Now I need to store the oMyClass object in the database for later use, at which point I would get it out of the database, cast it back to myClass, and be able to acess its properties, etc. My problem is that the classes that I am working with are not serializable, so I cannot store the objects as XML. Does anyone have an example of doing this programmatically with C# and ADO.NET. I am assuming that I would have to store it in a vabinary column, but how do I get it in there. Any help would be greatly appreciated. Thanks.
I need to grant select, insert, update, and delete permission to an object residing in Database "X" from a store procedure in database "Y". I have already tried USE database statement. Any suggestion. Thanks Maroof Khan
The device I'm working on has a filesystem on compact flash, but we're concerned about burning it up with excessive writes. One solution might be to keep the SQL database in the the object store, perhaps dumping a copy out to the CF as backup. Any pointers as to how to accomplish this? If we were to keep the db in a file on the CF, what's the SQL Server CE behavior for writing to the file? Does it write every time a record is created/updated, or is there any ability to control when the data is flushed to the file?
I have a VB-class object running inside MS Transaction server. A function inside this class makes use of a temp table when a user does a web-query on my server which gets some data from SQL 6.5. Problem is, although the temptable is destroyed at the end of the function, my TempDB in SQL gets gradually fuller with each query that runs.
Why does this happen. I cannot release any of the tempdb space already in use, so eventually the tempdb gets completely full and SQL stops running.
I am trying to access the TableAdapter object from my WebPage Class on the Page_Load event , so I can modify the Command.CommandTimeout. Unfortunately, I cannot find a way to have access to the TableAdater object.
I just realized recently that a database "XYZ" in the Object Explorer of my SQL Server Management Studio Express (SSMSE) is put in the Database Explorer of my VB 2005 Express for processing a Stored Procedure in executing the SELECT statements (not by using Input and/or Output Parameters) during the ADO.NET 2.0-VB 2005 Express programming, then the content of the database "XYZ" is not in the SSMSE. How can I return the database "XYZ" from the DataBase Explorer of VB 2005 Express back to the Object Explorer of SQL Server Management Studio Express (SSMSE) safely? Please help and advise.
Does any one has any clue for this error ? I did went through a lot of articles on this error but none helped . I am working in Visual studie 2005 and trying to upload image in sql database through a simple form. Here is the code
using System; using System.Data; using System.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient; using System.Web.Configuration; using System.IO; public partial class Binary_frmUpload : System.Web.UI.Page {protected void Page_Load(object sender, EventArgs e) { }protected void btnUpload_Click(object sender, EventArgs e) {if (FileUpload.HasFile == false) { // No file uploaded!lblUploadDetails.Text = "Please first select a file to upload..."; } else {string str1 = FileUpload.PostedFile.FileName; string str2 = FileUpload.PostedFile.ContentType; string connectionString = WebConfigurationManager.ConnectionStrings["GSGA"].ConnectionString; //Initialize SQL Server Connection SqlConnection con = new SqlConnection(connectionString); //Set insert query string qry = "insert into Officers (Picture,PictureType ,PicttureTitle) values(@ImageData, @PictureType, @PictureTitle)"; //Initialize SqlCommand object for insert. SqlCommand cmd = new SqlCommand(qry, con); //We are passing Original Image Path and Image byte data as sql parameters. cmd.Parameters.Add(new SqlParameter("@PictureTitle", str1)); cmd.Parameters.Add(new SqlParameter("@PictureType", str2));Stream imgStream = FileUpload.PostedFile.InputStream; int imgLen = FileUpload.PostedFile.ContentLength;byte[] ImageBytes = new byte[imgLen]; cmd.Parameters.Add(new SqlParameter("@ImageData", ImageBytes)); //Open connection and execute insert query. con.Open(); cmd.ExecuteNonQuery(); con.Close(); //Close form and return to list or images.
} } }
Object reference not set to an instance of an object. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.Source Error:
Line 32: Line 33: string str2 = FileUpload.PostedFile.ContentType; Line 34: string connectionString = WebConfigurationManager.ConnectionStrings["GSGA"].ConnectionString; Line 35: Line 36: //Initialize SQL Server Connection Source File: c:UsersManojDocumentsVisual Studio 2005WebSitesGSGABinaryfrmUpload.aspx.cs Line: 34 Stack Trace:
[NullReferenceException: Object reference not set to an instance of an object.] Binary_frmUpload.btnUpload_Click(Object sender, EventArgs e) in c:UsersManojDocumentsVisual Studio 2005WebSitesGSGABinaryfrmUpload.aspx.cs:34 System.Web.UI.WebControls.Button.OnClick(EventArgs e) +105 System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +107 System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7 System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11 System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5102
SP2 for SQL Server 2005 x64 has been less than happy for me.
