How To Fix DT_Text And DT_NText Read Only In Script Component
Nov 13, 2006
I have a script component that I have written and works as long as the Output columns on the script are string types. When I change the output column type to text (since the size could be essentially unlimited) it gives an error in the script component that the property is read only.
Here is the code line that fails with Property Payments is read only.
Output0Buffer.Payments = fieldValues(i)
If I change the column payments to DT_Wstr it works without issue, but I want to use text incase the value is large.
Here is the error if you try to run the actual script even though I know it has an error.
Error at Data Flow Task [Script Component [85]]: Error 30526: Property 'Payments' is 'ReadOnly'.
Line 86 Column 13 through 69
Error 30526: Property 'Ops' is 'ReadOnly'.
Line 155 Column 13 through 65
Error at Data Flow Task [Script Component [85]]: Error 30526: Property 'Payments' is 'ReadOnly'.
Line 86 Column 13 through 69
Error 30526: Property 'Ops' is 'ReadOnly'.
Line 155 Column 13 through 65
Error at Data Flow Task [DTS.Pipeline]: "component "Script Component" (85)" failed validation and returned validation status "VS_ISBROKEN".
Error at Data Flow Task [DTS.Pipeline]: One or more component failed validation.
Error at Data Flow Task: There were errors during task validation.
The IC column referenced in the script below is DT_NTEXT, so when I run it the output value column gets "Microsoft.SqlServer.DTS.Pipeline.BlobColumn" instead of the individual codes (separated by "*"). Also, there is only 1 output row per input row, instead of 1 output row per code.
I found some references to the GetBobData() method, but replacing Row.IC.ToString() with Row.IC.GetBlobData(0, CInt(Row.IC.Length)).ToString() puts "System.Byte[]" in the value output column. There is still only output row per input row.
So how do I convert the IC column to a String that can be Split()?Public Overrides Sub Input0_ProcessInputRow(ByVal Row As Input0Buffer) Dim seq As Integer = 0 For Each code As String In Row.IC.ToString().Split("*"c) 'Add a row to the output buffer: Output0Buffer.AddRow()
'Preserve columns from the input buffer: Output0Buffer.itemid = Row.itemid Output0Buffer.attributeid = Row.attributeid 'Output0Buffer.IC = Row.IC
'Add output columns: Output0Buffer.seq = seq Output0Buffer.value = code seq += 1 Next End Sub
OBJECTIVE: I would like to read a text file from SQL Server 2000, read the text file content, and load its conntents in a RichTextBoxTHINGS I'VE DONE AND HAVE WORKING:1) I've successfully load a text file (ex: textFile.txt) in sql server database table column (with datatype Image) 2) I've also able to load the file using a Handler as below: using System;using System.Web;using System.Data.SqlClient;public class HandlerImage : IHttpHandler {string connectionString;public void ProcessRequest (HttpContext context) {connectionString = System.Configuration.ConfigurationManager.ConnectionStrings["NWS_ScheduleSQL2000"].ConnectionString;int ImageID = Convert.ToInt32(context.Request.QueryString["id"]);SqlConnection myConnection = new SqlConnection(connectionString);string Command = "SELECT [Image], Image_Type FROM Images WHERE Image_Id=@Image_Id";SqlCommand cmd = new SqlCommand(Command, myConnection);cmd.Parameters.Add("@Image_Id", System.Data.SqlDbType.Int).Value = ImageID;SqlDataReader dr;myConnection.Open(); cmd.Prepare(); dr = cmd.ExecuteReader();if (dr.Read()){ //WRITE IMAGE TO THE BROWSERcontext.Response.ContentType = dr["Image_Type"].ToString();context.Response.BinaryWrite((byte[])dr["Image"]);}myConnection.Close();}public bool IsReusable {get {return false;}}}'>'> <a href='<%# "HandlerDocument.ashx?id=" + Eval("Doc_ID") %>'>File </a>- Click on this link, I'll be able to download or view the file WHAT I WANT TO DO, BUT HAVE PROBLEM:- I would like to be able to read CONTENT of this file and load it in a string as belowStreamReader SR = new StreamReader()SR = File.Open("File.txt");String contentText = SR.Readline();txtBox.text = contentText;BUT THIS ONLY WORK FOR files in the server.I would like to be able to read FILE CONTENTS from SQL Server.PLEASE HELP. I really appreciate it.
At our business we are getting a lot of PDF documents that are being hand keyed into a database. Has anyone heard ior know of a SSIS Data Flow Source component that I coud use to read thos documents into a data stream (?) and process?
I am trying to develop a SSIS package which will read the records from the flat file and insert them into a destination table. I have some validations written in script component. I have declared two Read Write variables with package level scope. when i try to assign a value to the variable in the script component and run the package, the package throws me an error "The collection of variables locked for read and write access is not available outside of PostExecute".
What should be done to over come the problem please help me on this regard
Hello, I am trying to configure a Script Component as a data source. Although this should be a simple exercise, I am running into a problem.
My control flow contains a Foreach Loop with a file iterator. The Directory Expression of the Foreach Loop Editor is supplied by an expression mapped to a package level variable called inputdirectory. The FileNameRetrieval Expression is mapped to a package scoped variable called filename.
My data flow is encapsulated by the Foreach Loop, and contains a Script Component as Source for the Data Flow Source, and a Flat File for the Data Flow Destination. The contents of the Script Designer are as follows:
Code Block Imports System Imports System.Data Imports System.Math Imports Microsoft.SqlServer.Dts.Pipeline.Wrapper Imports Microsoft.SqlServer.Dts.Runtime.Wrapper Imports System.IO Public Class ScriptMain
Inherits UserComponent Dim thisFileDate As Date Dim thisFileName As String Dim thisFilePath As String Public Overrides Sub CreateNewOutputRows()
thisFileName = ReadOnlyVariables("filename").Value.ToString() thisFilePath = ReadOnlyVariables("inputdirectory").Value.ToString() thisFileDate = File.GetCreationTime(thisFilePath & "" & thisFileName) FileSpecBuffer.AddRow() FileSpecBuffer.FileName = thisFileName FileSpecBuffer.FullPath = thisFilePath & "" & thisFileName FileSpecBuffer.CreateDate = thisFileDate End Sub End Class
When I debug the package, I get the following error:
The collection of variables locked for read access is not available at this point.
at Microsoft.SqlServer.Dts.Pipeline.ScriptComponent.get_ReadOnlyVariables()
at ScriptComponent_67311120e6eb4162a3ea1f70847f04de.ScriptMain.CreateNewOutputRows()
at ScriptComponent_67311120e6eb4162a3ea1f70847f04de.UserComponent.PrimeOutput(Int32 Outputs, Int32[] OutputIDs, PipelineBuffer[] Buffers)
at Microsoft.SqlServer.Dts.Pipeline.ScriptComponentHost.PrimeOutput(Int32 outputs, Int32[] outputIDs, PipelineBuffer[] buffers)
My googlefu fails me at reconciling this. I have read various posts about changing the line ReadOnlyVariables("filename").Value to ReadWriteVariables("filename").Value, and handling the buffer assignment in PostExecute. The problem is that all examples shown are either for Script Component as Destination or Script Component as Transformation. I have tried playing with the Custom Properties in the Script Commponent set the ReadOnlyVariables and ReadWriteVariables, using a PreExecute method, a PostExecute method, all with different errors returning. I'm at a loss here. Could anybody provide me with a simple working example so that I can correctly populate my output buffer in the context of Script Component as Source?
I fully understand that I could just run a Script Task Using System.IO.Directory, and System.IO.File, but I really want to make this package work in the manner I've described. Any help would be appreciated.
All examples I found refer to classes under Microsoft.SharePoint namespace. However, I have the SharePoint CSOM that only gives me the Microsoft.Sharepoint.Client namespace.
I need to read the selected values of a multichoice field, but not sure how to do it with classes in the namespace above.
everthing works, exept the TSQL_x0020_Reference_x0020_Numbe field.
I have an XML file that contains a field that has over 8000 characters in it. I cannot use a (n)varchar for it, I must use a Text for it (although as a last resort I could split the string into several (n)varchar columns). I want to set the external column of the XML column to a DT_TEXT and I receive and error message that states :
Error at Import XFFD Data [xffd [1]]: The SSIS Data Flow Task data type "DT_TEXT" on the external metadata column "reviewText" (32411) is not supported for the component "xffd" (1).
I've tried converting the nvarchar into a text stream with the use of a Data Conversion Transform, but I think the Validating steps are truncating the field.
HELP. I've been beating my head against this for a couple hours a day.
Below is the error I get when trying to convert a Visual FoxPro memo field to a DT_WSTR (4000 ) in a SQL table. It does not let me convert a DT_TEXT to a DT_WSTR.
The component is not in a valid state. The validation errors are: Error at NMF [Data Conversion [6328]]: Conversion from "DT_TEXT" to "DT_WSTR" is not supported.
Do you want the component to fix these errors automatically?
In my Data Flow Task I have a Fuzzy Lookup transformation. In the Columns tab of the Fuzzy Lookup Transformation Editor, if I attempt to select a field for pass through that is a DT_TEXT data type, I get the error:
Validation error. Data Flow Task: Fuzzy Lookup [3532]: The data type of column 'event_list' is not supported.Package.dtsx
BOL says, "Only input columns with the DT_WSTR and DT_STR data types can be used in fuzzy matching...." But I'm not doing fuzzy matching on the DT_TEXT column, I'm just trying to pass it through to the transformation's output. BOL doesn't say anything about this data type being incompatible with passing through to the output.
Any thoughts on how I may workaround this issue? I was thinking I would need to perform the lookup on a subset of the columns without the DT_TEXT field and then merge the data back together at the end. But, if there's a setting or some other way, please let me know.
I have a package that has a data lfow task. this task imports data from a db2 database (using the IBM Ole DB provider fro db2) and adds it to sql server database table. This package was created on the server. then though version control (using TFS source control) I check out the package on my local machine. and when I open the package I get the foll 3 errors.
Error 1 Validation error. Import Account Num from BMGP_BDR: DTS.Pipeline: The component metadata for "component "DataReader Source" (1113)" could not be upgraded to the newer version of the component. The PerformUpgrade method failed.
Error 2 Error loading BMAG Download Xref Tables - bmag.dtsx: Microsoft.SqlServer.Dts.Pipeline.ComponentVersionMismatchException: The version of component "DataReader Source" (1113) is not compatible with this version of the DataFlow. [[The version or pipeline version or both for the specified component is higher than the current version. This package was probably created on a new version of DTS or the component than is installed on the current PC.]] at Microsoft.SqlServer.Dts.Pipeline.ManagedComponentHost.HostCheckAndPerformUpgrade(IDTSManagedComponentWrapper90 wrapper, Int32 lPipelineVersion)
Error 3 Error loading BMAG Download Xref Tables - bmag.dtsx: The component metadata for "component "DataReader Source" (1113)" could not be upgraded to the newer version of the component. The PerformUpgrade method failed.
Hi All, I am importing data from an oracle db and one of the columns is a nclob. I would like to truncate the value if it is more than a certain length. I want to use a derived column transformation. I cannot use the len and substring functions because it is not a string. I could convert it to a unicode string and use those functions, but I am afraid there is a size limitation (4000 characters) on it. Is there smth I am missing? Can anybody please suggest any ideas? Thanks a lot.
I have another problem, this time with a flatfile source component. The file is pretty simple organized and in fact everything works as expected.
The file itself comes from an FTP server, so it is not available at designtime. For setting up the flatfile source i downloaded it, but afterwards i delete it, set 'dalayvalidation' to true and try to execute.
FTP download works fine, the file is there but then i get the errormessage:
Copier ErrorCodes [586]: The data type for "output column "Flat File Source Error Output Column" (610)" is DT_NTEXT, which is not supported with ANSI files. Use DT_TEXT instead and convert the data to DT_NTEXT using the data conversion component.
When i try to set the datatype of the Error Output Column (610) to DT_NEXT i only get an errormessage telling me that this would not be a valid value for this property.
The only chance i have to get it working again is to completely delete the flatfile-source, readd and setup it again, then everything works... but only until i remove the files and try to download them via FTP. It's strange :-( and annoying.
I import data from multiple excel files into SQL DB. I have trouble with fields that could contain >255 chars.
If I have the col type = DT_Ntext in my Data Flow, the package fails for files that do not have any values >255 chars.
If I have the external coltype=dt_wstr and the output coltype=dt_wstr(4000) the package fails if the file contains any value >255 chars.(Implicit conversion does not occur, as expected).
I worked around by adding a dummy first row with >255 chars.
Is there a way to use a cast function to solve this prob? I tried using Select dt_ntext(fieldname) from Sheet1$, but that does not work.
Is there some clean way to get around this problem?
I have a package which reads an Access file from a folder. My connection manager to this file is .NET providers for OledbMicrosoft Jet 4.0 OLE DB Provider.
Package works from my computer. But when I execute it on the server as a SQL Agent job, I get
The component metadata for "component "DataReader Source" (1) could not be upgraded to the newer version of the component. The PerformUpgrade method failed.
I copied the mdb file to a folder on the server which my packages have no problem reading data from.
My packages run under the same domain account as defined in proxies.
The documentation on the fuzzy lookup transform mentions that only columns of type DT_WSTR and DT_STR can be used in fuzzy matching. I interpreted this as meaning that you could not create a mapping between an input column of type DT_NTEXT and a column from the reference table. I assumed that you could still have a DT_NTEXT column as part of the input and mark this as a pass through column so that it's value could be inserted in the destination, together with the result of the lookup operation. Apparently this is not the case. Validation fails with the following message: 'The data type of column 'fieldname' is not supported.' First, I'd like to confirm that this is really the case and that I have not misinterpreted this limitation.
Finally, given the following situation
- A data source with input columns
Field_A DT_STR Field_B DT_NTEXT
- A fuzzy lookup is used to match Field_A to a row in the reference table and obtain Field_C.
- Finally, Field_B and Field_C must be inserted into the destination.
In a Data Flow, I have the necessity to use a SSIS variable of type €œObject€? inside Script Component and assign to it the content of 'n' variables of string type. On exiting from the script the variable of type object should contain something like in the following lines: AAAAAAAAAAAAAAAAAAAAAAAAAAAAA BBBBBBBBBBBBBBBBBBBBBBBBBBBBB CCCCCCCCCCCCCCCCCCCCCCCCCCCCC DDDDDDDDDDDDDDDDDDDDDDDDDDDDD €¦€¦€¦€¦€¦€¦€¦. €¦€¦€¦€¦€¦€¦€¦. On exiting from the data flow I will use the variable of type Object in a Script Task, by reading each element in a cyclic fashion. Is there anyone who have experienced something like this? Could anyone provide any example of that? Thanks in advance!
Hi all I'm into a project which uses a lot of views for joining 2 or more tables. Using the MERGE component in SSIS will be a huge effort coz it only has 2 inputs and I gotta SORT the input too. Isnt it possible to have a VIEW like component that joins more than 2 tables and DOESNT need sorting?? (I've thought about creating views in database engine but it breaks my data floe in SSIS and is'nt a practical solution)
I am writing a custom dataflow transformation component and I need to get the name of the preceeding component.
I have been trying to find a way to get a reference to the Package object, MainPipe object or IDTSPath90 object (connecting to the IDTSInput90 of my component) from my component because I think from there I can get to the information I want.
No idea where this bug crept in from. Have been using SSIS for 1.5 years now without hitting this problem.
I had a script component opening an XML document and parsing it using XPATH. I added some code that uses StreamReader / Streamwriter (closing one stream before starting the other). The code works without issue in my C# app.
And it ran without issue 2-3 times in SSIS. Then suddenly after running my package again, the script component says it completes successfully, yet nothing happens. I set a breakpoint on the first line of code - it never hits it. I add a msgbox as the first line of code - and it never displays.
I then close my package / exit out of ssis ... and then re-open it. When i open my script component, all of my code is GONE. All references that I added are gone.
I tried adding the streamreader/writer process to a dll I created from my c# app ... and added the DLL to the package -- same result.
I can reproduce this on 2 different computers.
Anyone experience this problem ? Any idea how to stop it ? Or debug it ?
Here is a slimmed down code sample of what causes the error :
Public Class ScriptMain Public Sub Main() Try Dim xmlDoc As New XmlDocument xmlDoc.Load("c:ulkasync_86281519_20070628045850225_4.xml") MsgBox("xmlLoaded") --this doesn't display once the package starts "acting up" Catch ex As Exception MsgBox(ex.Message) UpdateXML("c:ulkasync_86281519_20070628045850225_4.xml", ex.Message) End Try Dts.TaskResult = Dts.Results.Success End Sub Private Sub UpdateXML(ByVal fileName As String, ByVal message As String) Try Dim invalidChar As String = message.Trim().Substring(message.Trim().IndexOf("0x"), 4) Dim rd As StreamReader = New StreamReader(fileName) Dim xml As String = rd.ReadToEnd() Xml = Xml.Replace(invalidChar, String.Empty) xml = xml.Replace("", String.Empty) xml = xml.Replace("<![CDATA[<![CDATA[", "<![CDATA[") xml = xml.Replace("]]>]]>", "]]>") MsgBox("replaced") rd.Close() Dim wr As StreamWriter = New StreamWriter(fileName) wr.Write(xml) wr.Close() Dim xdoc As XmlDocument = New XmlDocument() xdoc.Load(fileName) Catch ex As Exception UpdateXML(fileName, ex.Message) End Try End Sub End Class
I'm trying to do Sharepoint DR with Log Shipping and every thing configured except one thing which is switch the WSS_Content (Standby /Read-Only) DB to be ready and Write.Â
I tried from
GUI or ALTER DATABASEÂ [WSS_Content]Â SET READ_WRITEÂ WITHÂ NO_WAIT
I have two database files, one .mdf and one .ndf. The creator of these files has marked them readonly. I want to "attach" these files to a new database, but cannot do so because they are read-only. I get this message:
Server: Msg 3415, Level 16, State 2, Line 1 Database 'TestSprintLD2' is read-only or has read-only files and must be made writable before it can be upgraded.
What command(s) are needed to make these files read_write?
i have a database which get refreshed every day from client's data . and we need to pull heavy data from them every day as reports . so only selects happens on that database.
we do daily population of some table in some other databases from this daily refreshed DB.
will read uncommitted or NOLOCK with select queries to retrieve data faster.
there will be no dirty read as there are NO DML operation in that database so for SELECT which happens concurrently on these tables , will NOLOCK work?
Is it possible to set READ UNCOMMITTED to a user connecting to an SQL2000 server instance? I understand this can be done via a front endapplication. But what I am looking to do is to assign this to aspecific user when they login to the server via any entry application.Can this be set with a trigger?
OK, I'm using VS2003 and I'm having trouble. The page works perfectly when I created it with WebMatrix but I want to learn more about creating code behind pages and this page doesn't work. I think it has some things to do with Query builder but I can't seem to get change outside "please register". I have the table populated and it is not coming back with "login successful" or "password wrong" when I've entered correct information. Enclosed is what I've done in VS2003. Can you see where my error is? Any help would be greatly appreciated. Thanks again.
Imports System.data.sqlclient Imports System.Data Public Class login2 Inherits 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.SqlConnection1 = New System.Data.SqlClient.SqlConnection Me.SqlCommand1 = New System.Data.SqlClient.SqlCommand ' 'SqlConnection1 ' Me.SqlConnection1.ConnectionString = "server=LAWORKSTATION;user id=sa;database=test;password=t3st" ' 'SqlCommand1 ' Me.SqlCommand1.CommandText = "SELECT pass FROM Customer WHERE (email = 'txtusername.text')" Me.SqlCommand1.Connection = Me.SqlConnection1
End Sub Protected WithEvents lblUsername As System.Web.UI.WebControls.Label Protected WithEvents lblPassword As System.Web.UI.WebControls.Label Protected WithEvents txtUsername As System.Web.UI.WebControls.TextBox Protected WithEvents txtPassword As System.Web.UI.WebControls.TextBox Protected WithEvents btnSubmit As System.Web.UI.WebControls.Button Protected WithEvents lblMessage As System.Web.UI.WebControls.Label Protected WithEvents SqlConnection1 As System.Data.SqlClient.SqlConnection Protected WithEvents SqlCommand1 As System.Data.SqlClient.SqlCommand
'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) Handles MyBase.Init '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 System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 'Put user code to initialize the page here End Sub
Private Sub btnSubmit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSubmit.Click SqlConnection1.Open() Dim dr As SqlDataReader = SqlCommand1.ExecuteReader If dr.Read() Then If dr("password").ToString = txtPassword.Text Then lblMessage.Text = "login successful" Else lblMessage.Text = "Wrong password" End If Else lblMessage.Text = "Please register" End If dr.Close() SqlConnection1.Close() End Sub End Class
How can we get the name of the component inside the Data Flow Task . What I want is to log error stating which component in the data flow task has failed. Package and Data Flow names I am getting from system variables. I want to log like the Execution Result screen with Name of the component and [its id]. Like "Derived Column[216]" has failed with some error It is possible?
I'd like to incorporate the "package component tree" UI component that is used within the Visual Studio designers into an SSIS utility I'm building. This is the one I'm talking about:
Edit: Apparently using the IMG tag on these forums works in the editor preview, but not in the actual posts, so I've replaced images with links...
Example 1 Example 2
I've done some searching online, but have not found any information about where this UI is implemented, or if it is reusable. Does anyone here know if it is possible to re-use this component in a .NET application?
