How Make Script Component Output 2 Asynchronous?
Jul 6, 2007
I am working with the Data Flow Task Script Component for the first time. I have created a second Output. In my script I add rows to this output.
I have found that Ssis does not release those rows to the second Output until it has processed all of the incomine pipeline records. This will not work for me as there are going to be a few million records coming down the pipe, so I need the Script Component to as soon as possible release these records downstream for insert into the destination component Ole Db component.
Any help would be greatly appreciated?
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Apr 17, 2006
I'm having a tad bit of trouble getting output from an asynchronous component that I've written and am looking for some insight.
This component takes in a name string passed from upstream and parses the name components into standardized output fields. I'm using an asynchronous component because if the name string contains two names ("Fred & Wilma Flintstone") I'm outputting one row for Fred and one for Wilma. I've gotten it to run and with debugging have observed what appeared to me to be proper execution, but zero rows are flowing out of it.
In my ProvideComponentProperties method, I add the three fields and there associated metadata to the OutputColumnCollection. Is this method where this should occur? It's before the PrimeOutput method, so I didn't know if I should be creating the output columns in ProcessInput (i.e., after the output buffer is provided by PrimeOutput.)
In ProcessInput, I'm using AddRow for each input row and another if it contains a second name, setting the value for each index using the buffer's SetString method, to no avail. I can observe it to this point, but then don't know what's in that output buffer (if I'm using the wrong buffer index value, etc)
Thanks.
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Apr 19, 2007
Hi--done some searching, but I am not finding exactly what I need. I am using an asynchronous script component as a lookup since my table I am looking up on requires an ODBC connection. Here is what my data looks like:
From an Excel connection:
Order Number
123
234
345
The table I want to do a lookup on has multiple rows for each order number, as well as a lot of rows that aren't in my first table:
Order Number Description
123 Upgrade to System
123 Freight
123 Spare Parts
234 Upgrade to System
234 Freight
234 Spare Parts
778 Another thing
889 Yet more stuff
etc. My desired result would be to pull all the items from table two that match on Order Number from table one. My actual results from the script I have is a single (random) row from table two for each item in table one.....So my current results look like:
Order Number Description
123 Freight
234 Freight
345 Null
And I want:
Order Number Description
123 Upgrade to System
123 Freight
123 Spare Parts
234 Upgrade to System
234 Freight
234 Spare Parts
345 Null
etc.... Here is my code, courtesy of half a dozen samples found here and elsewhere...
Code Snippet
Imports System
Imports System.Data
Imports System.Math
Imports Microsoft.SqlServer.Dts.Pipeline.Wrapper
Imports Microsoft.SqlServer.Dts.Runtime.Wrapper
Imports System.Data.Odbc
Public Class ScriptMain
Inherits UserComponent
Dim connMgr As IDTSConnectionManager90
Dim odbcConn As OdbcConnection
Dim odbcCmd As OdbcCommand
Dim odbcParam As OdbcParameter
Public Overrides Sub AcquireConnections(ByVal Transaction As Object)
connMgr = Me.Connections.JDEConnection
odbcConn = CType(connMgr.AcquireConnection(Nothing), OdbcConnection)
End Sub
Public Overrides Sub PreExecute()
odbcCmd = New OdbcCommand("SELECT F4211.SDDSC1, F4211.SDDOCO FROM DB.F4211 F4211 Where F4201.SHDOCO = ?", odbcConn)
odbcParam = New OdbcParameter("1", OdbcType.Int)
odbcCmd.Parameters.Add(odbcParam)
End Sub
Public Overrides Sub Input0_ProcessInputRow(ByVal Row As Input0Buffer)
Dim reader As Odbc.OdbcDataReader
odbcCmd.Parameters("1").Value = Row.SO
odbcCmd.ExecuteNonQuery()
reader = odbcCmd.ExecuteReader()
If reader.Read() Then
With Output0Buffer
.AddRow()
.SDDSC1 = reader("SDDSC1").ToString
.SONumb = Row.SO
.SOJDE = CDec(reader("SDDOCO"))
End With
End If
reader.Close()
End Sub
Public Overrides Sub ReleaseConnections()
connMgr.ReleaseConnection(odbcConn)
End Sub
End Class
I just don't know what I need to do to get every row from F4211 where SDDOCO matches Row.SO instead of a single row...... Any ideas or help? Oh, the reason I am starting with my Excel connection is that sheet lists the Orders I need detailed data for, and is only a few hundred rows....F4211 is really really really big.
