Updating A Record: ExecuteNonQuery
Apr 10, 2008
I'm using VB.Net 2008 with SQL Compact 3.5. After trying forever, I finally got my app to open a retrieve a record from a table. Now, when I try to update the record, I get an error on the ExecuteNonQuery statement. The error says I am "attempting to read or write protected memory". The code works perfectly with an Access database.
Here is the code I am using:
Dim objConnection As Data.OleDb.OleDbConnection
Dim objCommand As Data.OleDb.OleDbCommand
Dim sConnection As String
Dim sTableName As String
Try
'Set Table Name
sTableName = "Settings"
'Build SQL and Connection strings
'sConnection = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & mstrDataPath
sConnection = "Provider=Microsoft.SQLSERVER.CE.OLEDB.3.5;Data Source=" & mstrDataPath
objConnection = New Data.OleDb.OleDbConnection(sConnection)
'Create the UpdateCommand
objCommand = New Data.OleDb.OleDbCommand("UPDATE " & sTableName & " SET " & _
"OwnerName = ?, " & _
"Address1 = ?, " & _
"Address2 = ?, " & _
"City = ?, " & _
"State = ?, " & _
"ZipCode = ?, " & _
"Phone = ?, " & _
"EmailAddress = ? ", objConnection)
objCommand.Parameters.Add(New Data.OleDb.OleDbParameter)
objCommand.Parameters(0).Value = mstrOwnerName
objCommand.Parameters.Add(New Data.OleDb.OleDbParameter)
objCommand.Parameters(1).Value = mstrAddress1
objCommand.Parameters.Add(New Data.OleDb.OleDbParameter)
objCommand.Parameters(2).Value = mstrAddress2
objCommand.Parameters.Add(New Data.OleDb.OleDbParameter)
objCommand.Parameters(3).Value = mstrCity
objCommand.Parameters.Add(New Data.OleDb.OleDbParameter)
objCommand.Parameters(4).Value = mstrState
objCommand.Parameters.Add(New Data.OleDb.OleDbParameter)
objCommand.Parameters(5).Value = mstrZipCode
objCommand.Parameters.Add(New Data.OleDb.OleDbParameter)
objCommand.Parameters(6).Value = mstrPhone
objCommand.Parameters.Add(New Data.OleDb.OleDbParameter)
objCommand.Parameters(7).Value = mstrEmailAddress
objConnection.Open()
objCommand.ExecuteNonQuery()
objConnection.Close()
objCommand.Dispose()
UpdateRecord = True
Catch objException As Exception
UpdateRecord = False
MessageBox.Show(objException.ToString, "Error")
End Try
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Apr 7, 2008
Hi,
We're running a Sage CRM install with a SQL Server 2000 database at the back end. We're using the Sage web services API for updating data and a JDBC connection to retrieve data as it's so much quicker.
If I retrieve a record using the JDBC connection and then try and update the same record through the web services, the query times out as if the record is locked for updates. Has anyone experienced anything similar or know what I'm doing wrong? If I just use DriverManager.getConnection() to establish the connection instead of the datasource, and then continue with the same code I don't get these record locking problems. Please find more details below.
Thanks,
Sarah
The JDBC provider for the datasource is a WebSphere embedded ConnectJDBC for SQL Server DataSource, using an implementation type of 'connection pool datasource'. We are using a container managed J2C authentication alias for logging on.
This is running on a Websphere Application Server v6.1.
Code snippet - getting the record thru JDBC:
DataSource wsDataSource = serviceLocator.getDataSource("jdbc/dsSQLServer");
Connection wsCon = wsDataSource.getConnection();
// wsCon.setAutoCommit(false); //have tried with and without this flag - same results
Statements stmt = wsCon.createStatement();
String sql = "SELECT * FROM Person where personID = 12345";
ResultSet rs = stmt.executeQuery(sql);
if(rs.next()){
System.out.println(rs.getString("lastName"));
}
if (rs != null){
rs.close();
}
if (stmt != null) {
stmt.close();
}
if (wsCon != null) {
wsCon.close();
}
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Nov 17, 2004
Hello, I'm new to SQL, I need to HtmlEncode a column in all my records in a table, how can i construct my sql string? I have the following...
Cmd = "UPDATE articulos SET DescripcionCorta = HtmlEncode(DescripcionCorta) WHERE codigo='x'"
All I need is to Encode my "DescripcionCorta" Field.
Regards.
Roberto.
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Jun 9, 2008
Hi all, I'm new to SQL and have been trying to update a record in a table, something I imagine would be quite simple. The record holds a INT value and I wish to test the value to see if it is greater than 70, if it is....reset the value to 1
I have tried various methods, aiming at using a stored procedure that will run once a day at midnight.
Any help would be great.
Abbo
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Sep 23, 2007
Hello
I need an alarm or raise an event from SQL Server after updating to get it in .net.
I use SQL Server 2005 Express Edition and vb.net2 for my programming language.
Suppose that in a windows form I have a grid and I'm working with this page
another client is working with this same page .He is editing the information of
a record of a grid and save it in database so I want to give an alarm or an event
that raise from SQL Server (for example in a trigger) , what can I do?
Thanks.
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Mar 23, 2008
Hi, I have a problem, it is that when I try to update a record in my SQL server database, it is not updated and I recieve no error messages. This is the code behind the update button. The stored procedure is "sqlupdate".
