我有一个需要转动并遇到问题的查询。
SQL Server的版本是2005年和2008年。
查询源自公用表表达式
DECLARE
@cols AS NVARCHAR(MAX),
@query AS NVARCHAR(MAX),
@in_iYearFrom int, @in_iYearTo int,
@in_iMonthFrom int, @in_iMonthTo int,
@in_vsPlanID varchar(100)
@cols AS NVARCHAR(MAX),
@query AS NVARCHAR(MAX),
@in_iYearFrom int, @in_iYearTo int,
@in_iMonthFrom int, @in_iMonthTo int,
@in_vsPlanID varchar(100)
SELECT
@in_iYearFrom = 2012, @in_iYearTo = 2013, @in_iMonthFrom = 11, @in_iMonthTo = 2, @in_vsPlanID = '25,28'
select @cols = STUFF(
(SELECT DISTINCT
',' + QUOTENAME(Convert(varchar(4),Year(b.run_date)) + ', ' + DateName(month,b.run_date)) AS run_date
FROM tblBill b
WHERE b.plan_id IN (SELECT * FROM dbo.fnStringToTable(@in_vsPlanID,','))
AND Year(b.run_date) * 100 + MONTH(b.run_date) >= @in_iYearFrom * 100 + @in_iMonthFrom
AND Year(b.run_date) * 100 + MONTH(b.run_date) <= @in_iYearTo * 100 + @in_iMonthTo
GROUP BY b.run_date
ORDER BY run_date
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
SET @query = N'
;WITH cteBills (total_premium, run_month, run_year, plan_id) AS
(
SELECT
SUM(Round(ebs.employee_premium,2) + Round(ebs.employer_premium,2) +
Round(ebs.ee_tax_prov,2) + Round(ebs.er_tax_prov,2) +
Round(ebs.ee_tax_fed,2) + Round(ebs.er_tax_fed,2) +
Round(ebs.ee_tax_hst,2) + Round(ebs.er_tax_hst,2)
) AS total_premium,
Month(b.run_date), Year(b.run_date), b.plan_id
FROM EmpBillStatement ebs
INNER JOIN tblBillStatementBenefit bsb ON bsb.billstatementbenefit_id = ebs.billstatementbenefit_id
INNER JOIN tblBillStatement bs ON bs.billstatement_id = bsb.billstatement_id
INNER JOIN tblBill b ON b.bill_id = bs.bill_id
WHERE b.plan_id IN (SELECT * FROM dbo.fnStringToTable(@vsPlanID, '',''))
AND Year(b.run_date) * 100 + MONTH(b.run_date) >= @iYearFrom * 100 + @iMonthFrom
AND Year(b.run_date) * 100 + MONTH(b.run_date) <= @iYearTo * 100 + @iMonthTo
AND b.confirmed_bill = 1
GROUP BY b.plan_id, Month(b.run_date), Year(b.run_date)
),
cteBillsAdj (total_adj, run_month, run_year, plan_id) AS
(
SELECT
SUM(
Round(ISNULL(adjust_cost_er,0),2) +
Round(ISNULL(adjust_cost_ee,0),2) +
Round(ISNULL(adjust_tax_ee_prov,0),2) +
Round(ISNULL(adjust_tax_er_prov,0),2) +
Round(ISNULL(adjust_tax_ee_hst,0),2) +
Round(ISNULL(adjust_tax_er_hst,0),2) +
Round(ISNULL(adjust_tax_ee_fed,0),2) +
Round(ISNULL(adjust_tax_er_fed,0),2)
) AS total_premium,
Month(b.run_date), Year(b.run_date), b.plan_id
FROM tblBillAdjustmentBenefit e
INNER JOIN tblBillAdjustment ba ON (ba.billadjustment_id = e.billadjustment_id)
INNER JOIN tblBillStatementBenefit bsb ON bsb.billstatementbenefit_id = e.billstatementbenefit_id
INNER JOIN tblBillStatement bs ON bs.billstatement_id = bsb.billstatement_id
INNER JOIN tblBill b ON b.bill_id = bs.bill_id
WHERE b.plan_id IN (SELECT * FROM dbo.fnStringToTable(@vsPlanID, '',''))
AND Year(b.run_date) * 100 + MONTH(b.run_date) >= @iYearFrom * 100 + @iMonthFrom
