将三列引用到sql server 2000中另一个表中的同一列

Question

我有一个关于SQL Server 2000 的问题，我需要从数据库中获取报告。我有一个名为Automation 的数据库，其中包含一组表来处理我们应用程序的票务流程查询。

我需要从数据库中提取一份报告，该报告应包含票号和用户信息，例如谁输入、接收、编辑、查看了该票。

我需要数据库中的这些字段

Ticketnumber
billnumber
companyname
enteredby(username)
entereddate
recievedby(username)
recieveddate
editedby(Employeename)
editeddate
reviewedby(ReviewerName)
revieweddate
postedby(Managername)
posteddate

我有三张桌子
1>VPP_VendorBilldetails

BillentryID | ticketnumber | billnumber | VENDORNAME,BILLNUMBER,COSTCENTERNAME,BILLAMOUNT,TICKETDATE,BILLDATE | companyID(not companyname) | billdate | Enteredby(userid)| entereddate | recievedby(userid) | recieveddate | editedby(userid) | editeddate | reviewedby(userid) | revieweddate | postedby(userid) | posteddate

2> Users

UserID | employeeID | employeename |loginID| Password | usertype | status

3> VPP_ClientCompanyDetails :

companyid | companyname | companyaddress | status

我已经写了这个查询，但是我得到了所有三个类别的相同员工姓名：

  SELECT CLIENTCOMPANYNAME,  TICKETNUMBER,VENDORNAME,BILLNUMBER,COSTCENTERNAME,BILLAMOUNT,TICKETDATE,BILLDATE,
    RECIEVEDDATE,EMPLOYEENAME AS EXECUTIVENAME,
        VPP_VENDORBILLDETAILS.MODIFIEDDATE,
        EMPLOYEENAME AS REVIEWERNAME,EMPLOYEENAME AS POSTEDBY,POSTEDDATE,ERRORCODE,
        IMPACTCODE,ROOTCAUSE,REVIEWERREMARKS
        FROM 
    VPP_VENDORBILLDETAILS 

    INNER JOIN 
    VPP_CLIENTCOMPANYDETAILS 
    ON VPP_VENDORBILLDETAILS.BILLENTEREDCOMPANYID = VPP_CLIENTCOMPANYDETAILS.CLIENTCOMPANYID

    INNER JOIN USERS 
    ON VPP_VENDORBILLDETAILS.MODIFIEDBY = USERS.USERID

    WHERE CONVERT(VARCHAR(12),CONVERT(DATETIME,POSTEDDATE,103),101) 
        BETWEEN CONVERT(DATETIME,CONVERT(VARCHAR(12),getdate()-7,100),101) 
        AND CONVERT(DATETIME,CONVERT(VARCHAR(12),getdate()-1,100),101)

        AND VPP_CLIENTCOMPANYDETAILS.STATUS = 1 AND VPP_VENDORBILLDETAILS.STATUS = 1 AND USERS.STATUS = 1 AND ERRORCODE IS NOT NULL AND TALLYID IS NOT NULL

        ORDER BY CLIENTCOMPANYNAME ASC

请检查并帮助我解决此问题

请帮我提取上述表格的报告..

Answer 1

试试这个：

SELECT CLIENTCOMPANYNAME,  TICKETNUMBER,VENDORNAME,BILLNUMBER,COSTCENTERNAME,BILLAMOUNT,TICKETDATE,BILLDATE,
    RECIEVEDDATE,U1.EMPLOYEENAME AS EXECUTIVENAME,
        VPP_VENDORBILLDETAILS.MODIFIEDDATE,
        U2.EMPLOYEENAME AS REVIEWERNAME,U3.EMPLOYEENAME AS POSTEDBY,POSTEDDATE,ERRORCODE,
        IMPACTCODE,ROOTCAUSE,REVIEWERREMARKS
        FROM 
    VPP_VENDORBILLDETAILS 

    INNER JOIN 
    VPP_CLIENTCOMPANYDETAILS 
    ON VPP_VENDORBILLDETAILS.BILLENTEREDCOMPANYID = VPP_CLIENTCOMPANYDETAILS.CLIENTCOMPANYID

    INNER JOIN USERS U1
    ON VPP_VENDORBILLDETAILS.recievedby = U1.USERID

    INNER JOIN USERS U2
    ON VPP_VENDORBILLDETAILS.MODIFIEDBY = U2.USERID

    INNER JOIN USERS U3
    ON VPP_VENDORBILLDETAILS.postedby = U3.USERID


    WHERE CONVERT(VARCHAR(12),CONVERT(DATETIME,POSTEDDATE,103),101) 
        BETWEEN CONVERT(DATETIME,CONVERT(VARCHAR(12),getdate()-7,100),101) 
        AND CONVERT(DATETIME,CONVERT(VARCHAR(12),getdate()-1,100),101)

        AND VPP_CLIENTCOMPANYDETAILS.STATUS = 1 AND VPP_VENDORBILLDETAILS.STATUS = 1 AND USERS.STATUS = 1 AND ERRORCODE IS NOT NULL AND TALLYID IS NOT NULL

        ORDER BY CLIENTCOMPANYNAME ASC