Code Snippet
Dim ListingID As String = Request.QueryString("id").ToString
Dim con As New SqlConnection(ListingConnection)
Dim cmd As New SqlCommand("sqlupdate", con)
cmd.CommandType = CommandType.StoredProcedure
Dim id As SqlParameter = cmd.Parameters.Add("@id", SqlDbType.UniqueIdentifier)
id.Direction = ParameterDirection.Input
id.Value = ListingID
Dim PlaceName As SqlParameter = cmd.Parameters.Add("@PlaceName", SqlDbType.VarChar)
PlaceName.Direction = ParameterDirection.Input
PlaceName.Value = PlaceNameTB.Text
Dim Location As SqlParameter = cmd.Parameters.Add("@Location", SqlDbType.VarChar)
Location.Direction = ParameterDirection.Input
Location.Value = LocationTB.Text
Dim PropertyType As SqlParameter = cmd.Parameters.Add("@PropertyType", SqlDbType.VarChar)
PropertyType.Direction = ParameterDirection.Input
PropertyType.Value = PropertyTypeTB.Text
Dim Description As SqlParameter = cmd.Parameters.Add("@Description", SqlDbType.VarChar)
Description.Direction = ParameterDirection.Input
Description.Value = DescriptionTB.Text
Try
con.Open()
cmd.ExecuteNonQuery()
con.Close()
Catch ex As Exception
End Try
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Jan 27, 2008
Hello, i currently have a gridview component displaying data from a SQLSERVER2005 database. I have created an 'edit' hyperlink on each record so that when pressed, the primary key of a record is sent in the querystring to another page when pressed. example http://localhost/Prog/EditAppointment.aspx?AppointmentId=1
In the edit page, i have dragged and dropped a sqldatasource that contains the select and update statements. i would now like to use textboxes and dropdowns to display the data for the particular record selected (in this case appointmentid=1). however i dont want to use a formview or automated component, just to drag and drop the textboxes myself. how do i bind the textboxes in the HTML code to the data from the select statement? My current select parameters look as follows.
<SelectParameters>
<asp:QueryStringParameter Name="AppointmentId" QueryStringField="AppointmentId" Type="Int32" />
<asp:ControlParameter ControlID="Textbox1" Name="PatientNo" PropertyName="Text" Type="String" />
</SelectParameters>
Perhaps there is an error in my select parameters or does the problem lay elsewhere? Any help would be appreicated.
Thanks,
James.
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Oct 1, 2004
The process of adding a column with DEFAULT (0) to a table that has 15million records takes a despicable amount of time (too much time) and the transaction log of the database grew to an unacceptable size. I would like to accomplish the same task using this procedure:
·Add the column to the table with null value.
·Loop through the table (500000 records at a time) and SET the value in the newly added column to 0.
·Issue a commit statement after each batch
·Issue a checkpoint statement after each batch.
·Alter the table and SET the column to NOT Null DEFAULT (0)
Here is my Sample script
ALTER TABLE EMPLOYEE ADD EZEVALUE NUMERIC (9,6) NULL
Go
Loop
UPDATE EMPLOYEE SET EZEVALUE = 0
Commit Tan
CHECKPOINT
END (Repeat the loop until the rows in EMPLOYEE have the value 0)
Go
ALTER TABLE EMPLOYEE ALTER COLUMN EZEVALUE NUMERIC (9,6) NOT NULL DEFAULT (0)
My problem is with the loop section of this script. How do I structure the loop section of this script to loop through the employee table and update the EZEVALUE column 500000 rows at a time, issue a Commit Tran and a CHECKPOINT statement until the whole table has been updated. Does anyone out there know how to accomplish this task? Any information would be greatly appreciated.
Thanks in advance
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Sep 24, 2007
Hi People,
hope someone can help me out here with a little problem.
Basically i've go a asp.net page which has a listbox on. This list box is populated from a SQL database table with the datetime of the a selected field. Thus in the list box you get a list of strings looking like this "24/09/07 12:58"
Also on the page is a submit button, and some other editing textboxes. The main issue here is the when the submit button is used i get the currently selected listbox timedate string and then pass this along with other items to update a record in the database based on the datetime in the listbox control.
Below is how i get the string from the listbox control
Dim except_time As DateTime
except_time = DropDownList1.SelectedValue
The expect_time is then passed to store procedure along with some other vars, which looks like this
-- =============================================-- Author: Lee Trueman-- Create date: 1st Sept 2007-- =============================================CREATE PROCEDURE [dbo].[spExcept_UpdateData] -- Add the parameters for the stored procedure here @validated bit, @update_time datetime, @except_time datetimeASBEGIN -- SET NOCOUNT ON added to prevent extra result sets from -- interfering with SELECT statements. SET NOCOUNT ON
-- Insert statements for procedure here UPDATE exceptions SET validated = @validated, update_time = @update_time WHERE (except_time = @except_time)END
So validated and update_time should be updated when except_time is equal to @except_time
My problem is that the database never updates. If i debug the asp.net page the watch var shows the datetime in US format (I.e "09/24/07 12:58"), if this is true then this would explain why when it is passed to the stored proc nothing gets updated, as there would not be a date match.
can anyone see any silly mistakes i'm doing here ????
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Oct 18, 2004
I am trying to write a stored procedure that updates a value in a table based on the sort order. For example, my table has a field "OfferAmount". When this field is updated, I need to resort the records and update the "CurrRank" field with values 1 through whatever. As per my question marks below, I am not sure how to do this.
Update CurrRank = ??? from tblAppKitOffers
where appkitid = 3 AND (OfferStatusCode = 'O' OR OfferStatusCODE = 'D')
ORDER BY tblAppKitOffers.OfferAmount Desc
All help is greatly appreciated.
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Sep 30, 2004
I need to update one row in a SQL Server 6.5 DB from a row in SQL 2000 server DB. What would be the best way to do this?
I have my 2000 server defined as a Remote Server in 6.5, however I get the error message:
contains more than the maximum number of prefixes. The maximum is 2.
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Mar 23, 2008
Hi, I need help with updating a record. When I run the following code underneath the update button, the record does not update and I get no error message. Anyone have any ideas?
Code Snippet
Dim ListingID As String = Request.QueryString("id").ToString
Dim Description As String = DescriptionTB.Text
Dim PlaceName As String = PlaceNameTB.Text
Dim Location As String = LocationTB.SelectedValue
Dim PropertyType As String = LocationTB.SelectedValue
Dim Price As Integer = PriceTB.Text
Dim con As New SqlConnection(ListingConnection)
Dim sql As String = "Update Listings SET Description = ?, PlaceName = ?, Location = ?, PropertyType = ?, Price = ? WHERE ListingID = ?"
Dim cmd As New SqlCommand(Sql, con)
cmd.Parameters.AddWithValue("Description", Description)
cmd.Parameters.AddWithValue("PlaceName", PlaceName)
cmd.Parameters.AddWithValue("Location", Location)
cmd.Parameters.AddWithValue("PropertyType", PropertyType)
cmd.Parameters.AddWithValue("Price", Price)
Try
con.Open()
cmd.ExecuteNonQuery()
con.Close()
Catch ex As Exception
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Aug 19, 2006
I created a package in SSIS to export data from mutiple SQL server tables to a single flat file. Once the export is completed i need to update 2 tables ( a batch table and a history table) In the batch table I need to insert a record with batch # (system generated),batch date, status( success/failed), record count( no of records in the flat file), batch filename). In the history table, i need to insert a record for each of the rows in the flat file with the foll info. batch number,datetime,status(success/failed)
My question is how do I get the batch status,record count, batchfilename for batch table update and how do i get to update the history table.
BTW, i am executing this package as a SQL Server Agent job.
I am new to Integration Services and feel lost.
Any help ?
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Dec 7, 2006
Hi,
I am currently using VC++/Cli 2005. In a project, I'm using a DataGridView control to show records from a SQL Express 2005 table. Instead of updating a specific item directly within DataGridView control, I would like to open a new form and allow user to update selected record/item within that form. The reason to update this way is conditionned by the fact that I have 3 levels of detail as following:
Level 0 Level 1 Level 2
1:N 1:N
Furniture --> Component --> Component
You all understand that update form of Level1 will/must include, as Level0 do, another DataGridView control to display/detail all related items issued from next level. This explains why I can't allow user to update Level 1 directly from DataGridView control.
I've searched in MSDN and even bought a few books on subject but unfortunately I found nothing on how to do it this way. All articles on DataGridView control were only showing how to update record directly from control.
My approach, I think, would be to transmit to my level1 updating form, as a single parameter, the selected DataRow object (or a brand new one if currently adding) issued from DataGridView and let user update it's content. When User finally leaves level0 update form, then I presume that DataGridView corresponding table would be automatically updated according to DataGridView's content.
What would be the proper way to do it? I would certainly appreciate to hear you view on this.
Also, what can I do if I want to refresh DataGridView's content when coming back from update form. Is it done automatically? I would certainly be sure that it reflects the reality, not only when I update it myself but also especially when other users could concurrently update same records?
Thanks in advance,
Stéphane
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Dec 18, 2007
HI all,
I have a windows application which runs a process,
I am updating database column "Status" with Processing when the application is running, and on completion I update it with Staus="Completed" or in case I close the application
I update db with Status="Interupted" .
I have problem that in case while proces is running, power supply or system turns off, the db Status="Processing", but in actual it is interupted.
How will i update?
Please help.
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Nov 14, 2007
Hi,
Inside a single transaction I'm inserting/updating multiple records into multiple tables, in this order:
table 1 record 1
table 2 record 1
table 3 record 1
table 1 record 2
table 2 record 1
table 1 record 3
table 2 record 3
table 3 record 3
Now I'm getting an unspecified error on a certain table:
Unspecified error [ 3,-1300704038,-1834095882,activitypointerBase,x lock (x blocks),PAG (idx): 1078 ]
From msdn I see that:
PAG (idx) means a lock on an index page.
x lock means an exclusive lock:
Indicates a data modification, such as an insert, an update, or a deletion. Ensures that multiple updates cannot be made to the same resource at the same time. (I assume that multiple updates within the SAME transaction can be made, only multiple updates from different transaction cannot be made, right?)
I cannot find any reference to this error message and don't know what the numbers mean. Maybe it relates to data that can be found in the sys.lock_information table like explained here, http://technet.microsoft.com/en-us/library/ms172932.aspx, but I'm not sure.
Furthermore, the sys.lock_information table is empty. I haven't been able to reproduce the problem myself. I only received an error log and the database to investigate it.
So, does anybody have an idea what this error message means and what I can do to troubleshoot this?
Thanks,
Jeffry
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Jan 20, 2008
Dear;
I got a problem executenonquery in asp.net 2.0. Below as my Code:
1 Dim conn As New SqlConnection(tmpconn)2 Dim cmd1 As New SqlCommand("SP_RPTFABTRANSFER_DYEING_PREV", conn)3 4 cmd1.CommandType = CommandType.StoredProcedure5 cmd1.CommandTimeout = 9006 cmd1.Parameters.Add(New SqlParameter("@aSTDATE", SqlDbType.VarChar, 10))7 cmd1.Parameters.Add(New SqlParameter("@aEDDATE", SqlDbType.VarChar, 10))8 cmd1.Parameters.Add(New SqlParameter("@aBUYERID", SqlDbType.VarChar, 10)) 9 cmd1.Parameters.Add(New SqlParameter("@aFACTORYID", SqlDbType.VarChar, 10))10 cmd1.Parameters.Add(New SqlParameter("@aFabGrpId", SqlDbType.VarChar, 10))11 cmd1.Parameters.Add(New SqlParameter("@aFABSUPPIDFROM", SqlDbType.VarChar, 10))12 cmd1.Parameters.Add(New SqlParameter("@aFABSUPPIDTO", SqlDbType.VarChar, 10))13 cmd1.Parameters.Add(New SqlParameter("@aUSERID", SqlDbType.VarChar, 20))14 cmd1.Parameters.Add(New SqlParameter("@aDelType", SqlDbType.VarChar, 20))15 16 cmd1.Parameters("@aSTDATE").Value = lstartdt17 cmd1.Parameters("@aEDDATE").Value = lenddt18 cmd1.Parameters("@aBUYERID").Value = Trim(dropBuyer.SelectedValue)19 cmd1.Parameters("@aFACTORYID").Value = Trim(dropFactory.SelectedValue)20 cmd1.Parameters("@aFabGrpId").Value = lFabGrp21 cmd1.Parameters("@aFABSUPPIDFROM").Value = fabFrom22 cmd1.Parameters("@aFABSUPPIDTO").Value = fabTo23 cmd1.Parameters("@aUSERID").Value = Session("UID").ToString24 cmd1.Parameters("@aDelType").Value = lDelType25 Try26 conn.Open()27 cmd1.ExecuteNonQuery()28 conn.Close()29 Catch ex As Exception30 lblerr.Visible = True31 lblerr.Text = ex.Message32 Finally33 conn.Close()34 End Try
Web.Config<add name="oldtextileConnectionString" connectionString="Data Source=xx.xx.xx.xx;Initial Catalog=ERP;Integrated Security=TRUE;Connection Lifetime=0;Min Pool Size =0;Max Pool Size=1000;Pooling=true;" providerName="System.Data.SqlClient"/>
This Code running on asp only 2min Execute time. But i try it on Asp.net 2.0 take a long time about 15min or request time out error. Could any one can give me some tips or hits? Help much appreciated. Thanks
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Sep 7, 2006
I hope you would help me in this problem. I use the code below for executenonquery command for mdb DB.But I do not know the changes I should made when Using SQL2005.-------------Dim connectionString As String = "Provider=Microsoft.Jet.OLEDB.4.0; " & _ "Data Source=C:ASPNET20dataNorthwind.mdb" Dim dbConnection As New OleDbConnection(connectionString) dbConnection.Open() Dim commandString As String = "INSERT INTO Employees(FirstName, LastName) " & _ "Values(@FirstName, @LastName)" Dim dbCommand As New OleDbCommand(commandString, dbConnection) Dim firstNameParam As New OleDbParameter("@FirstName", OleDbType.VarChar, 10) firstNameParam.Value = txtFirstName.Text dbCommand.Parameters.Add(firstNameParam) Dim lastNameParam As New OleDbParameter("@LastName", OleDbType.VarChar, 20) LastNameParam.Value = txtLastName.Text dbCommand.Parameters.Add(LastNameParam) dbCommand.ExecuteNonQuery() dbConnection.Close()--------
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Sep 11, 2006
Hi, I am trying to execute a nonquery as follows (look for bold):Dim connStringSQL As New SqlConnection("Data Source=...***...Trusted_Connection=False")'// Create the new OLEDB connection to Indexing ServiceDim connInd As New System.Data.OleDb.OleDbConnection(connStringInd)Dim commandInd As New System.Data.OleDb.OleDbDataAdapter(strQueryCombined, connInd)Dim commandSQL As New SqlCommand("GetAssetList2", connStringSQL)commandSQL.CommandType = Data.CommandType.StoredProcedureDim resultDS As New Data.DataSet()Dim resultDA As New SqlDataAdapter()'// Fill the dataset with valuescommandInd.Fill(resultDS)'// Get the XML values of the dataset to send to SQL server and run a new query...'// Return the number of resultsresultCount.Text = source.Count.ToStringresults.DataSource = sourceresults.DataBind()'// Record the searchcommandSQL = New SqlCommand("RecordSearch", connStringSQL)commandSQL.Parameters.Clear()commandSQL.Parameters.Add("@userName", Data.SqlDbType.VarChar, 50).Value = authUser.Text()commandSQL.Parameters.Add("@createdDateTime", Data.SqlDbType.DateTime).Value = DateTime.Now()commandSQL.Parameters.Add("@numRows", Data.SqlDbType.Int, 1000).Value = resultCount.TextcommandSQL.Parameters.Add("@searchString", Data.SqlDbType.VarChar, 1000).Value = searchText.TextconnStringSQL.Open()commandSQL.ExecuteNonQuery()connStringSQL.Close() The stored procedure looks like this:Use GTGAssetsDROP PROC dbo.RecordSearch;--New ProcedureGOCREATE PROC dbo.RecordSearch(@userName varchar(50),@createdDateTime DateTime,@numRows varchar(1000),@searchString varchar(1000))ASBEGINSET NOCOUNT ONINSERT INTO SearchLog (SearchString, CreatedByUser, CreatedDTTM, RowsReturned) VALUES (@searchString, @userName, @createdDateTime, @numRows)ENDGOAny ideas as to why this error is appearing? Incorrect syntax near 'RecordSearch'. 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.Data.SqlClient.SqlException: Incorrect syntax near 'RecordSearch'.Source Error: Line 169: commandSQL.Parameters.Add("@searchString", Data.SqlDbType.VarChar, 1000).Value = searchText.Text
Line 170: connStringSQL.Open()
Line 171: commandSQL.ExecuteNonQuery()
Line 172: connStringSQL.Close()
Line 173: End IfMany thanks!James
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Dec 9, 2006
When I try to insert a record with the ExecuteNonQuery command, I get the following error information. Any clues why? Thanks.
SSqlException was unhandled by user code...Message="Incorrect syntax near [output of one of my field names]."...[Item detail:] In order to evaluate an indexed property, the property must be qualified and the arguments must be explicitly supplied by the user.
My code:
Private objCmd As SqlCommandPrivate strConn As New SqlConnection(ConfigurationManager.AppSettings("conn"))...objCmd = New SqlCommand("INSERT INTO tblUsers (UserID,FName,LName,PrimLang1,Ctry,Phone)" & _"VALUES('" & strUser & "','" & strFName.Text & "','" & strLName.Text & "', '" & strLang.Text & "', '" & strCtry.Text & "', '" & strPhone.Text & "'" _, strConn)strConn.Open()objCmd.ExecuteNonQuery()