I have also worked out an alternate way to do this using merge join tasks...but then my datareader source goes off and fetches 300,000 rows from F4211 before my final result set of about 1200 rows. That just feels like a bad approach to me...or am I being over-cautious? I'm a newb (if you couldn't already tell)...so guidence is appreciated.
Thank you....
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May 4, 2006
Hi,
Im new to this list and after many days of trying to figure this out-here we go
Can you please tell me where I€™m going wrong in my asynchronous script component?
I€™m almost there but by using to variable iReadingCount to add the row is not quite correct. There has to be a better way !!!
Thanks in advance
Dave
I have to process a data from a staging table this which has imported a data in a structure like this, each line has a tag which is a fieldname <MyName > followed by the value
<Advice Note Number> is the Tag that tells me it is the start of the next record with the only gotca is there may be up to six <Contractor Billing> Tags in one record.
Tag Val1 Val2
<Advice Note Number> 1374239
<Customer Names> My Name
<Customer Address> My Address
<Completion Date Time> 2005/11/25 16:30:00
<Service Order Number> 123456
<Phone Number> 999535431
<Telephone Exchange> MNG
<Contractor ID> Fabrikan
<Service Order Type> F3
<Contract ID> 41
<Comments> 1 2
<Contractor Billing> 165 1
<Contractor Billing> 167 1
<Customer Signature> NO
<Advice Note Number> 1374240
<Customer Names> My Name
<Customer Address> My Address
<Completion Date Time> 2005/11/25 16:30:00
<Service Order Number> 123456
<Phone Number> 999535431
<Telephone Exchange> MNG
<Contractor ID> Fabrikan
<Service Order Type> F3
<Contract ID> 41
<Comments> 1 2
<Contractor Billing> 165 1
<Customer Signature> NO
So I need a asynchronous script component
(
Setting SynchronousInputID=0 turns your component into an asynchronous component - thus giving you access to the output buffer.)
Because I need to map this data structure like this
Input Table
CREATE TABLE [S_CAT] (
[Tag] [varchar] (8000) COLLATE Latin1_General_CI_AS NULL ,
[Val1] [varchar] (8000) COLLATE Latin1_General_CI_AS NULL ,
[Val2] [varchar] (8000) COLLATE Latin1_General_CI_AS NULL ,
[Val3] [varchar] (8000) COLLATE Latin1_General_CI_AS NULL )
GO
Desired Output Table
CREATE TABLE [S_CATM] (
[CATID] [int] IDENTITY (1, 1) NOT NULL ,
[AdviceNoteNumber] [int] NOT NULL ,
[CustomerNames] [varchar] (75) COLLATE Latin1_General_CI_AS NULL ,
[CustomerAddress] [varchar] (120) COLLATE Latin1_General_CI_AS NULL ,
[ArrivalDateTime] [smalldatetime] NULL ,
[CompletionDateTime] [smalldatetime] NULL ,
[ServiceOrderNumber] [varchar] (20) COLLATE Latin1_General_CI_AS NULL ,
[PhoneNumber] [varchar] (20) COLLATE Latin1_General_CI_AS NULL ,
