Database 按月从多个表中获取记录
我有这样的场景:我有许多表,每个表都有日期字段Database 按月从多个表中获取记录,database,sql-server-2008,monthcalendar,Database,Sql Server 2008,Monthcalendar,我有这样的场景:我有许多表,每个表都有日期字段 Table: FA Id | Created_Date | ------------------------ 1 | 1/12/2012 | 2 | 2/15/2012 | 3 | 2/25/2012 | Table: TPA Id | Created_Date | ------------------------ 1 | 3/10/2012 | 2 | 4/25/2012 | 3 | 5/20/2012 |
Table: FA
Id | Created_Date |
------------------------
1 | 1/12/2012 |
2 | 2/15/2012 |
3 | 2/25/2012 |
Table: TPA
Id | Created_Date |
------------------------
1 | 3/10/2012 |
2 | 4/25/2012 |
3 | 5/20/2012 |
4 | 5/21/2012 |
Table: Gift
Id | Created_Date |
------------------------
1 | 6/10/2012 |
2 | 7/25/2012 |
3 | 8/10/2012 |
3 | 7/11/2012 |
我想要输出,就像我想要每个表中记录的总数一样,并使用创建的日期字段日期按月显示它
预期输出如下:
试试这个解决方案
SELECT MonthName,
COALESCE(FA, 0) FA,
COALESCE(TPA, 0) TPA,
COALESCE(GIFT, 0) GIFT
FROM
(
SELECT monthList.ordby,
monthList.MonthName,
org.TableName,
org.TotalCount
FROM
(
SELECT 1 ordby, 'January' MonthName UNION SELECT 2, 'February' UNION
SELECT 3, 'March' UNION SELECT 4, 'April' UNION
SELECT 5,'May' UNION SELECT 6,'June' UNION
SELECT 7,'July' UNION SELECT 8,'August' UNION
SELECT 9,'September' UNION SELECT 10,'October' UNION
SELECT 11,'November' UNION SELECT 12,'December'
) monthList
LEFT JOIN
(
SELECT 'FA' TableName,
DATENAME(mm,Created_Date) MonthName,
COUNT(*) TotalCount
FROM FA
GROUP BY DATENAME(mm,Created_Date)
UNION
SELECT 'TPA' TableName,
DATENAME(mm,Created_Date) MonthName,
COUNT(*) TotalCount
FROM TPA
GROUP BY DATENAME(mm,Created_Date)
UNION
SELECT 'Gift' TableName,
DATENAME(mm,Created_Date) MonthName,
COUNT(*) TotalCount
FROM Gift
GROUP BY DATENAME(mm,Created_Date)
) org ON monthList.MonthName = org.MonthName
) data
PIVOT
(
MAX(TotalCount)
FOR TableName IN ([FA], [TPA],[GIFT])
) head
ORDER BY ordby
试试这个解决方案
SELECT MonthName,
COALESCE(FA, 0) FA,
COALESCE(TPA, 0) TPA,
COALESCE(GIFT, 0) GIFT
FROM
(
SELECT monthList.ordby,
monthList.MonthName,
org.TableName,
org.TotalCount
FROM
(
SELECT 1 ordby, 'January' MonthName UNION SELECT 2, 'February' UNION
SELECT 3, 'March' UNION SELECT 4, 'April' UNION
SELECT 5,'May' UNION SELECT 6,'June' UNION
SELECT 7,'July' UNION SELECT 8,'August' UNION
SELECT 9,'September' UNION SELECT 10,'October' UNION
SELECT 11,'November' UNION SELECT 12,'December'
) monthList
LEFT JOIN
(
SELECT 'FA' TableName,
DATENAME(mm,Created_Date) MonthName,
COUNT(*) TotalCount
FROM FA
GROUP BY DATENAME(mm,Created_Date)
UNION
SELECT 'TPA' TableName,
DATENAME(mm,Created_Date) MonthName,
COUNT(*) TotalCount
FROM TPA
GROUP BY DATENAME(mm,Created_Date)
UNION
SELECT 'Gift' TableName,
DATENAME(mm,Created_Date) MonthName,
COUNT(*) TotalCount
FROM Gift
GROUP BY DATENAME(mm,Created_Date)
) org ON monthList.MonthName = org.MonthName
) data
PIVOT
(
MAX(TotalCount)
FOR TableName IN ([FA], [TPA],[GIFT])
) head
ORDER BY ordby
自从上次4小时以来,我一直试图找到解决方案 我认为我的答案与上面的答案相比,性能较低
create table #month
(
id [int] IDENTITY(1,1) NOT NULL,
[month] varchar(3)
)
DBCC CHECKIDENT(#month, RESEED, 1)
insert into #month
values
('Jan'),
('Feb'),
('Mar'),
('Apr'),
('May'),
('Jun'),
('Jul'),
('Aug'),
('Sep'),
('Oct'),
('Nov'),
('Dec')
declare @id int
set @id=1
declare @month varchar(3)
declare @sql nvarchar(max)
set @sql=''
declare @order varchar(3)