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Dec 12, 2006
Hi,I am developing a small application where in I need to take a few data from the user and put it on the DB. I have stored procs for the same. I am getting an error when I execute the ExecuteNonQuery() command. the error is as follows:
System.InvalidCastException: Object must implement IConvertible. at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream) at System.Data.SqlClient.SqlCommand.ExecuteNonQuery() at Intranet_New.leaveForm.btnSubmit_Click(Object sender, EventArgs e) in c:inetpubwwwrootintranet_newleaveform.aspx.cs:line 138
Snippet of code:
try
{
con = new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["SqlCon"]);
cmd = new SqlCommand();
cmd.Connection = con;
cmd.CommandType = CommandType.StoredProcedure;
cmd.CommandText = "SP_InsertIntoLeave";
cmd.Parameters.Add("@empid", SqlDbType.Char, 20);
cmd.Parameters["@empid"].Value = txtEmplyId.Text;
cmd.Parameters.Add("@empName", SqlDbType.NVarChar, 50);
cmd.Parameters["@empName"].Value = txtName.Text;
cmd.Parameters.Add("@LeaveFrom", SqlDbType.DateTime);
string str_LeaveFrom = ddlDay.SelectedValue + "/" +ddlMonth.SelectedValue + "/" + ddlYear.SelectedValue;
DateTime LF = new DateTime();
LF = DateTime.Parse(str_LeaveFrom);
string LeaveFrom1 = (LF.ToShortDateString());
cmd.Parameters["@LeaveFrom"].Value = LeaveFrom1;
cmd.Parameters.Add("@LeaveTo", SqlDbType.DateTime);
string str_LeaveTo = ddltoDay.SelectedValue + "/" + ddltoMonth.SelectedValue + "/" + ddltoYear.SelectedValue;
DateTime LT = new DateTime();
LT = DateTime.Parse(str_LeaveTo);
string LeaveTo1 = (LT.ToShortDateString());
cmd.Parameters["@LeaveTo"].Value = LeaveTo1;
cmd.Parameters.Add("@TotalDays", SqlDbType.BigInt);
cmd.Parameters["@TotalDays"].Value = txtNoofDays.Text;
cmd.Parameters.Add("@TypeOfLeave", SqlDbType.NVarChar, 50);
cmd.Parameters["@TypeOfLeave"].Value = rbtnType.SelectedValue;
cmd.Parameters.Add("@ReasonOfLeave", SqlDbType.NVarChar, 1000);
cmd.Parameters["@ReasonOfLeave"].Value = txtReason;
con.Close();
con.Open();
cmd.ExecuteNonQuery();
con.Close();
Stored proc is as follows:
ALTER PROCEDURE dbo.SP_InsertIntoLeave
(
@empid as char(20), @empName as nvarchar(50), @totalLeave as decimal(9) = 12, @LeaveFrom as datetime,
@LeaveTo as datetime, @TotalDays as bigint, @TypeOfLeave as nvarchar(50), @ReasonOfLeave as nvarchar(1000),
@RemainigLeave as decimal(9)
)
/*
(
@parameter1 datatype = default value,
@parameter2 datatype OUTPUT
)
*/
AS
/* SET NOCOUNT ON */
INSERT INTO Leave_Table
(
emp_id, emp_Name, Total_Leave, Leave_From, Leave_To, Total_no_of_Days, Type_of_Leave, Reason_of_Leave,
Leave_Remaining
)
VALUES
(
@empid, @empName, @totalLeave, @LeaveFrom, @LeaveTo, @TotalDays, @TypeOfLeave, @ReasonOfLeave,
@RemainigLeave
)
RETURN
Thanks in Advance.
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Jul 3, 2007
I have created a stored procedure that takes several parameters and ultimately does an INSERT on two tables. The sp returns with an integer indicating which is positive if one or more rows were added.
If I execute the SP by hand using the SQL Server Management Studio Express I get the proper results, the records are added to both tables and the return values are proper. One is an output parameter indicating the Identity value of the main record, the return value simply >0 if OK.
However, when I use C#, build my connection, command and its associated parameters making sure they match the SP then I get a malfunction.
The problem is that when I call ExecuteNonQuery the integer value it returns is -1 even though calling it from Mgmt. Studio gives a >0 result. Even though it returns -1 I can confirm that the records were added to BOTH tables and that the output parameter (The identity) given to me is also correct. However the return value is always -1.
I have no idea what is going wrong, Since I have SQL Express 2005 I do cannot do profiling :(. I really don't see why this goes wrong and I think using ExecuteScalar is not the best choice for this type of action.
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Oct 22, 2007
what the max length that I can run query to sql Server?example:
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Feb 14, 2008
HI
I am using ExecuteNonQuery to run an UPDATE statement but i keep getting the following error message: "ExecuteNonQuery: Connection property has not been initialized. "
this is my code can anyone see what is wrong?
DBCommand.CommandType = CommandType.TextDBCommand.CommandText = queryCourse
DBConnection.Open()
ExecuteNonQuery = DBCommand.ExecuteNonQuery()
DBCommand.ExecuteNonQuery()
DBConnection.Close()
help would be appreciated.
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Apr 29, 2007
I have a DataAccess that has "cmd.ExecuteNonQuery" and another file SqlTableProfileProvider for a SandBox project(from ASP.NET) for a Custom TableProfileProvider. That also has a cmd.ExecuteNonQuery even thou these are 2 different files i get an error after debug.
Question is are they conflicting ? if so how can i fix this.
Code Snippets for both provided below the 2nd cmd.ExecuteNonQuery that is producing the Error is Commented in Orange...Thxs for the help Rattlerr
Incorrect syntax near ','.
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.Data.SqlClient.SqlException: Incorrect syntax near ','.
Source Error:
Line 454: cmd.CommandType = CommandType.Text;
Line 455:
Line 456: cmd.ExecuteNonQuery();
Line 457:
Line 458: // Need to close reader before we try to update
[SqlException (0x80131904): Incorrect syntax near ','.]