[TelephoneExchange] [varchar] (20) COLLATE Latin1_General_CI_AS NULL ,
[ContractorID] [varchar] (10) COLLATE Latin1_General_CI_AS NULL ,
[ServiceOrderType] [varchar] (6) COLLATE Latin1_General_CI_AS NULL ,
[ContractID] [varchar] (20) COLLATE Latin1_General_CI_AS NULL ,
[Comments] [varchar] (160) COLLATE Latin1_General_CI_AS NULL ,
[ContractorBilling] [varchar] (10) COLLATE Latin1_General_CI_AS NULL ,
[ContractorBillingQuantity] [tinyint] NULL ,
[ContractorBilling2] [varchar] (10) COLLATE Latin1_General_CI_AS NULL ,
[ContractorBillingQuantity2] [tinyint] NULL ,
[ContractorBilling3] [varchar] (10) COLLATE Latin1_General_CI_AS NULL ,
[ContractorBillingQuantity3] [tinyint] NULL ,
[ContractorBilling4] [varchar] (10) COLLATE Latin1_General_CI_AS NULL ,
[ContractorBillingQuantity4] [tinyint] NULL ,
[ContractorBilling5] [varchar] (10) COLLATE Latin1_General_CI_AS NULL ,
[ContractorBillingQuantity5] [tinyint] NULL ,
[ContractorBilling6] [varchar] (10) COLLATE Latin1_General_CI_AS NULL ,
[ContractorBillingQuantity6] [tinyint] NULL ,
[ApprovalCode] [varchar] (20) COLLATE Latin1_General_CI_AS NULL ,
[TelecomRejectReason] [varchar] (132) COLLATE Latin1_General_CI_AS NULL ,
[ContractorRejectResponse] [varchar] (132) COLLATE Latin1_General_CI_AS NULL ,
[CustomerSignature] [char] (1) COLLATE Latin1_General_CI_AS NULL ,
[ReceivedOnTime] [varchar] (3) COLLATE Latin1_General_CI_AS NULL ,
[DateAdded] [smalldatetime] NOT NULL CONSTRAINT [DF_CATRecords_DateAdded] DEFAULT (getdate()),
CONSTRAINT [PK_CATRecords] PRIMARY KEY CLUSTERED
(
[CATID]
) ON [PRIMARY]
) ON [PRIMARY]
GO
Imports System
Imports System.Data
Imports System.Math
Imports Microsoft.SqlServer.Dts.Pipeline.Wrapper
Imports Microsoft.SqlServer.Dts.Runtime.Wrapper
Public Class ScriptMain
Inherits UserComponent
Dim iReadingCount As Integer = 0
Dim Comments1 As String
Dim Comments2 As String
Dim Comments3 As String
Dim AdviceNoteNumber As Integer
Dim CustomerNames As String
Dim CustomerAddress As String
Dim ArrivalDateTime As Date
Dim CompletionDateTime As Date
Dim ServiceOrderNumber As String
Dim PhoneNumber As String
Dim TelephoneExchange As String
Dim ContractorID As String
Dim ServiceOrderType As String
Dim ContractID As String
Dim Comments As String
Dim ContractorBilling As String
Dim ContractorBillingQuantity As Integer
Dim ContractorBilling2 As String
Dim ContractorBillingQuantity2 As Integer
Dim ContractorBilling3 As String
Dim ContractorBillingQuantity3 As Integer
Dim ContractorBilling4 As String
Dim ContractorBillingQuantity4 As Integer
Dim ContractorBilling5 As String
Dim ContractorBillingQuantity5 As Integer
Dim ContractorBilling6 As String
Dim ContractorBillingQuantity6 As Integer
Dim ApprovalCode As String
Dim TelecomRejectReason As String
Dim ContractorRejectResponse As String