while (@id<13)
BEGIN
set @month=(select [month] from #month where id=@id)
set @order=CONVERT(varchar(3),@id)
set @sql=@sql+'insert into #display
(
[Month],
[COUNT(FA)],
[COUNT(TPA)],
[COUNT(Gift)],
[ORDER]
)
select '''+ @month +''' AS [Month],
(select
COUNT(CONVERT(VARCHAR(3), DATENAME(MM,Created_Date), 100))
from FA
where CONVERT(VARCHAR(3), DATENAME(MM,Created_Date), 100)='''+ @month +''') [COUNT(FA)],
(select
COUNT(CONVERT(VARCHAR(3), DATENAME(MM,Created_Date), 100))
from TPA
where CONVERT(VARCHAR(3), DATENAME(MM,Created_Date), 100)='''+ @month +''') [COUNT(TPA)],
(select
COUNT(CONVERT(VARCHAR(3), DATENAME(MM,Created_Date), 100))
from Gift
where CONVERT(VARCHAR(3), DATENAME(MM,Created_Date), 100)='''+ @month +''') [COUNT(Gift)],
'''+ @order + ''' [Order]
'
set @id=@id+1 --Incrementing the month
END
exec sp_executesql @sql
print @sql
select [MONTH],
[COUNT(FA)],
[COUNT(TPA)],
[COUNT(Gift)]
from #display
order by convert(int,[ORDER])
创建表#月
(
id[int]标识(1,1)不为空,
[月份]瓦查尔(3)
)
DBCC CHECKIDENT(#月,重新设定种子,1)
插入#月份
价值观
(‘Jan’),
('Feb'),
(‘Mar’),
("Apr"),,
(‘五月’),
(‘Jun’),
(‘Jul’),
(‘八月’),
(‘Sep’),
(‘十月’),
(‘Nov’),
('Dec')
声明@id int
设置@id=1
声明@month varchar(3)
声明@sql nvarchar(最大值)
设置@sql=''
声明@order varchar(3)
当(@id我试图找到解决方案时,从上一次4小时开始
我认为我的答案与上面的答案相比,性能较低
create table #month
(
id [int] IDENTITY(1,1) NOT NULL,
[month] varchar(3)
)
DBCC CHECKIDENT(#month, RESEED, 1)
insert into #month
values
('Jan'),
('Feb'),
('Mar'),
('Apr'),
('May'),
('Jun'),
('Jul'),
('Aug'),
('Sep'),
('Oct'),
('Nov'),
('Dec')
declare @id int
set @id=1
declare @month varchar(3)
declare @sql nvarchar(max)
set @sql=''
declare @order varchar(3)
while (@id<13)
BEGIN
set @month=(select [month] from #month where id=@id)
set @order=CONVERT(varchar(3),@id)
set @sql=@sql+'insert into #display
(
[Month],
[COUNT(FA)],
[COUNT(TPA)],
[COUNT(Gift)],
[ORDER]
)
select '''+ @month +''' AS [Month],
(select
COUNT(CONVERT(VARCHAR(3), DATENAME(MM,Created_Date), 100))
from FA
where CONVERT(VARCHAR(3), DATENAME(MM,Created_Date), 100)='''+ @month +''') [COUNT(FA)],
(select
COUNT(CONVERT(VARCHAR(3), DATENAME(MM,Created_Date), 100))
from TPA
where CONVERT(VARCHAR(3), DATENAME(MM,Created_Date), 100)='''+ @month +''') [COUNT(TPA)],
(select
COUNT(CONVERT(VARCHAR(3), DATENAME(MM,Created_Date), 100))
from Gift
where CONVERT(VARCHAR(3), DATENAME(MM,Created_Date), 100)='''+ @month +''') [COUNT(Gift)],
'''+ @order + ''' [Order]
'
set @id=@id+1 --Incrementing the month
END
exec sp_executesql @sql
print @sql
select [MONTH],
[COUNT(FA)],
[COUNT(TPA)],
[COUNT(Gift)]
from #display
order by convert(int,[ORDER])
创建表#月
(
id[int]标识(1,1)不为空,
[月份]瓦查尔(3)
)
DBCC CHECKIDENT(#月,重新设定种子,1)
插入#月份
价值观
(‘Jan’),
('Feb'),
(‘Mar’),
("Apr"),,
(‘五月’),
(‘Jun’),
(‘Jul’),
(‘八月’),
(‘Sep’),
(‘十月’),
(‘Nov’),
('Dec')
声明@id int
设置@id=1
声明@month varchar(3)
声明@sql nvarchar(最大值)
设置@sql=''
声明@order varchar(3)
虽然(@idPlease更改问题中的表名。为什么如此?请查看您的输出并检查表名。我只是给用户一些提示,让用户清楚该字段显示表的记录总数。所以我只是写了它。否则我只想显示表名!好的,请更改问题中的表名。为什么如此?请参阅。)您的输出和检查表名。我只是让用户清楚地知道字段显示表的记录总数。所以我才写了它。否则我只想显示表名!好的,我知道了!这个查询有效!但是如果我只想显示那些有记录的月份名,意味着..如果所有表都没有e然后是12月的记录。..Dec Month不应显示。@INFOhUb只需将连接类型从skinny的查询从LEFT join
更改为internal join
Ohk我知道了!这个查询很有效!但是如果我只想显示那些有记录的月份名称,意味着..如果所有表在12月没有记录,那么..De不应显示c月。@INFOhUb只需将连接类型从skinny的查询从左连接更改为内部连接