System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +859322
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +736198
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +188
System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +1959
System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) +149
System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async) +903
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) +132
System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe) +415
System.Data.SqlClient.SqlCommand.ExecuteNonQuery() +135
Microsoft.Samples.SqlTableProfileProvider.SetPropertyValues(SettingsContext context, SettingsPropertyValueCollection collection) in d:Programming ProgramsXtremesystemsXtremesystemsxsApp_CodeSqlTableProfileProvider.cs:456
System.Configuration.SettingsBase.SaveCore() +379
System.Configuration.SettingsBase.Save() +77
System.Web.Profile.ProfileBase.SaveWithAssert() +31
System.Web.Profile.ProfileBase.Save() +63
System.Web.Profile.ProfileModule.OnLeave(Object source, EventArgs eventArgs) +2374047
System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +92
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64
DataAccess.cs::
Code Snippet
public abstract class DataAccess
{
private string _connectionString = "";
protected string ConnectionString
{
get { return _connectionString; }
set { _connectionString = value; }
}
private bool _enableCaching = true;
protected bool EnableCaching
{
get { return _enableCaching; }
set { _enableCaching = value; }
}
private int _cacheDuration = 0;
protected int CacheDuration
{
get { return _cacheDuration; }
set { _cacheDuration = value; }
}
protected Cache Cache
{
get { return HttpContext.Current.Cache; }
}
protected int ExecuteNonQuery(DbCommand cmd)
{
if (HttpContext.Current.User.Identity.Name.ToLower() == "sampleeditor")
{
foreach (DbParameter param in cmd.Parameters)
{
if (param.Direction == ParameterDirection.Output ||
param.Direction == ParameterDirection.ReturnValue)
{
switch (param.DbType)
{
case DbType.AnsiString:
case DbType.AnsiStringFixedLength:
case DbType.String:
case DbType.StringFixedLength:
case DbType.Xml:
param.Value = "";
break;
case DbType.Boolean:
param.Value = false;
break;
case DbType.Byte:
param.Value = byte.MinValue;
break;
case DbType.Date:
case DbType.DateTime:
param.Value = DateTime.MinValue;
break;
case DbType.Currency:
case DbType.Decimal:
param.Value = decimal.MinValue;
break;
case DbType.Guid:
param.Value = Guid.Empty;
break;
case DbType.Double:
case DbType.Int16:
case DbType.Int32:
case DbType.Int64:
param.Value = 0;
break;
default:
param.Value = null;
break;
}
}
}
return 1;
}
else
return cmd.ExecuteNonQuery();
}
protected IDataReader ExecuteReader(DbCommand cmd)
{
return ExecuteReader(cmd, CommandBehavior.Default);
}
protected IDataReader ExecuteReader(DbCommand cmd, CommandBehavior behavior)
{
return cmd.ExecuteReader(behavior);
}
protected object ExecuteScalar(DbCommand cmd)
{
return cmd.ExecuteScalar();
}
SecondFile::
Code Snippet
public override void SetPropertyValues(SettingsContext context, SettingsPropertyValueCollection collection) {
string username = (string)context["UserName"];
bool userIsAuthenticated = (bool)context["IsAuthenticated"];
if (username == null || username.Length < 1 || collection.Count < 1)
return;
SqlConnection conn = null;
SqlDataReader reader = null;
SqlCommand cmd = null;
try {
bool anyItemsToSave = false;
// First make sure we have at least one item to save
foreach (SettingsPropertyValue pp in collection) {
if (pp.IsDirty) {
if (!userIsAuthenticated) {
bool allowAnonymous = (bool)pp.Property.Attributes["AllowAnonymous"];
if (!allowAnonymous)
continue;
}
anyItemsToSave = true;
break;
}
}
if (!anyItemsToSave)
return;
conn = new SqlConnection(_sqlConnectionString);
conn.Open();
List<ProfileColumnData> columnData = new List<ProfileColumnData>(collection.Count);
foreach (SettingsPropertyValue pp in collection) {
if (!userIsAuthenticated) {
bool allowAnonymous = (bool)pp.Property.Attributes["AllowAnonymous"];
if (!allowAnonymous)
continue;
}
//Normal logic for original SQL provider
//if (!pp.IsDirty && pp.UsingDefaultValue) // Not fetched from DB and not written to
//Can eliminate unnecessary updates since we are using a table though
if (!pp.IsDirty)
continue;
string persistenceData = pp.Property.Attributes["CustomProviderData"] as string;
// If we can't find the table/column info we will ignore this data
if (String.IsNullOrEmpty(persistenceData)) {
// REVIEW: Perhaps we should throw instead?
continue;
}
string[] chunk = persistenceData.Split(new char[] { ';' });
if (chunk.Length != 2) {
// REVIEW: Perhaps we should throw instead?
continue;
}
string columnName = chunk[0];
// REVIEW: Should we ignore case?
SqlDbType datatype = (SqlDbType)Enum.Parse(typeof(SqlDbType), chunk[1], true);
object value = null;
// REVIEW: Is this handling null case correctly?
if (pp.Deserialized && pp.PropertyValue == null) { // is value null?
value = DBNull.Value;
}
else {
value = pp.PropertyValue;
}
// REVIEW: Might be able to ditch datatype
columnData.Add(new ProfileColumnData(columnName, pp, value, datatype));
}
// Figure out userid, if we don't find a userid, go ahead and create a user in the aspnetUsers table
Guid userId = Guid.Empty;
cmd = new SqlCommand("SELECT u.UserId FROM vw_aspnet_Users u WHERE u.ApplicationId = '" + AppId + "' AND u.UserName = LOWER(@Username)", conn);
cmd.CommandType = CommandType.Text;
cmd.Parameters.AddWithValue("@Username",username);
try {
reader = cmd.ExecuteReader();
if (reader.Read()) {
userId = reader.GetGuid(0);
}
else {
reader.Close();
cmd.Dispose();
reader = null;
cmd = new SqlCommand("dbo.aspnet_Users_CreateUser", conn);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@ApplicationId", AppId);
cmd.Parameters.AddWithValue("@UserName", username);
cmd.Parameters.AddWithValue("@IsUserAnonymous", !userIsAuthenticated);
cmd.Parameters.AddWithValue("@LastActivityDate", DateTime.UtcNow);
cmd.Parameters.Add(CreateOutputParam("@UserId", SqlDbType.UniqueIdentifier, 16));
cmd.ExecuteNonQuery();
userId = (Guid)cmd.Parameters["@userid"].Value;
}
}
finally {
if (reader != null) {
reader.Close();
reader = null;
}
cmd.Dispose();
}
// Figure out if the row already exists in the table and use appropriate SELECT/UPDATE
cmd = new SqlCommand(String.Empty, conn);
StringBuilder sqlCommand = new StringBuilder("IF EXISTS (SELECT 1 FROM ").Append(_table);
sqlCommand.Append(" WHERE UserId = @UserId) ");
cmd.Parameters.AddWithValue("@UserId", userId);
// Build up strings used in the query
StringBuilder columnStr = new StringBuilder();
StringBuilder valueStr = new StringBuilder();
StringBuilder setStr = new StringBuilder();
int count = 0;
foreach (ProfileColumnData data in columnData) {
columnStr.Append(", ");
valueStr.Append(", ");
columnStr.Append(data.ColumnName);
string valueParam = "@Value" + count;
valueStr.Append(valueParam);
cmd.Parameters.AddWithValue(valueParam, data.Value);
// REVIEW: Can't update Timestamps?