The initial problem, mentioned in another thread, concerned SSIS client which stopped liking Data Flow components. It was solved by a removal and reinstallation of the client tools.
However, there now seems to be a problem with making use of the Teradata oledb provider within SSIS. Prior to the installation of SP2 there was no problem.
I create a new SSIS package Add a Data Flow component Within the data flow add an oledb source Create a new connection - using the Teradata oledb provider Test the connection (it works!) Use SQL something like "select * from some_teradata_table_on_the_TD_server" Click on columns, wait a second, a list of columns is returned Add a SQL Server destination (with a new SQL Server connection) Connect the two components Save the package
Click go The TD oledb source component turns bright red and the error is "class not registered"
I have uninstalled the TD oledb provider (and underlying TD components) and re-installed (32-bit and 64-bit) - no change
Hi, I want to call a dll from Stored procedure developed in SQL Server 2005 at configuration level 80. but when I execute the stored procedure I get the following error.
Error Source: ODSOLE Extended Procedure Description: Invalid class string
Code of stored procedure and vb.net class is given below:
Public Shared Sub LogToTextFile(ByVal LogName As String, ByVal newMessage As String) ' impersonate the calling user Dim newContext As System.Security.Principal.WindowsImpersonationContext newContext = SqlContext.WindowsIdentity.Impersonate() Try Dim w As StreamWriter = File.AppendText(LogName) LogIt(newMessage, w) w.Close() Catch Ex As Exception
Finally newContext.Undo() End Try End Sub End Class ===============================================================
STORED PROCEDURE Create PROCEDURE [dbo].[PPGenerateFile] AS
BEGIN Declare @retVal INT Declare @comHandler INT declare @errorSource nvarchar(500) declare @errorDescription nvarchar(500) declare @retString nvarchar(100)
-- Intialize the COM component EXEC @retVal = sp_OACreate 'PositivePay.class', @comHandler OUTPUT IF(@retVal <> 0) BEGIN --Trap errors if any EXEC sp_OAGetErrorInfo @comHandler,@errorSource OUTPUT, @errorDescription OUTPUT SELECT [error source] = @errorsource, [Description] = @errordescription Return END
-- Call a method into the component EXEC @retVal = sp_OAMethod @comHandler,'LogToTextFile',@retString OUTPUT, @LogName = 'D: ext.txt',@newMessage='Hello' IF (@retVal <>0 ) BEGIN EXEC sp_OAGetErrorInfo @comHandler,@errorSource OUTPUT, @errorDescription OUTPUT SELECT [error source] = @errorsource, [Description] = @errordescription Return END select @retString
I have created a sql login account called "webuser" and has given public role in my database. In my asp.net application i build connection string using above account and its password . We give permission on store procedure for for the above account to execute .We dont give table level permission for the above account . When we run the application with the above settings it runs fine on test server . However Now i have transfered the databse object to live server with its permissions . Now while I executing the aspx page , I am getting above error . I have checked that the store procedure has execute permission for webuser account and dbo(i.e SA) has all the permissions for all database objects . Still why i am getting error ? (Please note , the thing is working fine in test server)
Not sure if this is the right forum to post this question to, so if it's not, please accept my apologies.
I'm working in SQL Server 2005 with a database that was migrated to 2005 from SQL Server 2000. I have to alter a trigger on a table for some functionality changes, and when I modify the trigger and then access it through the application the database is working with, I receive this error:
There was a error in the [stored procedure name] procedure. Error Number: -2147217900 Error Description: [Microsoft][ODBC SQL Server Driver][SQL Server]The definition of object '[trigger name]' has changed since it was compiled.
[stored procedure name] and [trigger name] are where the actual names appear in the message.
I've tried running sp_recompile on the trigger, stored procedure, and table that are associated with this, and nothing works. I have dropped the trigger, which allows the save process to complete (but doesn't perform the required functionality, of course), and then re-created the trigger, but the error message still comes up. The compatibility level for the database is SQL Server 2000 (80) (as it was migrated from SQL Server 2000 as I mentioned above).
Has anyone seen this, and if so, how can I fix it?
Help! I have posted this before and I had hoped that the VS2005 SP1 would help my problem. It didn't. My code is shown below. I have dropped a sqlconnection, sqldataadapter and a strongly-typed dataset from the toolbox onto the component designer for my page and written my code. It compiles without any errors but at runtine I receive the system error "Object reference not set to an instance of an object." The error occurs at the first line where the sqldataadapter is mentioned. I have shufflled the code and the error still occurs at first mention of the dataadapter. I have set parameters to a simple string such as "myemail." It hasn't helped. I have used the "Dim" statement as "Dim DaAuthorLogin as System.Data.SqlClient.SqlDataadapter and Dim DaAuthorLogin as New ......) at the start of the private sub generated by the event requiring the data. Nothing helps. Here is my simple code to select data from a sqlserver 2000 database. Why do I continue to get this error? Partial Class AuthorLogin Inherits System.Web.UI.Page Protected WithEvents AuthorInformation As System.Web.UI.Page #Region " Web Form Designer Generated Code " 'This call is required by the Web Form Designer. <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent() Me.SqlSelectCommand1 = New System.Data.SqlClient.SqlCommand Me.DaAuthorLogin = New System.Data.SqlClient.SqlDataAdapter Me.MDData = New System.Data.SqlClient.SqlConnection Me.DsAuthorLogin = New MedicalDecisions.DsAuthorLogin CType(Me.DsAuthorLogin, System.ComponentModel.ISupportInitialize).BeginInit() ' 'SqlSelectCommand1 ' Me.SqlSelectCommand1.CommandText = "SELECT AuthorAlias, AuthorEmail, AuthorPassword, LastName, PreferredName" & Global.Microsoft.VisualBasic.ChrW(13) & Global.Microsoft.VisualBasic.ChrW(10) & "FRO" & _ "M T_Author" & Global.Microsoft.VisualBasic.ChrW(13) & Global.Microsoft.VisualBasic.ChrW(10) & "WHERE (AuthorEmail = @AuthorEmail) AND (AuthorPassword =" & _ " @AuthorPassword)" Me.SqlSelectCommand1.Connection = Me.MDData Me.SqlSelectCommand1.Parameters.AddRange(New System.Data.SqlClient.SqlParameter() {New System.Data.SqlClient.SqlParameter("@AuthorEmail", System.Data.SqlDbType.NVarChar, 50, "AuthorEmail"), New System.Data.SqlClient.SqlParameter("@AuthorPassword", System.Data.SqlDbType.NVarChar, 50, "AuthorPassword")}) ' 'DaAuthorLogin ' Me.DaAuthorLogin.SelectCommand = Me.SqlSelectCommand1 Me.DaAuthorLogin.TableMappings.AddRange(New System.Data.Common.DataTableMapping() {New System.Data.Common.DataTableMapping("Table", "T_Author", New System.Data.Common.DataColumnMapping() {New System.Data.Common.DataColumnMapping("AuthorAlias", "AuthorAlias"), New System.Data.Common.DataColumnMapping("AuthorEmail", "AuthorEmail"), New System.Data.Common.DataColumnMapping("AuthorPassword", "AuthorPassword"), New System.Data.Common.DataColumnMapping("LastName", "LastName"), New System.Data.Common.DataColumnMapping("PreferredName", "PreferredName")})}) ' 'MDData ' Me.MDData.ConnectionString = "Data Source=CIS1022DAVID;Initial Catalog=CGData;Integrated Security=True;Pooling" & _ "=False" Me.MDData.FireInfoMessageEventOnUserErrors = False ' 'DsAuthorLogin ' Me.DsAuthorLogin.DataSetName = "DsAuthorLogin" Me.DsAuthorLogin.SchemaSerializationMode = System.Data.SchemaSerializationMode.IncludeSchema CType(Me.DsAuthorLogin, System.ComponentModel.ISupportInitialize).EndInit() End Sub Friend WithEvents SqlSelectCommand1 As System.Data.SqlClient.SqlCommand Friend WithEvents MDData As System.Data.SqlClient.SqlConnection Friend WithEvents DaAuthorLogin As System.Data.SqlClient.SqlDataAdapter Friend WithEvents DsAuthorLogin As MedicalDecisions.DsAuthorLogin 'NOTE: The following placeholder declaration is required by the Web Form Designer. 'Do not delete or move it. Private designerPlaceholderDeclaration As System.Object Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) 'CODEGEN: This method call is required by the Web Form Designer 'Do not modify it using the code editor. InitializeComponent() End Sub #End Region Private Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) 'no code here End Sub Private Sub AuthorLoginRegister_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles AuthorLoginRegister.Click 'for new author registration Response.Redirect("AuthorInformation.aspx") End Sub Private Sub AuthorLoginBack_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles AuthorLoginBack.Click 'to navigate back Response.Redirect("MainPaths.aspx") End Sub Protected Sub AuthorLoginPassword_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles AuthorLoginPassword.TextChanged 'pass the parameters to the dataadapter and return dataset DaAuthorLogin.SelectCommand.Parameters("@AuthorEmail").Value = AuthorLoginEmail.Text DaAuthorLogin.SelectCommand.Parameters("@AuthorPassword").Value = AuthorLoginPassword.Text MDData.Open() DaAuthorLogin.Fill(DsAuthorLogin, "T_Author") MDData.Close() 'set session objects If DsAuthorLogin.T_Author.Rows.Count > 0 Then Session("AuthorAlias") = DsAuthorLogin.T_Author(0).AuthorAlias Session("LastName") = DsAuthorLogin.T_Author(0).LastName Session("PreferredName") = DsAuthorLogin.T_Author(0).PreferredName Response.Redirect("AuthorPaths.aspx") Else : AuthorLoginNotValid.Visible = True AuthorLoginEmail.Text = "" AuthorLoginPassword.Text = "" End If End Sub End Class
Can anybody know ,how can we add builtin functions(ROW_NUMBER()) of Sql Server 2005 into database library. I get this error when i used into storeprocedure : ROW_NUMBER() function is not recognized in store procedure. i used MS SQL SERVER 2005 , so i think "ROW_FUNCTION()" is not in MS SQL SERVER 2005 database library. I need to add that function into MS SQL SERVER 2005 database library. Can anbody know how we can add that function into MS SQL SERVER 2005 database library?
Just installed VS 2005 & SQLServer 2005 clients on my workstation. When trying to create a new Integration Services Project and start work in the designer receive the MICROSOFT VISUAL STUDIO 'Object reference not set to an instance of an object.' dialog box with message "Creating project 'Integration Services project1'...project creation failed."
Previously I had SQLServer 2000 client with the little VS tool that came with it installed. Uninstalled these prior to installing the 2005 tools (VS and SQLServer).
I'm not finding any information on corrective action for this error.
Hai Guys, I have a doubt Regarding SqlDataReader i can able to create object to Sqlconnection,Sqlcomand etc... but i am unable to create object for SqlDataReader ? Logically i understand that SqldataReader a way of reading a forward-only stream of rows from a SQL Server database. This class cannot be inherited. sqlDatareader belongs to which class is it sealed or static class? can we create own class like SqldataReader ....... Reply Me ...... if any one know the answer..............
I am using the 3-tiered architecture design (presentation, business laws, and data acess layers). I am stuck on how to send the image the user selects in the upload file control to the BLL and then to the DAL because the DAL does all the inserts into the database. I would like to be able to check the file type in the BLL to make sure the file being uploaded is indeed a picture. Is there a way I can send the location of the file to the BLL, check the filetype, then upload the file and have the DAL insert the image into the database? I have seen examples where people use streams to upload the file directly from their presentation layer, but I would like to keep everything seperated in the three classes if possible. I also wasn't sure what variable type the image would be in the function in the BLL that receive the image from the PL. If there are any examples or tips anyone can give me that would be appreciated.
Each time I press submit to insert data into the database I receive the following message. I use the same code on another page and it works fine. Here is the error:
Object reference not set to an instance of an object. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
Line 125: MyCommand.Parameters("@Balance").Value = txtBalance.Text Line 126: Line 127: MyCommand.Connection.Open() Line 128: Line 129: Try
[NullReferenceException: Object reference not set to an instance of an object.] CreditRepair.CreditRepair.Vb.Creditor_Default.btnSaveAdd_Click(Object sender, EventArgs e) in c:inetpubwwwrootCreditRepairCreditor_Default.aspx.vb:127 System.Web.UI.WebControls.Button.OnClick(EventArgs e) System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) System.Web.UI.Page.ProcessRequestMain()
Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click
If (Page.IsValid) Then
Dim DS As DataSet Dim MyCommand As SqlCommand
Dim AddAccount As String = "insert into AccountDetails (Account_ID, Report_ID, Balance) values (@Account_ID, @Report_ID, @Balance)"
MyCommand = New SqlCommand(AddAccount, MyConnection)
I am stuck with a SSIS package and I can€™t work out. Let me know what steps are the correct in order to solve this. At first I have just a Flat File Source and then Script Component, nothing else.
