sql - 30/60/90 日合計クエリ

Question

次のクエリがあります。請求書と時間エントリを取得し、各クライアントの EHR (実効時給) を月単位で計算します。私が得る必要があるのは：

    company ,agreement ,lastMonthEHR,60dayEHR,90dayEHR,6MoEHR,12MoEHR,LifeEHR
    CompanyA,AgreementB,       30.45,   27.76,   55.22, 30.75,  30.00,  25.00 

編集：

フォーマットで申し訳ありません。もっとうまくフォーマットできるかどうか見てみます。次のクエリは、EHR が計算された月次請求書を返します。

    SELECT a.AGR_Name, AGR_Type.AGR_Type_Desc, c.Company_Name, ap.InvoiceDate,ap.Revenue,ap.Hours,ap.EHR
    FROM AGR_Header AS a INNER JOIN Company AS c ON a.Company_RecID = c.Company_RecID
    LEFT JOIN AGR_Type ON a.AGR_Type_RecID = AGR_Type.AGR_Type_RecID
    LEFT JOIN (
      SELECT ar.AGR_Header_RecID,ar.Revenue,ac.InvoiceDate,ISNULL (ac.Hours, 0) AS Hours,
      CASE
           WHEN ac.Hours IS NULL THEN (ar.Revenue)
           WHEN ac.Hours <= 1 THEN (ar.Revenue)
           ELSE CAST (ar.Revenue / NULLIF (ac.Hours,0) as NUMERIC (9,2))
      END AS 'EHR'
      FROM (
        SELECT ah.AGR_Header_RecID,
        DATEADD(month,ai.Month_Nbr-1,dateadd(year,ai.Year_Nbr-2000,'2000-01-01')) as InvoiceDate,
        CAST (ai.Monthly_Inv_Amt AS NUMERIC (9, 2)) AS Revenue
        FROM
        dbo.AGR_Header AS ah INNER JOIN
        dbo.AGR_Invoice_Amt AS ai ON ah.AGR_Header_RecID = ai.AGR_Header_RecID
        GROUP BY ah.AGR_Header_RecID, ai.Month_Nbr, ai.Year_Nbr) as ar
      LEFT JOIN (
        SELECT ah.AGR_Header_RecID,SUM(te.Hours_Actual) AS Hours, dateadd(month, datediff(month,0,te.Date_start),0) as InvoiceDate
        FROM
        dbo.Time_Entry AS te INNER JOIN 
        dbo.AGR_Header AS ah ON te.Agr_Header_RecID = ah.AGR_Header_RecID
        WHERE (te.Agr_Header_RecID IS NOT NULL) AND (te.Agr_Hours IS NOT NULL)
       GROUP BY ah.AGR_Header_RecID, dateadd(month, datediff(month,0,te.Date_Start),0)) AS ac ON ar.AGR_Header_RecID = ac.AGR_Header_RecID
    AND ar.InvoiceDate = ac.InvoiceDate) AS ap ON ap.AGR_Header_RecID = a.AGR_Header_RecID
    ORDER BY Company, Agreement, InvoiceDate