Question

我正在尝试创建一个报告，表格中有五个字段定义种族。要清理报告，我试图在报告中创建一个基于其创建数据的列。为了澄清，让我举一个例子。

当前字段：

RaceAfroAmer，RaceAmerIndian，Race Caucasion，Race Hispanic，RaceOriental

每个字段都填充1或0

在报告中，我们需要一个根据这些字段的值填充的竞赛列，即

种族

如果这5个字段中的任何一个的值等于1，那么该值等于该字段名称（如果RaceAfroAmer = 1，则该行的竞争列填充RaceAfroAmer，如果不是，则检查下一个字段等等）。 / p>

这是否需要创建一个新表，Race字段是自动填充的，然后我们从该表中提取竞争值？可以直接用SSRS编程完成吗？

为了进一步澄清这一点，我在报告的完整原始查询下面插入，实质上我想要做的就是采取这个确切的查询并添加一个竞赛列。

WITH HR_CTE (seq, EmployeeId, Name, JobTitle, EffectiveDate, SocSecNbr, State, DateOfBirth, DateHired, SalaryType, CpnyId)
AS
(SELECT ROW_NUMBER() OVER(PARTITION BY E.[EmployeeId] ORDER BY J.EffectiveDate DESC) AS seq,
E.EmployeeID, E.Name, J.JobTitle, J.EffectiveDate, E.SocSecNbr, E.State, E.DateOfBirth, E.DateHired, S.SalaryType, E.CpnyId
FROM XHR_Employee E
JOIN XHR_JobHistory J
    ON E.[EmployeeId] = J.[EmpId]
JOIN XHR_SalaryHist S
    ON E.[EmployeeId] = S.[EmpId])

SELECT EmployeeID, Name, JobTitle, EffectiveDate, SocSecNbr, State, DateOfBirth, DateHired, SalaryType, CpnyId
FROM HR_CTE
WHERE seq = 1
AND (CpnyID IN (@CpnyID))
AND (JobTitle IN (@JobTitle))
AND (SalaryType IN (@SalaryType))
ORDER BY Name

当我将其更改为包含case语句和Race字段时，我在关键字FROM

附近的语法中出现错误

WITH HR_CTE (seq, EmployeeId, Name, JobTitle, EffectiveDate, SocSecNbr, State, DateOfBirth, DateHired, SalaryType, CpnyId, RaceAfroAmer, RaceAmerIndian, RaceCaucasian, RaceHispanic, RaceOriental, RaceOther01, RaceOther02)
AS
(SELECT ROW_NUMBER() OVER(PARTITION BY E.[EmployeeId] ORDER BY J.EffectiveDate DESC) AS seq,
E.EmployeeID, E.Name, JobTitle, J.EffectiveDate, E.SocSecNbr, E.State, E.DateOfBirth, E.DateHired, S.SalaryType, E.CpnyId, E.RaceAfroAmer, E.RaceAmerIndian, E.RaceCaucasian, E.RaceHispanic, E.RaceOriental, E.RaceOther01, E.RaceOther02
FROM XHR_Employee E
JOIN XHR_JobHistory J
    ON E.[EmployeeId] = J.[EmpId]
JOIN XHR_SalaryHist S
    ON E.[EmployeeId] = S.[EmpId])

SELECT EmployeeID, Name, JobTitle, EffectiveDate, SocSecNbr, State, DateOfBirth, DateHired, SalaryType, CpnyId, 
CASE
    WHEN RaceAfroAmer = 1 THEN 'Black/African American'
    WHEN RaceAmerIndian = 1 THEN 'American Indian/Alaska Native'
    WHEN RaceCaucasian = 1 THEN 'White'
    WHEN RaceHispanic = 1 THEN 'Hispanic/Latino'
    WHEN RaceOriental = 1 THEN 'Asian'
    WHEN RaceOther01 = 1 THEN 'Native Hawaii/Pacific Islander'
    WHEN RaceOther02 = 1 THEN 'Two Or More Races'
END AS Race,
FROM HR_CTE
WHERE seq = 1
ORDER BY Name

工作代码：

（我将AS Race从CASE语句的底部取出，并将'Race'=添加到select语句的末尾。

WITH HR_CTE (seq, EmployeeId, Name, JobTitle, EffectiveDate, SocSecNbr, State, DateOfBirth, DateHired, SalaryType, CpnyId, RaceAfroAmer, RaceAmerIndian, RaceCaucasian, RaceHispanic, RaceOriental, RaceOther01, RaceOther02)
AS
(SELECT ROW_NUMBER() OVER(PARTITION BY E.[EmployeeId] ORDER BY J.EffectiveDate DESC) AS seq,
E.EmployeeID, E.Name, JobTitle, J.EffectiveDate, E.SocSecNbr, E.State, E.DateOfBirth, E.DateHired, S.SalaryType, E.CpnyId, E.RaceAfroAmer, E.RaceAmerIndian, E.RaceCaucasian, E.RaceHispanic, E.RaceOriental, E.RaceOther01, E.RaceOther02
FROM XHR_Employee E
JOIN XHR_JobHistory J
    ON E.[EmployeeId] = J.[EmpId]
JOIN XHR_SalaryHist S
    ON E.[EmployeeId] = S.[EmpId])

SELECT EmployeeID, Name, JobTitle, EffectiveDate, SocSecNbr, State, DateOfBirth, DateHired, SalaryType, CpnyId, 'Race'=
CASE
    WHEN RaceAfroAmer = 1 THEN 'Black/African American'
    WHEN RaceAmerIndian = 1 THEN 'American Indian/Alaska Native'
    WHEN RaceCaucasian = 1 THEN 'White'
    WHEN RaceHispanic = 1 THEN 'Hispanic/Latino'
    WHEN RaceOriental = 1 THEN 'Asian'
    WHEN RaceOther01 = 1 THEN 'Native Hawaii/Pacific Islander'
    WHEN RaceOther02 = 1 THEN 'Two Or More Races'
END
FROM HR_CTE
WHERE seq = 1
ORDER BY Name

Answer 1

执行此操作的最简单方法是使用查询中的case子句：

select ...
       case
           when RaceAfroAmer = 1 then 'RaceAfroAmer'
           when RaceAmerIndian = 1 then 'RaceAmerIndian'
           when RaceCaucasion = 1 then 'RaceCaucasion'
           when RaceHispanic = 1 then 'RaceHispanic'
           when RaceOriental = 1 then 'RaceOriental'
       end as RaceDescription,
       ...

Answer 2

Mark的答案很好，并且将逻辑保留在SQL查询中。但是“如果可以直接用SSRS编程完成吗？”意味着OP希望将此保留在报表中而不是查询中，那么有几种方法可以将其放入SSRS的VB公式中。

您可以为数据集创建计算字段，也可以只在单元格中使用公式：

=SWITCH(
 Fields!RaceAfroAmer.Value = 1, "RaceAfroAmer",
 Fields!RaceAmerIndian.Value = 1, "RaceAmerIndian",
 Fields!RaceCaucasion.Value = 1, "RaceCaucasion",
 Fields!RaceHispanic.Value = 1, "'RaceHispanic",
 Fields!RaceOriental.Value = 1, "RaceOriental")

或者，您可以在单元格中创建多个占位符，并根据字段值更改这些占位符的可见性。

根据其他字段值填充字段

2 个答案: