我有以下表结构也提到我的预期输出请帮我查询，因为我对SQL查询不太了解
查询：
SELECT fname,
lname,
(SELECT combovalue
FROM dbo.combovalues
WHERE id = esilocation) AS ESILocation,
(SELECT combovalue
FROM dbo.combovalues
WHERE id = esidispensary) AS ESIDispensary,
dateofjoining,
terminationdate
FROM dbo.employeedetail
输出：
FName LName ESILocation ESIDispensary DateOfJoining TerminationDate
Pratik Sawant pune mumbai 2014-06-08 2014-08-01
Nilesh Gajare pune pune 2014-09-12 2014-11-19
Praveen SONi mumbai mumbai 2014-08-13 2014-11-13
Prshant Sawant mumbai mumbai 2014-11-18 NULL
rohit bhora pune pune 2014-09-20 2014-11-20
sujit patil pune mumbai 2014-10-20 2014-11-20
Akshay patil pune pune 2015-09-24 NULL
查询2：
SELECT category,
(SELECT combovalue
FROM dbo.combovalues
WHERE id = esilocation) AS ESILocation,
(SELECT combovalue
FROM dbo.combovalues
WHERE id = esidispensary) AS ESIDispensary,
Month(dateofjoining) AS month,
Year(dateofjoining) AS year,
Count(*) AS [Joining Count]
FROM dbo.employeedetail
WHERE category IN ( 1, 2 )
AND dateofjoining >= '2014-01-01'
AND dateofjoining <= '2014-12-31'
GROUP BY category,
esilocation,
esidispensary,
Month(dateofjoining),
Year(dateofjoining)
输出：
Category ESILocation ESIDispensary month year Joining Count
1 mumbai mumbai 8 2014 1
1 pune mumbai 6 2014 1
2 pune mumbai 10 2014 1
2 pune pune 9 2014 2
查询3：
SELECT category,
(SELECT combovalue
FROM dbo.combovalues
WHERE id = esilocation) AS ESILocation,
(SELECT combovalue
FROM dbo.combovalues
WHERE id = esidispensary) AS ESIDispensary,
Month(terminationdate) AS month,
Year(terminationdate) AS year,
Count(*) AS [Termination Count]
FROM dbo.employeedetail
WHERE category IN ( 1, 2 )
AND ( Month(terminationdate) IS NOT NULL
OR Month(terminationdate) != '' )
AND ( Year(terminationdate) IS NOT NULL
OR Year(terminationdate) != '' )
GROUP BY category,
esilocation,
esidispensary,
Month(terminationdate),
Year(terminationdate)
输出：
Category ESILocation ESIDispensary month year Termination Count
1 mumbai mumbai 11 2014 1
1 pune mumbai 8 2014 1
2 pune mumbai 11 2014 1
2 pune pune 11 2014 2
第二次和第三次查询给出终止和加入计数的计数，预期结果应该在单个表中显示两个计数
预期产出
Category ESILocation ESIDispensary Joining Termination Joining Termiation
Count Count Count Count
Jun-2014 jun-2014 Aug-2014 Aug-2014
1 mumbai mumbai Null Null 1 Null
1 pune mumbai 1 Null Null 1
2 pune mumbai Null Null Null Null
2 pune pune Null Null Null Null
@Update
根据@Markus Jarderot的回答我得到了这个输出
category esilocation esidispensary year month Joining Count Termination Count
1 mumbai mumbai 2014 8 1 0
1 mumbai mumbai 2014 11 0 1
1 pune mumbai 2014 6 1 0
1 pune mumbai 2014 8 1 1
2 pune mumbai 2014 10 1 0
2 pune mumbai 2014 11 0 1
2 pune pune 2014 9 2 0
2 pune pune 2014 11 0 2
但问题是我想要上表中的Pivot，即
预期产出
category esilocation esidispensary 8/2014 join 8/2014 term 11/2014 join 11/2014 term
1 mumbai mumbai 1 0 0 1
1 pune mumbai 1 1 null null
2 pune mumbai null null 0 1
2 pune pune null null 0 2
答案 0 :(得分：1)
select data.category, cl.combovalue as esilocation, cd.combovalue as esidispensary,
year(date) as year, month(date) as month,
sum(data.joins) as [Joining Count], sum(data.terms) as [Termination Count]
from (
select category, esilocation, esidispensary, dateofjoining as date,
1 as joins, 0 as terms
from dbo.employeedetail
where dateofjoining is not null
union all
select category, esilocation, esidispensary, terminationdate as date,
0 as joins, 1 as terms
from dbo.employeedetail
where terminationdate is not null
) data
left join dbo.combovalues cl on cl.id = data.esilocation
left join dbo.combovalues cd on cd.id = data.esidispensary
where category in ( 1, 2 )
and date >= '2014-01-01'
and date <= '2014-12-31'
group by data.category, cl.combovalue, cd.combovalue, year(date), month(date)
答案 1 :(得分：0)
SELECT category,
(SELECT combovalue
FROM dbo.combovalues
WHERE id = esilocation) AS ESILocation,
(SELECT combovalue
FROM dbo.combovalues
WHERE id = esidispensary) AS ESIDispensary,
Month(dateofjoining) AS month,
Year(dateofjoining) AS year,
convert(varchar,DateName(month , DateAdd( month , Month, 0 ) - 1 ))+'
'+convert(varchar,year) as DOJ
into #temp
FROM dbo.employeedetail
WHERE category IN ( 1, 2 )
AND dateofjoining >= '2014-01-01'
AND dateofjoining <= '2014-12-31'
GROUP BY category,
esilocation,
esidispensary,
Month(dateofjoining),
Year(dateofjoining)
DECLARE @cols NVARCHAR(2000)
SELECT @cols = STUFF(( SELECT DISTINCT TOP 100 PERCENT
‘],[' + t2.ColName
FROM #temp AS t2
ORDER BY '],[' + t2.ColName
FOR XML PATH('')
), 1, 2, '') + ']‘
DECLARE @query NVARCHAR(4000)
SET @query = N’SELECT tID, ’+
@cols +‘
FROM
(SELECT t1.columnname
FROM #temp AS t1 Group By DOJ
) p
PIVOT
(
Count(DOJ)
FOR ColName IN
( ’+
@cols +‘ )
) AS pvt
execute(@query)
以上查询为您提供连接日期计数您可以执行的终止日期计数