Error:
[Script Component [516]] Error: System.InvalidCastException: Unable to cast COM object of type 'System.__ComObject' to class type 'System.Data.SqlClient.SqlConnection'. Instances of types that represent COM components cannot be cast to types that do not represent COM components; however they can be cast to interfaces as long as the underlying COM component supports QueryInterface calls for the IID of the interface. at Microsoft.SqlServer.Dts.Pipeline.ScriptComponentHost.HandleUserException(Exception e) at Microsoft.SqlServer.Dts.Pipeline.ScriptComponentHost.AcquireConnections(Object transaction) at Microsoft.SqlServer.Dts.Pipeline.ManagedComponentHost.HostAcquireConnections(IDTSManagedComponentWrapper90 wrapper, Object transaction)
Script Code (from Script Component):
' Microsoft SQL Server Integration Services user script component ' This is your new script component in Microsoft Visual Basic .NET ' ScriptMain is the entrypoint class for script components
Imports System Imports System.Data.SqlClient Imports System.Math Imports Microsoft.SqlServer.Dts.Pipeline.Wrapper Imports Microsoft.SqlServer.Dts.Runtime.Wrapper
Public Class ScriptMain Inherits UserComponent
Dim nDTS As IDTSConnectionManager90 Dim sqlConnecta As SqlConnection Dim sqlComm As SqlCommand Dim sqlParam As SqlParameter
Public Overrides Sub Input0_ProcessInputRow(ByVal Row As Input0Buffer)
Dim valorColumna As String Dim valorColumna10 As Double
valorColumna = Row.Column9.Substring(1, 1)
If valorColumna = "N" Then valorColumna10 = -1 * CDbl(Row.Column10 / 100) Else valorColumna10 = CDbl(Row.Column10 / 100) End If
When I add a new item to project in VS2005: Project-->Add New Item --> Sql Database I got a error msg "object reference not set to an instance of an object" after click "Add" button. The SQL Server Express is running. How do I fix this problem?
I would like to take a training class for DTS 2005 soon. Can someone please recommend a training class which can help me to upgrade existing dts 2000 to 2005.. and of course more depth to dts 2005..... I would appreciate your help...
Hi, I have xmldocument type that stores xml data. I would like to able to store that data in sql server 2005 as a xml data type. How can I accomplish this using ado sqlcommand? XmlDocument xdoc = new XmlDocument();SqlConnection conn = new SqlConnection(System.Web.Configuration.WebConfigurationManager.ConnectionStrings["Test"].ConnectionString);conn.Open();SqlCommand cmd = new SqlCommand(); cmd.Connection = conn;cmd.CommandType = CommandType.StoredProcedure;cmd.CommandText = "spStoreApp";cmd.Parameters.AddWithValue("@PersId", "222-22-2222");cmd.Parameters.AddWithValue("@AppData", xdoc);try{cmd.ExecuteNonQuery();Response.Write("Storage of application successful");}catch (SqlException sqlx){Response.Write(sqlx.Message);}conn.Close();thanks in advance.
Under sql 2000 I needed to register my sql server before I could begin working with it under Enterprise Manager. Under sql 2005 I usually setup the server under "Object explorer" and work with it from there. So what does registering a server under sql 20005 do? Why is it needed?
I have a web server running fine together with an sql 2005 db. I use asp as my web server programming language and want to be able to display images that are stored in the database.
My question of course is how do I put images, for example an image called "image1.gif" into the database?
After having stored the images in the db, I guess that the are displayed on my web pages the same way as all text information (by writing something like <%=rs("image_column")%> ).... Anyway first I need help with how to store imgs in the database...
I create websit (ASP.NET) using Visual Studio.Net 2005 and SQL Server 2005 express. I'm working in Thailand I want to store information such as user name in Thai format into SQL Server 2005 Express. I already try but doesn't work.
hi to all !!!! i want to store the image file from user click in SQL Server , so how can i ?? How can i Store image (.jpg , .gif) in a database . pls send me Code or any thing which helps me ...
Im trying run a stored procedure, but I am getting the following message when trying to execute it.
Implicit conversion from data type datetime to int is not allowed. Use the CONVERT function to run this query.
which seems strange, as there is no integer going to a datetime field. Also, it does not return the value that is incorrect, nor the parameter that is failing. If there is anyway to view this in VS 2005 Team suite, please let me know.
It should also be noted that when I execute this sproc from within sql management studio, it executes fine.
This is the stored procedure im trying to execute...
in my .net app, all the datetime objects are valid dates, so I could not see why this would be generating the error that it is, so I ran the SQL Profiler, and this was the output. Again, i cannot see where im going wrong...
please note, I have seperated the output from the single slab of text, making sure I didnt remove anything...
I want to store arabic values and dates in sql server database.
I am using visual basic 2005 with sql server 2005. I entered the the arabic values through visual basic forms. But when i open the database table, i see the values in english format.
I change my regional settings of the operating system is arabic (platform vista).