if (data.DataType != SqlDbType.Timestamp) {
if (count > 0) {
setStr.Append(",");
}
setStr.Append(data.ColumnName);
setStr.Append("=");
setStr.Append(valueParam);
}
++count;
}
columnStr.Append(",LastUpdatedDate ");
valueStr.Append(",@LastUpdatedDate");
setStr.Append(",LastUpdatedDate=@LastUpdatedDate");
cmd.Parameters.AddWithValue("@LastUpdatedDate", DateTime.UtcNow);
sqlCommand.Append("BEGIN UPDATE ").Append(_table).Append(" SET ").Append(setStr.ToString());
sqlCommand.Append(" WHERE UserId = '").Append(userId).Append("'");
sqlCommand.Append("END ELSE BEGIN INSERT ").Append(_table).Append(" (UserId").Append(columnStr.ToString());
sqlCommand.Append(") VALUES ('").Append(userId).Append("'").Append(valueStr.ToString()).Append(") END");
cmd.CommandText = sqlCommand.ToString();
cmd.CommandType = CommandType.Text;
cmd.ExecuteNonQuery(); //THIS cmd.ExecuteNonQuery Produces the Error
// Need to close reader before we try to update
if (reader != null) {
reader.Close();
reader = null;
}
UpdateLastActivityDate(conn, userId);
}
finally {
if (reader != null)
reader.Close();
if (cmd != null)
cmd.Dispose();
if (conn != null)
conn.Close();
}
}
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Apr 21, 2008
I have an interesting error that shows up on Windows Mobile 6.0 devices but does not appear to affect Windows Mobile 5.0 devices. The application runs in .NET CF 2.0 on SQL CE 3.0 using Merge Replication. When the application starts, there is an ExecuteNonQuery prior to calling the first synchronization. It appears that once the application has replicated that you can no longer create a connection to the database and run an ExecuteNonQuery successfully. If you have already created the SqlCeConnection and just open and close it as needed that you are able to run ExecuteNonQuery commands.
In Windows Monile 6.0; however, I eventually run out of memory, like there is a leak someplace. Does anyone have any ideas for how you would actually be able to dispose of the SqlCeConnection and recreate it each time? Does calling .Close() release all the native resources on a SqlCeConnection? I am trying out one more modification, I realized the SqlCeReplication object was not being disposed of and I'm guessing this probably also uses native resources; can anyone confirm this would also potentially cause a problem?
The application works but it is aggravating to have to softboot once in awhile to recover the memory, I'd like to move beyond it. Any ideas would be great!
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Mar 27, 2008
I try to get the value return from GetRandomPosition StoredProc, and it throws a statement saying incorrect syntax.
Error:
Line 1: Incorrect syntax near 'GetRandomPosition'.
Mark up:
myPuzzleCmd.Execute is used in Classic ASP and it works just fine.
I tried to subsitute with ExecuteReader / ExecuteScalar / ... etc, none of them fix it.
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Aug 1, 2004
Hi all!
I basically need to get some records from a table and while looping through them i need to insert some records on other table.
I keep getting this error:
There is already an open DataReader associated with this connection which must be closed first.
The piece of code that I have is like this:
...
SqlCommand sqlCmd2 = new SqlCommand(sqlString2, dbConn);
sqlCmd2.Transaction = trans;
SqlDataReader dr = sqlCmd2.ExecuteReader(CommandBehavior.CloseConnection);
//loop through dr
while (dr.Read())
{
string sqlStr = "insert into prodQtyPrice (typeQtyId, prodId, typeId) values(28," + dr["prodId"] + "," + dr["typeId"] +")";
SqlCommand sqlCmd3 = new SqlCommand(sqlStr, dbConn);
//sqlCmd3.Transaction = trans;
sqlCmd3.ExecuteNonQuery();
}
...
Also I would like to have the insertions in the same transaction as the previous sql commands.
Thanks a million!
LAM
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Aug 12, 2004
Hi
I have an asp.net [c#] page that queries a database which worked fine until I entered a new field called VSReferenceNumber.
The error message suggest there is something wrong with the sql string, but for the life of me I can't see why it is wrong.
I believe the problem is somewhere here:
SqlString += "VSReferenceNumber = '" + VSReferenceNumber.Replace("'", "''") + "', ";
Any help would be most appreciated.
Many thanks in advance
Regards
Miles
The Error is::
System.Data.SqlClient.SqlException: Line 1: Incorrect syntax near 'VSReferenceNumber'. at System.Data.SqlClient.SqlCommand.ExecuteNonQuery() at ASP.workingdatagrid2_aspx.myDataGrid_Update(Object Sender, DataGridCommandEventArgs e) in C:Inetpubwwwrootuapworkingdatagrid2.aspx:line 64
Here's the code::
<script runat="server">
//public string ConnString = "server=atw_data01;database=UAP;uid=atw_cheryl.theobald;pwd=nudibranch;";
public string ConnString = "Server=(local); user id=sa;password=;initial catalog = UAP;";
void BindData()
{
//-- Using the Try statement, we attempt to connect to our
//-- database, execute a SqlDataAdapter to store our data,
//-- populate a dataset and then bind that dataset
//-- to our DataGrid.
try
{
SqlConnection SqlConn = new SqlConnection(ConnString);
string SqlString = "SELECT [uapID], [DealershipName], [AutoExchangeClientID], [VSReferenceNumber] FROM uapForm";
SqlDataAdapter SqlComm = new SqlDataAdapter(SqlString, SqlConn);
DataSet customerData = new DataSet();
SqlComm.Fill(customerData, "uapForm");
myDataGrid.DataSource = customerData;
myDataGrid.DataBind();
SqlConn.Close();
SqlComm.Dispose();
SqlConn.Dispose();
}
//-- If we are not able to connect, display a friendly error
catch (Exception e)
{
ErrorLabel.Text = "Not able to connect to database. See description below: <P>";
ErrorLabel.Text += e.ToString();
}
}
void myDataGrid_Update (object Sender, DataGridCommandEventArgs e)
{
//-- Take the data from each textbox in our editable item
//-- and assign that text to a string variable
string uapID = Convert.ToString(e.Item.Cells[0].Text);
string DealershipName = ((TextBox) e.Item.Cells[1].Controls[0]).Text;
string AutoExchangeClientID = ((TextBox) e.Item.Cells[2].Controls[0]).Text;
string VSReferenceNumber = ((TextBox) e.Item.Cells[3].Controls[0]).Text;
//-- Again, using the Try statement, attempt to connect to our database
//-- and make an update with the data from our datagrid
SqlConnection SqlConn = new SqlConnection(ConnString);
try
{
SqlConn.Open();
string SqlString = "UPDATE uapForm ";
SqlString += "SET DealershipName = '" + DealershipName.Replace("'", "''") + "', ";
SqlString += "AutoExchangeClientID = '" + AutoExchangeClientID.Replace("'", "''") + "' ";
SqlString += "VSReferenceNumber = '" + VSReferenceNumber.Replace("'", "''") + "', ";
SqlString += " WHERE uapID = '" + uapID + "'";
SqlCommand SqlComm = new SqlCommand(SqlString, SqlConn);
SqlComm.ExecuteNonQuery();
SqlConn.Close();
SqlComm.Dispose();
SqlConn.Dispose();
}
//-- If for some reason we cannot connect, display a friendly error.