AND Year(b.run_date) * 100 + MONTH(b.run_date) <= @iYearTo * 100 + @iMonthTo
AND b.confirmed_bill = 1
GROUP BY b.plan_id, Month(b.run_date), Year(b.run_date)
)
select plan_id, ' + @cols + '
from
(
SELECT
b.plan_id,
(Convert(varchar(4),b.run_year) + '', '' + DateName(month,CAST(''1900-'' + Convert(varchar(2),b.run_month) + ''-01'' AS DATETIME))) AS billdate,
ISNULL(b.total_premium,0) + ISNULL(a.total_adj,0) AS total
FROM cteBills b
LEFT JOIN cteBillsAdj a
ON a.run_month = b.run_month
AND b.run_year = a.run_year
AND b.plan_id = a.plan_id
) d
pivot
(
sum(total)
for billdate in (' + @cols + ')
) piv;
'
execute sp_executesql @query, N'@iYearFrom int, @iYearTo int, @iMonthFrom int, @iMonthTo int, @vsPlanID varchar(100)',
@in_iYearFrom, @in_iYearTo, @in_iMonthFrom, @in_iMonthTo, @in_vsPlanID;
数据显示如下
plan_id billdate total
----------- ------------------------------------ -------------
25 2012, November 60117.56000
25 2012, December 61515.17000
25 2013, January 60791.62000
25 2013, February 60745.29000
28 2012, November 1564.69000
28 2012, December 1564.69000
28 2013, January 1564.69000
28 2013, February 1590.44000
我需要它采用这种格式
plan_id 2012, November 2012, December 2013, January 2013, February
-----------------------------------------------------------------------------
25 60117.56000 61515.17000 60791.62000 60745.29000
28 1564.69000 1564.69000 1564.69000 1590.44000
可以有更多的plan_id和更多的日期。
提前谢谢
答案 0 :(得分：13)
由于您希望将数据从行转换为列，因此您需要使用PIVOT函数。如果您的数字或已知值有限，则可以对查询进行硬编码：
select plan_id, [2012, November], [2012, December], [2013, January], [2013, February]
from
(
SELECT
b.plan_id,
(Convert(varchar(4),b.run_year) + ', ' + DateName(month,CAST('1900-' + Convert(varchar(2),b.run_month) + '-01' AS DATETIME))) AS billdate,
ISNULL(b.total_premium,0) + ISNULL(a.total_adj,0) AS total
FROM cteBills b
LEFT JOIN cteBillsAdj a
ON a.run_month = b.run_month
AND b.run_year = a.run_year
AND b.plan_id = a.plan_id
) d
pivot
(
sum(total)
for billdate in ([2012, November], [2012, December], [2013, January], [2013, February])
) piv;
但是如果你有一个未知数量的值，那么你需要实现动态SQL：
DECLARE @cols AS NVARCHAR(MAX),
@query AS NVARCHAR(MAX)
select @cols = STUFF((SELECT ',' + QUOTENAME(Convert(varchar(4),b.run_year) + ', ' + DateName(month,CAST('1900-' + Convert(varchar(2),b.run_month) + '-01' AS DATETIME))) )
from cteBills
group by b.run_year, b.run_month
order by b.run_year, b.run_month
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
set @query = 'SELECT plan_id, ' + @cols + '
from
(
SELECT
b.plan_id,
(Convert(varchar(4),b.run_year) + '', '' + DateName(month,CAST(''1900-'' + Convert(varchar(2),b.run_month) + ''-01'' AS DATETIME))) AS billdate,
ISNULL(b.total_premium,0) + ISNULL(a.total_adj,0) AS total
FROM cteBills b
LEFT JOIN cteBillsAdj a
ON a.run_month = b.run_month
AND b.run_year = a.run_year
AND b.plan_id = a.plan_id
) x
pivot
(
sum(total)
for billdate in (' + @cols + ')
) p '
execute sp_executesql @query;