why would I not be able to obaint the out parameter in temp.
myCommand.Parameters["@CompanyName"].Value.ToString() reamains null after execution and when the same Stored procedure is executed in TSQL things work just fine.
MY DBA wrote a trigger, that upon hitting the delete button for a payment, the payment would be transferred to another table and the trigger would call a sp as well. since the trigger is calling the sp, I should only supply the parameters.
I have a method like follows: string EmpCount = null; DateTime _dtstart = Convert.ToDateTime(txtStart.Text.Trim()); DateTime _dtend = Convert.ToDateTime(txtEnd.Text.Trim());SQLProvider sqlp = new SQLProvider(System.Configuration.ConnectionStrings["ConString"].ConnectionString);string SqlText = @" select count(*) from employee where activeemp=1 and startdate BETWEEN @dtstart and @dtend; using (sqlp.Connection) { sqlpm [] param = { new sqlpm("dtStart", _dtstart), new SqlP("dtEnd", _dtend) }; }EmpCount = sqlp.ExecuteScalar(SqlText, param).ToString(); return Convert.ToInt32(mbrCount);
Then the method I am calling is:public Object ExecuteScalar(String sqlText, Sqlp[] param) {try { //Some Code here } } So in the calling method (ExecuteScalar), the second parameter is defined as an array, is it ok to have an array in the called method too?
Hi guys, hoping one of you may be able to help me out. I am using VS 2005, and VB.net for a Windows application. I have a table in SQL that has a list of Storedprocedures: Sprocs Table: SPID - PK (int), ID (int), NAME (string), TYPE (string)The ID is a Foreign key (corresponding to a Company ID), the name is the stored procedure name, and Type (is the type of SP). On my application I need to a certain SP depending on the company selected and what page you are on. I have a seperate SP that passes in parameters for both Company, and Type and should output the Name value: ALTER PROCEDURE [dbo].[S_SPROC] ( @ID int, @TYPE CHAR(10), @NAME CHAR(20) OUTPUT )AS SELECT @NAME = NAME FROM SPROCSWHERE [ID] = @IDAND [TYPE] = @TYPE Unfortunately I dont seem to be able to get the output in .Net, or then be able to fill my dataset with the Stored Procedure.Has anyone done something similar before, or could point me in the right direction to solving this problem. ThanksPhil
I'm trying to write an esqlc program that will run a stored procedure that returns several output parameters. I haven't been able to find any documentation to date that explains how to run the "EXEC SQL EXECUTE procname" command and specify the output parameters.
My stored procedure "aek_proc1" takes one input parameter (p1 - an 8-character string) and 3 output parameters (p2 - an integer; p3 - an 8-character string, and p4 a 40-character string).
My esqlc program contains the following code….
EXEC SQL BEGIN DECLARE SECTION; char p1[9]; int p2; char p3[9]; char p4[41]; WXEC SQL END DECLARE SECTION;
Any idea what I'm doing wrong or how it should be coded?
I'd really appreciate any advice you can offer!!
I've spend hours browsing this newsgroup and found lots of examples of how to do this in VB and from Query Analyser but I can't find any examples for ESQL/C that work.
I have a couple of questions that I hope someone might be able to provide some direction on.
1. Why can't you call a proc when the proc uses temp tables? I wrote a simple proc (select * from table) and the data subscription works perfect. I then take that same query and put it into a temp table and the data set can't be validated by the subscription, Why?
2. Why can't you pass a simple execute statement in a data subscription? (execute dbo.RptTakeTheLeadFLSDinnerCompetition @FiscalQuarter ='2007-Q3', @StoreRegionID = '9231', @StoreType = 'Full-Line Store') works perfect in SQL but once you try and validate in the data subscription is fails.
3. Another question, why if I dumb down the proc and the number of parameters does it work? Are there limitations on the number of parameters you can pass into a proc from a data driven subscription?
Basically, I want to declare a few variables dynamically and pass them into a execute statement that calls the proc. Which in turn runs the report.
This seems to be much more difficult than it was in DTS (or perhaps I just need to adjust to the new way of doing things).
Eventually I found that I needed to use "SQL command from variable" and using two other variables as input parameters. The expresion for the command is
This previews correctly and the resulting columns are available for mapping to a destination. So far so good.
By the way, is this the best way to call a stored procedure with parameters?
I have pasted the stored procedure at the end of this posting because I have come accross a puzzling problem. The query as shown below works correctlly but if I un-comment the delete statement, the preview still works and the columns are still avilable for mapping but I get the following errors when the package is executed.
Error: 0xC02092B4 at Data Flow Task, OLE DB Source [1]: A rowset based on the SQL command was not returned by the OLE DB provider.
Error: 0xC004701A at Data Flow Task, DTS.Pipeline: component "OLE DB Source" (1) failed the pre-execute phase and returned error code 0xC02092B4.
I realise that I could execute the delete query in a separate SSIS package step but I am curious as to why there is a problem with the way I tried to do it.
At one stage the stored procedure used a temp table and later I also experimented with a table variable. In both cases I got similar errors at execution time. In the case of the temp table there was another problem in that, while the preview worked, there were no columns available for mapping. Using a table variable seemed to overcome this problem but I still got the run time error. eventually I found a way to avoid using either a temp table or a table variable and the package then worked correctly, copying the data into the desitnation table.
It seems to me that if there is any complexity at all to the stored procedure, these errors seem to occur. Can anyone enlighten me as to what the "rules of engagement" are in this regard? Is one solution to use a wrapper stored procedure that simply calls the more complex one?
ALTER procedure [dbo].[usp_ValveStatusForDay]
(
@dateTime DateTime,
@reportName VarChar(100)
)
AS
BEGIN
DECLARE @day VarChar(10)
DECLARE @month VarChar(10)
DECLARE @year VarChar(10)
DECLARE @start VarChar(25)
DECLARE @end VarChar(25)
SET @day = Convert(Varchar(10),DatePart(day, @dateTime))
SET @month = Convert(VarChar(10), DatePart(month, @dateTime))
SET @year = Convert(VarChar(10), DatePart(year, @dateTime))
This is the code which I have written in code window.
Public Shared Function CalcLocalFactor(ByVal CalcLifeCode As Integer, ByVal CalcFiscalAge As Integer, ByVal CalcLifeYearsUsed As Double, ByVal CalcLocConvention As String, ByVal CalcSRate As Integer) As Double Dim locCalcFiscalAge As Integer = 0 Dim locFactor As Double= 1.0 Dim locFactor1 As Double = 1.0 Dim REM1 As Integer = 1 Dim DEP As Double = 0 Dim YR As Integer Dim HALF_YEAR As Double Dim LINEAR As Double Dim MACR As Double If CalcFiscalAge > CalcLifeCode + 1 Then locCalcFiscalAge = 0 locFactor = 1.0 End If If (CalcLocConvention <> "HALF-YEAR" And CalcLifeYearsUsed < CalcLifeCode) Then locFactor = Math.Round((CalcLifeYearsUsed / CalcLifeCode), 4) End If If (CalcLocConvention = "HALF-YEAR") Then for YR = 1 to CalcFiscalAge step 1 If YR = CalcLifeCode + 1 Then locFactor1 = 1 Exit For End If If (YR = 1 Or YR = CalcFiscalAge) Then HALF_YEAR = 2 Else HALF_YEAR = 1 End If LINEAR = Math.Round(REM1 / (CalcLifeCode - YR + 1.5) / HALF_YEAR, 4) MACR = Math.Round(REM1 / CalcLifeCode * CalcSRate / HALF_YEAR, 4) If MACR >= LINEAR Then DEP = MACR Else DEP = LINEAR End If locFactor1 = locFactor1 + DEP REM1 = 1 - locFactor1 locFactor = locFactor1 Next End If Return locFactor End Function
I'm calling this code in a Report Parameter like below:
It is working fine for the first record where as for other records, the value is not getting changed. i.e. the first records value is coming repeatedly for all other records also.
How can I dynamically change the parameter values of the function?
Parameter is not accepting directly the field names, hence I used other parameter to initialize the field and used that parameter for this.
Ex. Parameter Name ; FieldPurchDate (internal) FieldName : PURCHDATE Other parameter: FieldInDate (internal) FieldName : InDate
While initializing the new parameter CalcPurchDate,, I used an expression for this: Parameters!CalcFiscalAge.Value
=iif(Parameters!FieldPurchDate.Value is nothing, Parameters!FieldInDate.Value,Parameters!FieldPurchDate.Value)
and using this CalcPurchDate for processing of the parameter:
Hi all, From the "How to Call a Parameterized Stored Procedure by Using ADO.NET and Visual Basic.NET" in http://support.microsft.com/kb/308049, I copied the following code to a project "pubsTestProc1.vb" of my VB 2005 Express Windows Application:
Imports System.Data
Imports System.Data.SqlClient
Imports System.Data.SqlDbType
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim PubsConn As SqlConnection = New SqlConnection("Data Source=.SQLEXPRESS;integrated security=sspi;" & "initial Catalog=pubs;")
Dim testCMD As SqlCommand = New SqlCommand("TestProcedure", PubsConn)
testCMD.CommandType = CommandType.StoredProcedure
Dim RetValue As SqlParameter = testCMD.Parameters.Add("RetValue", SqlDbType.Int)
Console.WriteLine("Number of Records: " & (NumTitles.Value))
End Sub
End Class
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// The original article uses the code statements in pink for the Console Applcation of VB.NET. I do not know how to print out the output of ("Book Titles for this Author:"), ("{0}", myReader.GetString(2)), ("Return Value: " & (RetValue.Value)) and ("Number of Records: " & (NumTitles.Value)) in the Windows Application Form1 of my VB 2005 Express. Please help and advise.
I have a SSRS report with four parameters,and I want to be able to enter information for two of the parameters and run the report opposed to all four of them. However, when I select allow blanks and only select the parameters that I want to run the report by, the report come back blank..Essentially, I want to be able to the run report by different parameters without having to enter information for all parameters at the same time.
Hi, I have an app in C# that executes a query using SQLCommand and parameters and is taking too much time to execute.
I open a SQLProfiler and this is what I have :
exec sp_executesql N' SELECT TranDateTime ... WHERE CustomerId = @CustomerId', N'@CustomerId nvarchar(4000)', @CustomerId = N'11111
I ran the same query directly from Query Analyzer and take the same amount of time to execute (about 8 seconds)
I decided to take the parameters out and concatenate the value and it takes less than 2 second to execute.
Here it comes the first question... Why does using parameters takes way too much time more than not using parameters?
Then, I decided to move the query to a Stored Procedure and it executes in a snap too. The only problem I have using a SP is that the query can receive more than 1 parameter and up to 5 parameters, which is easy to build in the application but not in the SP
I usually do it something like (@CustomerId is null or CustomerId = @CustomerId) but it generate a table scan and with a table with a few mills of records is not a good idea to have such scan.
Is there a way to handle "dynamic parameters" in a efficient way???
When I query the ReportServices WS and scan the parameter dependencies for SalesRep it says there are four dependencies: FromDate, ToDate, DivisionalOffice and Manager!!!
If I change "dsSalesRep" to use "DivisionalOffice.Value" the ReportingServices WS parameter dependency scan returns only one dependency for "SalesRep" parameter!!!( This is the correct behavior )
Has anybody seen this behavior and more importantly, is there a work around?
Hello all, Given: string commandText = "Categories_Delete";SqlCommand myCommand = new SqlCommand(commandText, connection);myCommand.CommandType = CommandType.StoredProcedure; Is there a reason NOT to use myCommand.Parameters.AddWithValue("@CategoryID",CategoryID); I'd prefer to use that over myCommand.Parameters.Add("@CategoryID", SqlDbType.Int, 4).Value = CategoryID; as I have these functions being created dynamically and hope to get away from a big lookup to try to convert System.Types into SqlDbTypes. [shudder] It seems that ADO.NET makes an implicit conversion to the valid type. If this is correct then I can move on fat dumb and happy. Anyone have any good insight? Thanks,
Hi all, i have a DTS package that i call from a C# app, i had it working great until i decided to use an activeX script to do the data transformations instead of the row copy. I need to use ActiveX to add a standard name to the last column in the destination table. the problem is the task is executing without errors (from c#) but nothing is happening, its failing silently. If i modify the Data Transformation back to a standard column mapping (with separate DTSTransformations for each column) it works fine, but as soon as i use activeX to handle the transformations it doesn't work. Can anyone tell me what i may be doing wrong. heres the calling code from C# if(f.Name.Substring(13,7).ToLower() == "product") { try { activity.Log("Starting Product DTS Package..."); DTS.Package2Class package = new DTS.Package2Class(); object pVarPersistStgOfHost = null; package.LoadFromSQLServer( "192.168.8.8", "username", "thepassword", Microsoft.SqlServer.DTSPkg80.DTSSQLServerStorageFlags.DTSSQLStgFlag_Default, null, null, null, (string)ConfigurationSettings.AppSettings["productDTSPackage"], ref pVarPersistStgOfHost); package.GlobalVariables.Item(1).Value = f.FullName.ToString(); package.Execute(); package.UnInitialize(); //force release of COM object System.Runtime.InteropServices.Marshal.ReleaseComObject(package); package = null; } catch(Exception e) { activity.Log(string.Format("Failureprocessing {0}",WorkingPath + f.Name) +" - "+ e.Message); } and the activex i tried to use for the transformations is: '**********************************************************************' Visual Basic Transformation Script'************************************************************************' Copy each source column to the destination columnFunction Main() DTSDestination("Yesmail Id") = DTSSource("product series") DTSDestination("Customer CKM CustId") = DTSSource("product family") DTSDestination("Product SKU") = DTSSource("transaction date") DTSDestination("product model name") = DTSSource("serial number") DTSDestination("serial number") = DTSSource("product model name") DTSDestination("transaction date") = DTSSource("Product SKU") DTSDestination("product family") = DTSSource("Customer CKM CustId") DTSDestination("product series") = DTSSource("Yesmail Id") DTSDestination("fileName") = DTSGlobalVariables("sourceFile").Value <-- this is why im using the activex for this field to get a Global Variable. Main = DTSTransformStat_OKEnd Functionthe weird thing is the PACKAGE runs fine from ENTERPRISE MANAGER with this activex, it just doesn't do it from my Calling app, perhaps i have missed something i need to change in the package constructor? BTW: i do have my assembly signed in C# for the COM wrapper.thanks in advance, mcm
Hello, I have done extensive work with Classic ASP for 9 years now. Working with Stored Proceedures etc However now am working in c# am adviced by a friend that its best to use the 1. The "Object data source" to call SP 2. Are there any documentations pointers on best practices, how its done ? I want to use the "on click event" in my class file. thanks Ehi
Hello, are there any sample codes that show you how to execute a SP in .net 1. Using a class 2. Calling the class in the onlick_button function ? thanks Ehi
I'm developing a new Stored Proc that will be taking information in to enter customer and order info. Looking at the current Stored Proc its using alot of If statements and I'm thinking of breaking the sp up into different Stored Procs and calling them all from One main stored proc. I know how to do this but I was wondering how it would effect performance. So should I simply keep all the stuff in one proc or module it out into multiple ones to make it easier to follow and read?
