我在SQL Server 2008中有一个存储过程。
此存储过程（让我们称之为sp1），接受ID（字符串），FromDate，ToDate并返回col1，col2，col3
我试图改变sp1以接受IDList（ID1，ID2，...，IDn），但这是我的想法。
我需要帮助创建一个接受IDList，FromDate，ToDate的新SP（让我们称之为SP2），然后使用id列表循环并调用SP1并将结果联合起来。
我希望我很清楚...
这是原始的SP，如果你能接受UnitIMEIList它也会很棒：
CREATE PROCEDURE [dbo].[GetGeneratorsReport]
@UnitIMEI varchar(15),
@DateFrom [datetime],
@DateTo [datetime]
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
DECLARE @mycur CURSOR
DECLARE @GeneratorId int
DECLARE @FieldId int
DECLARE @SensorName nvarchar(50)
DECLARE @StateNO bit
DECLARE @ReadingDate [datetime]
DECLARE @Value bit
DECLARE @FirstRun bit
DECLARE @SDate [datetime]
DECLARE @UnitName nvarchar(50)
--SET @UnitIMEI='358484004085845'
SET @UnitName = (SELECT TOP 1 NickName FROM Vehicles WHERE UnitIEMI = @UnitIMEI)
IF EXISTS (SELECT * FROM tempdb.dbo.sysobjects WHERE ID = OBJECT_ID(N'tempdb..#GeneratorsTempTable')) BEGIN DROP TABLE #GeneratorsTempTable END
CREATE TABLE #GeneratorsTempTable (
SensorId int,
UnitIMEI varchar(15),
UnitName nvarchar(50),
SensorName nvarchar(50),
FromDate [datetime],
ToDate [datetime]
)
SET @mycur = CURSOR
FOR
SELECT 104+[GPIO], [Name], [StateNO]
FROM [VehicleTrack].[dbo].[UnitSensors]
WHERE [UnitIMEI]=@UnitIMEI AND Type=3
OPEN @mycur
FETCH NEXT FROM @mycur INTO @FieldId, @SensorName, @StateNO
WHILE @@FETCH_STATUS = 0
BEGIN
SET @FirstRun = 1
SET @SDate = NULL
DECLARE messageCur CURSOR
FOR
SELECT ProtocolMessages.Date, convert(bit, AdditionalReadings.Value) AS Value
FROM ProtocolMessages INNER JOIN
AdditionalReadings ON ProtocolMessages.Id = AdditionalReadings.MessageId
WHERE (ProtocolMessages.UnitIEMI = @UnitIMEI) AND AdditionalReadings.FieldId = @FieldId AND ProtocolMessages.Date >= @DateFrom AND ProtocolMessages.Date <= @DateTo
ORDER BY ProtocolMessages.Date
OPEN messageCur
FETCH NEXT FROM messageCur INTO @ReadingDate, @Value
WHILE @@FETCH_STATUS = 0
BEGIN
IF (@Value > 1)
SET @Value = @Value - 2
IF (@FirstRun = 1 AND @SDate IS NULL)
BEGIN -- the first run
SET @FirstRun = 0 -- flip the bit for all future runs
IF (@Value = @StateNO)
SET @SDate = @ReadingDate
END
ELSE -- all subsequent runs after the first
BEGIN
IF (@SDate IS NULL)
BEGIN
IF (@Value = @StateNO)
SET @SDate = @ReadingDate
END
ELSE
BEGIN
IF (@Value <> @StateNO)
BEGIN
-- Store
INSERT INTO #GeneratorsTempTable ([SensorId], [UnitIMEI], [UnitName], [SensorName] , [FromDate], [ToDate]) VALUES (@FieldId - 104, @UnitIMEI, @UnitName, @SensorName, @SDate, @ReadingDate)
SET @SDate = NULL
END
END
END
FETCH NEXT FROM messageCur INTO @ReadingDate, @Value
END
CLOSE messageCur
DEALLOCATE messageCur
IF (@Value = @StateNO)
BEGIN
INSERT INTO #GeneratorsTempTable ([SensorId], [UnitIMEI], [UnitName], [SensorName] , [FromDate], [ToDate]) VALUES (@FieldId - 104, @UnitIMEI, @UnitName, @SensorName, @SDate, GETUTCDATE())
END
FETCH NEXT FROM @mycur INTO @FieldId, @SensorName, @StateNO
END
DEALLOCATE @mycur
SELECT * FROM #GeneratorsTempTable
END
GO
谢谢
答案 0 :(得分：-1)
为了其他Google用户的利益：）
我自己做了一切！
我为此创建了一个名为“SandBox”的数据库。
创建一个示例表：
USE [SandBox]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[tblStudentGrades](
