ,count(rep.OBE_Name) colValue
    ,'Replaced'[Desc]  
FROM OBP_EMP_REPLACE_HISTORY rep 
LEFT JOIN COMMONCODES cod1 
  ON rep.OBE_AGENT_DR = cod1.COM_SLNO 
WHERE OBE_AGENT_DR IS NOT NULL
GROUP BY cod1.COM_DESC

RESULT

期望的结果

Answer 1

尝试：

select
    Agent,
    max(case when `desc` = 'Total' then ColValue else 0 end) Total,
    max(case when `desc` = 'Replaced' then ColValue else 0 end) Replaced
from tbl
group by Agent  

演示 sqlfiddle