Stored procedures 存储过程不更新数据库
问题: 数据库没有更新,但我不确定它在哪里 我在过去使用过很多,但我不明白为什么这不起作用。如果我能了解如何在存储过程上运行错误测试,我想这会有所帮助 测试: 在.aspx代码中的存储过程请求后,我将变量传递给标签,以检查值是否存在(代码中的左侧) 在存储过程中将int更改为varchar 查询: 如何解决这个问题,然后如何运行测试以在将来发现问题 存储过程:Stored procedures 存储过程不更新数据库,stored-procedures,Stored Procedures,问题: 数据库没有更新,但我不确定它在哪里 我在过去使用过很多,但我不明白为什么这不起作用。如果我能了解如何在存储过程上运行错误测试,我想这会有所帮助 测试: 在.aspx代码中的存储过程请求后,我将变量传递给标签,以检查值是否存在(代码中的左侧) 在存储过程中将int更改为varchar 查询: 如何解决这个问题,然后如何运行测试以在将来发现问题 存储过程: USE [DATABASE] GO /****** Object: StoredProcedure [dbo].[spChangeVa
USE [DATABASE]
GO
/****** Object: StoredProcedure [dbo].[spChangeValue] Script Date: 11/08/2015 12:02:13 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
ALTER PROCEDURE [dbo].[spRiskRatingChange]
@ActionID int,
@EmployeeID int,
@NewRating varchar(10)
AS
DECLARE @DateChanged AS nvarchar(max)
SET @DateChanged = GETDATE()
DECLARE @OldRating AS nvarchar(max)
DECLARE @OldComments AS nvarchar(max)
DECLARE @EmployeeName AS nvarchar(max)
SET @OldRating =
(
SELECT OverallRiskCategory FROM TblAsbestos WHERE ID = @ActionID
)
SET @OldComments =
(
SELECT Comments FROM TblAsbestos WHERE ID = @ActionID
)
SET @EmployeeName =
(
SELECT UserFirstName + ' ' + UserSurname FROM SystemUsers WHERE ID = @EmployeeID
)
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
UPDATE TblAsbestos SET OverallRiskCategory = @NewRating, RiskCategory = @NewRating,
Comments= ('Rating changed from ' + RTRIM(@OldRating) + ' to '
+ RTRIM(@NewRating) + 'By ' + @EmployeeName + ' on ' + @DateChanged + ' -- ' + @OldComments)
WHERE ID = @ActionID
END
在.aspx.vb中编写代码
Dim connection As SqlConnection
Dim command As New SqlCommand
Dim ds As New DataSet
Dim ConnectionString1 As String = System.Configuration.ConfigurationManager.ConnectionStrings("VINCI_SQL").ToString()
connection = New SqlConnection(ConnectionString1)
connection.Open()
With command
.Connection = connection
.CommandText = "spRiskRatingChange" 'include audit names
.CommandType = CommandType.StoredProcedure
.Parameters.Clear()
.Parameters.AddWithValue("@ActionID", Session("ActionID").ToString)
.Parameters.AddWithValue("@EmployeeID", Session.Item("EmployeeID").ToString)
.Parameters.AddWithValue("@NewRating", ddOverallRiskCategoryEdit.SelectedValue)
.ExecuteNonQuery()
lblErrorMessageRatings.Visible = True
lblErrorMessageRatings.Text = "Action ID: " & Session("ActionID").ToString
lblErrorMessageRatings.Text = lblErrorMessageRatings.Text & " EmployeeID: " & Session("EmployeeID").ToString
lblErrorMessageRatings.Text = lblErrorMessageRatings.Text & " NewRating: " & ddOverallRiskCategoryEdit.SelectedValue
阅读以下内容:
而不是
.Parameters.AddWithValue("@ActionID", Session("ActionID").ToString)
试一试
我假设你传递的是一个int值
.Parameters.AddWithValue执行隐式类型转换,这可能是导致问题的原因如果直接在sql中运行它会发生什么?我添加了如下值:@ActionID int='11829',@EmployeeID int='143',@NewRating varchar(10)='Test'但数据库中没有更改。在存储过程中使用
@NewRating
的唯一时间是在生成注释时——这是有意的吗?您是否使用了Visual Studio SSDT或SQL Server Management Studio中的存储过程调试器?请尝试在存储过程中硬编码actionID,而不是在代码中硬编码,然后查看它是否正确谢谢,我删除了“(int)”,因为这在它运行之前导致了一个错误。把那部分去掉行吗,行吗?!哦,是的,对不起,我把我的VB和c混合了-我想这是VBC中的CInt()。谢谢,我以后会记住的!
.Parameters.Add("@ActionId",SqlDbType.Int)
.Parameters("@ActionId").Value = CInt(Session("ActionId"))