[StudentGradeID] [bigint] IDENTITY(1,1) NOT NULL,
[StudentID] [bigint] NOT NULL,
[TestID] [bigint] NOT NULL,
[TestDate] [date] NOT NULL,
[TestGrade] [int] NULL
) ON [PRIMARY]
GO
放一些数据（如果你很懒:) :)：
USE [SandBox]
GO
SET IDENTITY_INSERT [dbo].[tblStudentGrades] ON
INSERT [dbo].[tblStudentGrades] ([StudentGradeID], [StudentID], [TestID], [TestDate], [TestGrade]) VALUES (1, 1, 1, CAST(0x6E390B00 AS Date), 60)
INSERT [dbo].[tblStudentGrades] ([StudentGradeID], [StudentID], [TestID], [TestDate], [TestGrade]) VALUES (2, 1, 2, CAST(0x70390B00 AS Date), 80)
INSERT [dbo].[tblStudentGrades] ([StudentGradeID], [StudentID], [TestID], [TestDate], [TestGrade]) VALUES (3, 2, 1, CAST(0x6E390B00 AS Date), 90)
INSERT [dbo].[tblStudentGrades] ([StudentGradeID], [StudentID], [TestID], [TestDate], [TestGrade]) VALUES (4, 2, 2, CAST(0x70390B00 AS Date), 100)
INSERT [dbo].[tblStudentGrades] ([StudentGradeID], [StudentID], [TestID], [TestDate], [TestGrade]) VALUES (5, 3, 1, CAST(0x6E390B00 AS Date), 95)
INSERT [dbo].[tblStudentGrades] ([StudentGradeID], [StudentID], [TestID], [TestDate], [TestGrade]) VALUES (6, 3, 2, CAST(0x0F230100 AS Date), 98)
SET IDENTITY_INSERT [dbo].[tblStudentGrades] OFF
创建接受单个ID的SP： *这只是一个示例...不要忘记它 - 我知道我可以发送多个ID作为参数......
USE [SandBox]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE PROCEDURE [dbo].[spGetStudentGrades]
@StudentID bigint
AS
BEGIN
SELECT * FROM [SandBox].[dbo].[tblStudentGrades]
WHERE StudentID = @StudentID;
END
GO
现在为新的SP允许多次执行上述SP（正是我所寻找的）：
USE [SandBox]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE PROCEDURE [dbo].[spGetMultiple]
@StudentIDList varchar(100)
AS
BEGIN
DECLARE @StudentID VARCHAR(10)
--------------------------------------------------
-- Create a temporary table to hold the results:
--------------------------------------------------
IF EXISTS (SELECT * FROM tempdb.dbo.sysobjects WHERE ID = OBJECT_ID(N'tempdb..#tblTemporaryGrades')) BEGIN DROP TABLE #tblTemporaryGrades END
CREATE TABLE #tblTemporaryGrades (
StudentGradeID bigint,
StudentID bigint,
TestID bigint,
TestDate date,
TestGrade int
)
--------------------------------------------------
-- Add a comma to the end of the ID list,
-- so the last ID will be also included.
SET @StudentIDList = @StudentIDList + ',' ;
---------------------------------------------------
WHILE CHARINDEX(',', @StudentIDList) > 0
BEGIN
-- STEP 1 :
-- Extract the current StudentID we want to get from the original SP
SET @StudentID = SUBSTRING(@StudentIDList, 1, ( CHARINDEX(',', @StudentIDList) - 1 ))
PRINT '@StudentID = ' + @StudentID;
-- STEP 2 :
-- Gather the data using the original SP
INSERT INTO #tblTemporaryGrades EXEC spGetStudentGrades @StudentID
-- STEP 3 :
-- Update the student ID to exclude the last StudentID we worked with
SET @StudentIDList = SUBSTRING(@StudentIDList, CHARINDEX(',', @StudentIDList) + 1, LEN(@StudentIDList))
PRINT 'NEW @StudentIDList = ' + @StudentIDList;
END
SELECT * FROM #tblTemporaryGrades
END
GO
感觉就像测试一样吗？ 来吧：
USE [SandBox]
GO
DECLARE @return_value int
EXEC @return_value = [dbo].[spGetMultiple]
@StudentIDList = N'3,2,1'
SELECT 'Return Value' = @return_value
GO