catch (Exception exc)
{
ErrorLabel.Text = "Not able to connect to database. <br>Please See description below:<P> <P>";
ErrorLabel.Text += exc.ToString();
}
//-- Remove the edit focus
myDataGrid.EditItemIndex = -1;
//-- Rebind our datagrid
BindData();
}
void myDataGrid_Cancel(object Sender, DataGridCommandEventArgs e)
{
//-- Remove the edit focus
myDataGrid.EditItemIndex = -1;
//-- Rebind our datagrid
BindData();
}
void myDataGrid_Edit(object Sender, DataGridCommandEventArgs e)
{
//-- Set the edit focus to the item that was selected
myDataGrid.EditItemIndex = (int) e.Item.ItemIndex;
//-- Rebind our datagrid
BindData();
}
void Page_Load (object Sender, EventArgs e)
{
//-- If the page is not posting back, bind our datagrid
if (!Page.IsPostBack)
{
BindData();
}
}
</script>
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Apr 27, 2006
Hi,
I'm using .net 2.0 and I have created a stored procedure (sql server DB) which has one insert statement with 2 input parameters. When I execute this stored procedure using ExecuteNonQuery(), it always returning -1. I want to know how many records are effected. I want to know if there is any error. Help appreciated.
Thanks,
Brett
code looks like this:
SqlConnection sqlConn = new SqlConnection();
sqlConn.ConnectionString = "myString...";
SqlCommand cmd = new SqlCommand();
cmd.CommandText = "usp_InsertApplicationInfo";
cmd.CommandType = CommandType.StoredProcedure;
SqlParameter param1 = cmd.Parameters.Add("@vchrApplicationName", SqlDbType.VarChar);
param1.Direction = ParameterDirection.Input;
SqlParameter param2 = cmd.Parameters.Add("@vchrApplicationDescription", SqlDbType.VarChar);
param2.Direction = ParameterDirection.Input;
param1.Value = "prama1";
param2.Value = "test";
cmd.Connection = sqlConn;
sqlConn.Open();
int rows = cmd.ExecuteNonQuery();
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Dec 13, 2006
I was trying an RDA Demo project. However, everytime I pull the data from Sql Server 2005 and then move on to add a row to the table using SqlCeCommand.ExecuteNonQuery(), the application fails catastrophically without giving any exception and simply exits!
When I have pulled the data once and this application has shut down (exited) I can open it again and then continue normally but I can't expect the application to PULL the data and then even add or update a row to that table. I can do select queries fine. Why would this happen?
I am disposing all the objects that I use in both the scenarios, or atleast I believe so.
Does any one have any idea?
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May 18, 2007
Hy, again! I am at the begining of an application. I have some modules that insert, delete and update only one row at one table. My question is should I use dataadapter.Update() or ExecuteNonQuery(). I prefer ExecuteNonQuery because I want to build a class : DataLayer to implement my own InsertProcedure(), UpdateProcedure(),DeleteProcedure(). I want speed in my application, so which is the best: dataadapter.Update() OR ExecuteNonQuery(). Thank you!
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Jan 15, 2007
Hey,
I have a page that inserts into a customers table in the DataBase a new customer account using this function:
Public Function InsertCustomers(ByRef sessionid, ByVal email, ByVal pass, Optional ByVal fname = "", Optional ByVal lname = "", Optional ByVal company = "", Optional ByVal pobox = "", Optional ByVal add1 = "", Optional ByVal add2 = "", Optional ByVal city = "", Optional ByVal state = "", Optional ByVal postalcode = "", Optional ByVal country = 0, Optional ByVal tel = "")
Dim result As New DataSet
Dim tempid As Integer
Dim conn As New SqlConnection(ConfigurationSettings.AppSettings("Conn"))
Dim Adcust As New SqlDataAdapter
Adcust.InsertCommand = New SqlCommand
Adcust.SelectCommand = New SqlCommand
Adcust.InsertCommand.Connection = conn
Adcust.SelectCommand.Connection = conn
sessionExists(email, sessionid, 1)
conn.Open()
If fname = "" Then
Adcust.InsertCommand.CommandText = "Insert Into neelwafu.customers(email,password,sessionid) Values('" & email & "','" & pass & "','" & sessionid & "')"
Else
Dim strsql As String
strsql = "Insert Into neelwafu.customers"
strsql = strsql & "(sessionid,email,password,fname,lname,company,pobox,address,address2,city,state,postalcode,countrycode,tel) values("
strsql = strsql & "'" & sessionid & "','" & email & "','" & pass & "','" & fname & "','" & lname & "','" & company & "','" & pobox & "','" & add1 & "','" & add2 & "','" & city & "','" & state & "','" & postalcode & "', " & country & ",'" & tel & "')"
Adcust.InsertCommand.CommandText = strsql
End If
Adcust.InsertCommand.ExecuteNonQuery()
Adcust.SelectCommand.CommandText = "Select Max(id) from neelwafu.Customers"
tempid = CInt(Adcust.SelectCommand.ExecuteScalar())
conn.Close()
Return tempid
End Function
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Now, I am getting an error:
Violation of PRIMARY KEY constraint 'PK_customers_1'. Cannot insert duplicate key in object 'customers'. The statement has been terminated.
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
The customers table has as a primary key the 'email'.....
so plz can I know why am I getting this error ????
Thank you in advance
Hiba
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