我在 SQL Server 2005 中工作。我有一个存储过程，它创建一个临时表并从数据库表中提取数据。该临时表包含付款人类别的名称、余额/信用、时间段（月）和余额的“年龄”（当前、逾期 30 天、逾期 60 天等）。
我现在需要做的是按保险公司名称和年龄对这些数据进行分组/求和。例如，Aetna 的每条记录都减少为一条记录。该记录具有当前余额字段、逾期 30 天余额字段、逾期 60 天余额字段等。Aetna 的每个当前余额应汇总在一个 Aetna 记录的第一个字段中。Aetna 的每 30 天逾期余额应在一条 Aetna 记录的第二个字段中求和，依此类推。结果表应如下所示：
Payor Class Cur 30 60 90 120 150
Aetna 1234.00 987.00 0.00 123.00 456.00 0.00
Blue Cross 3216.00 2100.00 321.00 0.00 212.00 401.00
Cigna 56123.00 30887.00 0.00 0.00 0.00 0.00
Kaiser 21003.00 1806.00 904.00 305.00 0.00 0.00
我当前的存储过程从应用程序 (VB.NET) 获取开始日期，计算周期（即 30 天，60 天等），然后将所有余额记录拉入临时表。有一些预先确定的分组（医疗保险、医疗补助、私人），但任何不属于这些组之一的都被分配到一个付款人类别，该付款人类别只是付款人的姓名（例如 Aetna、Blue Cross 等）。
我的问题是我事先不知道可能有多少不同的保险公司记录，所以我不确定如何根据该记录和年龄进行分组/求和。如果可以避免的话，我宁愿不为每个循环做一个。任何帮助将非常感激！
当前的：
CREATE PROCEDURE [AgedReport]
@VCurrStart DATETIME
AS
BEGIN
SET NOCOUNT ON;
BEGIN TRY
CREATE TABLE #t_temp
(
payor_class VARCHAR(30),
bal DECIMAL(11, 2),
period DATETIME,
age VARCHAR(10)
)
CREATE TABLE #t_class
(
payor_class VARCHAR(30),
balType VARCHAR(10),
balTotal DECIMAL(11,2),
balAdv DECIMAL(11,2),
balCurr DECIMAL(11,2),
bal30 DECIMAL(11,2),
bal60 DECIMAL(11,2),
bal90 DECIMAL(11,2),
bal120 DECIMAL(11,2),
bal150 DECIMAL(11,2),
bal180 DECIMAL(11,2),
bal210 DECIMAL(11,2),
bal240 DECIMAL(11,2),
bal270 DECIMAL(11,2)
)
DECLARE @VCurrEnd DATETIME
DECLARE @V30Start DATETIME
DECLARE @V60Start DATETIME
DECLARE @V90Start DATETIME
DECLARE @V120Start DATETIME
DECLARE @V150Start DATETIME
DECLARE @V180Start DATETIME
DECLARE @V210Start DATETIME
DECLARE @V240Start DATETIME
SET @VCurrEnd = DATEADD(DAY,-1,(DATEADD(MONTH,1,@VCurrStart)))
SET @V30Start = DATEADD(month,-1,@VCurrStart)
SET @V60Start = DATEADD(month,-2,@VCurrStart)
SET @V90Start = DATEADD(month,-3,@VCurrStart)
SET @V120Start = DATEADD(month,-4,@VCurrStart)
SET @V150Start = DATEADD(month,-5,@VCurrStart)
SET @V180Start = DATEADD(month,-6,@VCurrStart)
SET @V210Start = DATEADD(month,-7,@VCurrStart)
SET @V240Start = DATEADD(month,-8,@VCurrStart)
INSERT INTO #t_temp
(
payor_class,
bal,
period,
age
)
SELECT
DISTINCT
(CASE
(CASE WHEN p.payor_specific = 1 THEN
(SELECT TOP 1 ar_account
FROM payor_seg ps
WHERE ps.payor_code = b.payor_code
AND ps.start_date <= @VCurrEnd
ORDER BY ps.start_date DESC)
ELSE (SELECT TOP 1 ar_account
FROM plan_seg pls
WHERE pls.plan_code = b.plan_code
AND pls.start_date <= @VCurrEnd
ORDER BY pls.start_date DESC) END)
WHEN '123100' THEN 'Private'
WHEN '123110' THEN 'Medicaid'
WHEN '123120' THEN 'Medicaid'
WHEN '123130' THEN 'Medicaid'
WHEN '123140' THEN 'Medicare A'
WHEN '123150' THEN 'Medicare B'
ELSE (CASE WHEN p.payor_specific = 1 THEN
(CASE WHEN (SELECT TOP 1 payor_name
FROM payor p
WHERE p.payor_code = b.payor_code) IS NULL THEN
'UNKNOWN'
WHEN (SELECT TOP 1 payor_name
FROM payor p
WHERE p.payor_code = b.payor_code) = '' THEN
'UNKNOWN'
ELSE '*' + SUBSTRING(p.payor_name,1,19) END)
WHEN p.payor_specific = 0 THEN
(CASE WHEN (SELECT TOP 1 plan_description
FROM plans pl
WHERE pl.plan_code = b.plan_code) IS NULL THEN
'UNKNOWN'
WHEN (SELECT TOP 1 plan_description
FROM plans pl
WHERE pl.plan_code = b.plan_code) = '' THEN
'UNKNOWN'
ELSE '*' + SUBSTRING(pl.plan_description,1,19) END)
ELSE 'UNKNOWN'
END) END),
b.bal,
b.period,
(SELECT CASE
WHEN period > @VCurrStart THEN 'ADV'
WHEN period = @VCurrStart THEN 'CUR'
WHEN period = @V30Start THEN '30'
WHEN period = @V60Start THEN '60'
WHEN period = @V90Start THEN '90'
WHEN period = @V120Start THEN '120'
WHEN period = @V150Start THEN '150'
WHEN period = @V180Start THEN '180'
WHEN period = @V210Start THEN '210'
WHEN period = @V240Start THEN '240'
WHEN period < @V240Start THEN '270'
END)
FROM balance b WITH(NOLOCK)
SELECT * FROM #t_temp
END TRY
BEGIN CATCH
END CATCH
END