I'm working in SQL Server 2005. I have an existing SP that does exactly what I need (it's the aspnet_UsersInRoles_IsUserInRole SP). I want to reuse this SP and use it's return value as a field in the SP I'm writing. How do I go about doing this? I could take the logic out of the called SP and wrap it in a function; but, I would really like to reuse the SP aspnet_UsersInRoles_IsUserInRole. Thanks in advance for any assistance.
hi, i'm trying to call a dts package from vb.net. i got 2 examples which both don't work. first one gives me a [DBNETLIB][ConnectionOpen(Connect()).]SQL Server does not exist or access denied error. source code:Dim serverName As String = "SERVERNAME"Dim oPackage As New DTS.Package()Dim oStep As DTS.StepDim pVarPersistStgOfHost As Object = Nothing oPackage.LoadFromSQLServer(serverName, "USERID", "PASSWORD", DTSSQLServerStorageFlags.DTSSQLStgFlag_Default, _ "DTSPASSWORD", Nothing, Nothing, "DTSPACKAGENAME", pVarPersistStgOfHost) For Each oStep In oPackage.Steps oStep.ExecuteInMainThread = TrueNext oPackage.Execute() Dim err As LongDim source, description, message As StringFor Each oStep In oPackage.StepsIf oStep.ExecutionResult = DTSStepExecResult.DTSStepExecResult_Failure Then oStep.GetExecutionErrorInfo(err, source, description) message = String.Format("ErrorCode: {0}, Source: {1}, Description: {2}", err.ToString(), source, description)Else message = "Success"End IfNext oPackage.UnInitialize()oPackage = Nothing second example tries to create a dts package dynamically. this time i get the error that the CustomTask can not be casted, somehting about the QueryInterface. source code:Dim oPackage As New Package2()Dim oConnection As Connection2Dim oStep As Step2Dim oTask As TaskDim oCustomTask As BulkInsertTask oConnection = oPackage.Connections.[New]("SQLOLEDB")oStep = oPackage.Steps.[New]()oTask = oPackage.Tasks.[New]("DTSBulkInsertTask")oCustomTask = CType(oTask.CustomTask, BulkInsertTask) <-- error With oConnection .Catalog = "CATALOG" .DataSource = "SERVERNAME" .ID = 1 .UseTrustedConnection = True .UserID = "USERID" .Password = "PASSWORD"End With oPackage.Connections.Add(oConnection)oConnection = Nothing With oStep .Name = "InsertGemal" .ExecuteInMainThread = TrueEnd With With oCustomTask .Name = "InsertGemal" .DataFile = "D:ImportGemal.dat" .ConnectionID = 1 .DestinationTableName = "Gemal" .FieldTerminator = ";" .RowTerminator = " "End With oStep.TaskName = oCustomTask.Name With oPackage .Steps.Add(oStep) .Tasks.Add(oTask) .FailOnError = TrueEnd With oPackage.Execute() oPackage.UnInitialize()oPackage = Nothing any help highly appreciated! t.i.a.,ratjetoes.
