Question

我有创建临时表并稍后用于进一步选择的SQL

; WITH tblOrder AS
                (
                SELECT ROW_NUMBER() OVER(ORDER BY I.IsHead DESC, I.InsureeID ASC) AS RowNo, I.InsureeID FROM tblInsuree I
                INNER JOIN(SELECT FamilyID FROM tblInsuree WHERE ValidityTo IS NULL AND CHFID = 1111 AND IsHead = 1) H ON H.FamilyID=I.FamilyID
                WHERE I.ValidityTo IS NULL 
                )

                SELECT I.CHFID InsuranceNumber, I.OtherNames, I.LastName, I.DOB BirthDate, I.Gender, F.Poverty PoveryStatus, C.ConfirmationTypeCode ConfirmationType, F.ConfirmationNo ConfirmationNo, F.FamilyAddress PermanentAddress, I.Marital MaritalStatus, I.CardIssued BeneficiaryCard, l.LocationCode CurrentVillageCode, I.CurrentAddress CurrentAddress, P.Profession, I.Education, I.Phone PhoneNumber, I.Email, I.TypeOfId IdentificationType, I.passport IdentificationNumber, HF.HFCode FSPCode  FROM tblInsuree I
                INNER JOIN tblOrder O ON O.InsureeID = I.InsureeID
                INNER JOIN tblFamilies F ON F.FamilyID = I.FamilyID
                LEFT OUTER JOIN tblLocations L ON L.LocationId = F.LocationId
                LEFT OUTER JOIN tblConfirmationTypes C ON C.ConfirmationTypeCode = F.ConfirmationType
                LEFT OUTER JOIN tblFamilyTypes G ON G.FamilyTypeCode= F.FamilyType
                LEFT OUTER JOIN tblProfessions P ON P.ProfessionId= I.Profession
                LEFT OUTER JOIN tblHF HF ON HF.HfID= I.HFID
                WHERE
                O.RowNo = 1
                AND F.ValidityTo IS NULL
                AND I.ValidityTo IS NULL
                AND L.ValidityTo IS NULL
                AND HF.ValidityTo IS NULL

我想用LINQ替换代码

; WITH tblOrder AS
                (
                SELECT ROW_NUMBER() OVER(ORDER BY I.IsHead DESC, I.InsureeID ASC) AS RowNo, I.InsureeID FROM tblInsuree I
                INNER JOIN(SELECT FamilyID FROM tblInsuree WHERE ValidityTo IS NULL AND CHFID = 1111 AND IsHead = 1) H ON H.FamilyID=I.FamilyID
                WHERE I.ValidityTo IS NULL 
                )

您如何将这部分代码转移到LINQ，然后再与其余代码一起使用？

Answer 1

看起来像这样：

   var tblOrder = (from I in dbContext.tblInsuree
                      join H in dbContext.tblInsuree.Where(a => a.ValidityTo == null && a.CHFID == 1111 && a.IsHead == 1) on I.FamilyID equals H.FamilyID
                  where I.ValidityTo == null
                  orderby I.IsHead descending, I.InsureeID
                  select I.InsureeID)
                      .ToArray()
                      .Select((InsureeID, RowNo) => new {RowNo = RowNo + 1, InsureeID })
                      .ToArray();

根据@NetDev的评论进行编辑

使用LINQ的临时表

1 个答案: