C# 如何在变量中存储sql查询

我有一个查询，它返回staff TeachingID，它是staff教授的课程的id

我的问题是:

如何存储这些值因为它返回的值超过1个，我可以在sql server或c中使用数组吗

然后我想获取这些值并将其传递给其他查询，如下所示：

选择考试。考试日期，其中ExamID=@GetExamID

SELECT Staff_Teaching.TeachingID FROM   Staff_Teaching INNER JOIN
          Staff ON Staff_Teaching.StaffID = Staff.StaffID WHERE        (Staff.StaffID = @StaffID) AND (Staff_Teaching.SemesterID = @SemesterID))

我可以使用foreach或array吗？我正在使用asp.NETC

这就是我想做的

`@GetExamID` is where I want to pass these values to be checked 

我有5个查询，第一个将得到teachingid 1值 第二个将获得coursesid大于1的值 然后，接下来的两名学生将学习coursesid，并获得考试日期和时间

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然后我想检查最后一次查询中是否有任何结果

SQL Server中没有类似的数组。您可以使用临时表临时存储此信息

BEGIN TRANSACTION
SET @GetTeachingID =(SELECT        Staff_Teaching.TeachingID
FROM          Staff_Teaching INNER JOIN
              Staff ON Staff_Teaching.StaffID = Staff.StaffID
WHERE        (Staff.StaffID = @StaffID) AND (Staff_Teaching.SemesterID = @SemesterID))
COMMIT 

BEGIN TRANSACTION
SELECT  Course_Department.CourseID
FROM            Course_Department INNER JOIN
                         Exam ON Course_Department.CourseID = Exam.ExamID INNER JOIN
                         ExamSchedule ON Exam.ExamID = ExamSchedule.ExamID INNER JOIN
                         Staff_Teaching ON Course_Department.TeachingID = Staff_Teaching.TeachingID
WHERE        (Staff_Teaching.TeachingID = @GetTeachingID)

COMMIT 


BEGIN TRANSACTION
SET @GetExamDate=(SELECT Exam.Date  
FROM Exam
WHERE (ExamID = @GetExamID))
COMMIT 

BEGIN TRANSACTION
SET @GetExamTime=(SELECT Exam.BegainTime  
FROM Exam
WHERE (ExamID = @GetExamID))
COMMIT 

BEGIN TRANSACTION
SELECT        ExamScheduleID
FROM          Exam INNER JOIN
              ExamSchedule ON Exam.ExamID = ExamSchedule.ExamID
WHERE        (ExamSchedule.ExamScheduleID = @ExamScheduleID) AND (Exam.Date LIKE @GetExamDate) AND (Exam.BegainTime<=@GetExamTime)
COMMIT 



END

传为

SELECT Staff_Teaching.TeachingID
INTO #Temp
Staff_Teaching INNER JOIN
      Staff ON Staff_Teaching.StaffID = Staff.StaffID WHERE                    
     (Staff.StaffID = @StaffID) AND (Staff_Teaching.SemesterID = @SemesterID))

你可以这样写

SELECT Exam.Date  FROM Exam WHERE (ExamID IN SELECT * FROM #Temp)

并将@GetExamID作为逗号分隔的字符串1,2,4,5

可以使用以下命令将int数组转换为逗号分隔的字符串

declare @query = '(SELECT Exam.Date  FROM Exam WHERE (ExamID IN ('+@GetExamID+') )'

exec @query 

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请适当标记您的问题。您使用的是MySQL还是SQL Server？检查表是否有示教栏？如何保存第一个查询中的值以将其传递给@GetExamID？！

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