Hello, I have the class below. And trying to execute it on a button click event. What am i doing wrong ? Thanks Here is the button click event1 protected void Button1_Click(object sender, EventArgs e) 2 { 3 signup_data_entry signup = new signup_data_entry(); 4 signup.signup_data_entry(); 5 6 }
Here is my class file. please advice 1 public class signup_data_entry 2 { 3 public signup_data_entry() 4 { 5 //SqlConnection con = new SqlConnection("cellulant_ConnectionString"); 6 SqlConnection con = new SqlConnection(ConfigurationManager.AppSettings["cellulant_ConnectionString"]); 7 8 SqlCommand command = new SqlCommand("Cellulant_Users_registration", con); 9 command.CommandType = CommandType.StoredProcedure; 10 11 con.Open(); 12 13 //string IP = new string(); 14 15 16 command.Parameters.Add(new SqlParameter("@RegionID", SqlDbType.Int, 0, "RegionID")); 17 command.Parameters.Add(new SqlParameter("@RegionDescription", SqlDbType.NChar, 50, "RegionDescription")); 18 19 command.Parameters[0].Value = 4; 20 command.Parameters[1].Value = "SouthEast"; 21 22 int i = command.ExecuteNonQuery(); 23 24 25 } 26 }
I have problem in calling the SP from ASP.NET application @DefApp nvarchar(255)= '' ,@DefBusFunction nvarchar(255)= '' ,@DefImpact nvarchar(255) = '',AS Begin declare @sql nvarchar(4000)declare @whereClause nvarchar(4000)DECLARE @return_value intdeclare @sqlWhere nvarchar(4000) select @sql = 'SELECT DefApp, DefBusFunction, DefImpact FROM Def LEFT JOIN ZFunction ON (def.DefApp = ZFunction.App) AND (Def.DefBusFunction = ZFunction.BusFunction)' if @DefImpact <> '' Set @whereClause = ' where DefImpact ' SET @whereClause = @whereClause + ' = ''' + @DefImpact + '''' set @sqlWhere=@sql + @WhereClauseEXEC @sqlWhereEnd and i am calling this SP from my ASP.net application to fill the SSRS report. I have written code in ASP.NET like: sqlCmd = new SqlCommand("subbusample", conn); sqlCmd.CommandType = CommandType.StoredProcedure;sqlCmd.Parameters.Add(new SqlParameter("@DefImpact", SqlDbType.NVarChar, 255, txtValue3.Text.ToString())); sqlCmd.Parameters.Add(new SqlParameter("@DefBusFunction", SqlDbType.NVarChar, 255, txtValue1.Text.ToString())); sqlCmd.Parameters.Add(new SqlParameter("@DefApp", SqlDbType.NVarChar, 255, txtValue2.Text.ToString())); RptViewer.ProcessingMode = Microsoft.Reporting.WebForms.ProcessingMode.Remote; RptViewer.ServerReport.ReportServerUrl = new System.Uri("http://servername/ReportServer");RptViewer.ShowParameterPrompts = false; RptViewer.ServerReport.ReportPath = "/folder name/Subbu_Sample";
when i execute it, i am not able to fill the report with data.
In my shared hosting environment where I am making large volumes of database calls, I am very anxious to preserve my heavily throttled threads-I presume when I make a database call, that it is going to a separate server and any threads that server may be using are in addition to my " hosting plan ". My question (s) is, is it therefore a no-brainer to always make calls to:Dim oResult As IAsyncResult = iDBCmd.BeginExecuteReader()arWaitHandles(0) = oResult.AsyncWaitHandleiIndex = WaitHandle.WaitAny(arWaitHandles, 60000, False) i.e. run all calls to the database asynchronously? Is it really releasing a thread back to my asp.net App while it is waiting? (I.e. Is it worth doing)
I'm new to using DTS packages and I'm running into a problem. Hopefully someone can help me out. I have an ASP.NET page that needs to call a DTS package. Everything seems to be working right up until I call opkg.Execute. The package seems to run but nothing happens. After further investigation I have found what looks like a permissions issue. this is the message I'm getting" Error Number: -2147467259 {Integer}
Error Description: "The Microsoft Jet database engine cannot open the file ''. It is already opened exclusively by another user, or you need permission to view its data." {String}
This is obviously a permissions issue. I'm just not sure who the DTS package is running as and where to set the permissions.
If you have a begin tran in a sp that calls another sp and that called sp fails. can you execute a roll back from the called sp, or should it return and error which will roll back the begin tran in the original sp
Hi all, I want to call dts package from visual basic. The dts package will do a backup of the database. I am not sure how this can be achieved. Any help will be great Thanks