Dim CustomerSignature As String
Dim ReceivedOnTime As String
'Public Overrides Sub CreateNewOutputRows()
'End Sub
Public Overrides Sub Input0_ProcessInputRow(ByVal Row As Input0Buffer)
Try
If StrConv(Row.Tag, VbStrConv.ProperCase) = "<Advice Note Number>" Then
AdviceNoteNumber = CInt(Trim(Row.Val1))
'Increase the reading count by 1
iReadingCount += 1
ElseIf StrConv(Row.Tag, VbStrConv.ProperCase) = "<Customer Names>" Then
CustomerNames = Left(Trim(Row.Val1 & Row.Val2), 75)
ElseIf StrConv(Row.Tag, VbStrConv.ProperCase) = "<Customer Address>" Then
CustomerAddress = Left(Trim(Row.Val1 & Row.Val2), 120)
'ElseIf Row.Tag = "<ARRIVAL Date Time>" Then
' 'ArrivalDateTime = CDate(Trim(Row.Val1))
' ArrivalDateTime = CDate(Trim(Row.Val1) & " " & Trim(Row.Val2))
'ElseIf Row.Tag = "<Completion Date Time>" Then
' 'CompletionDateTime = CDate(Trim(Row.Val1))
' CompletionDateTime = CDate(Trim(Row.Val1) & " " & Trim(Row.Val2))
ElseIf StrConv(Row.Tag, VbStrConv.ProperCase) = "<Service Order Number>" Then
ServiceOrderNumber = Left(Trim(Row.Val1), 20)
ElseIf StrConv(Row.Tag, VbStrConv.ProperCase) = "<Phone Number>" Then
PhoneNumber = Left(Trim(Row.Val1), 20)
ElseIf StrConv(Row.Tag, VbStrConv.ProperCase) = "<Telephone Exchange>" Then
TelephoneExchange = Left(Trim(Row.Val1), 20)
ElseIf StrConv(Row.Tag, VbStrConv.ProperCase) = "<Contractor Id>" Then '"<Contractor ID>"
ContractorID = Left(Trim(Row.Val1), 10)
ElseIf StrConv(Row.Tag, VbStrConv.ProperCase) = "<Service Order Type>" Then
ServiceOrderType = Left(Trim(Row.Val1), 6)
ElseIf StrConv(Row.Tag, VbStrConv.ProperCase) = "<Contract Id>" Then '"<Contract Id>"
ContractID = Left(Trim(Row.Val1), 20)
ElseIf StrConv(Row.Tag, VbStrConv.ProperCase) = "<Comments>" Then
Comments1 = Left(Trim(Row.Val1), 160)
Comments2 = Left(Trim(Row.Val2), 160)
Comments3 = Left(Trim(Row.Val3), 160)
'One Line
If Len(Comments1) > 1 And Len(Comments2) = 1 And Len(Comments3) = 1 Then
Comments = Comments1
End If
'Two Lines
If Len(Comments1) > 1 And Len(Comments2) > 1 And Len(Comments3) = 1 Then
Comments = Comments1 & " " & Comments2
End If
'Three Lines
If Len(Comments1) > 1 And Len(Comments2) > 1 And Len(Comments3) > 1 Then
Comments = Comments1 & " " & Comments2 & " " & Comments3
End If
ElseIf StrConv(Row.Tag, VbStrConv.ProperCase) = "<Contractor Billing>" Then
ContractorBilling = Left(Trim(Row.Val1), 10)
ContractorBillingQuantity = 0 'CInt(Val(Trim(Row.Val2))) 'CInt(Val(Trim(Row.Val2)))
ElseIf StrConv(Row.Tag, VbStrConv.ProperCase) = "<Contractor Billing>" Then
ContractorBilling2 = Left(Trim(Row.Val1), 10)
ContractorBillingQuantity2 = 0 'CInt(Val(Trim(Row.Val2))) 'CInt(Trim(Row.Val2))
ElseIf StrConv(Row.Tag, VbStrConv.ProperCase) = "<Contractor Billing>" Then
ContractorBilling3 = Left(Trim(Row.Val1), 10)
ContractorBillingQuantity3 = 0 'CInt(Val(Trim(Row.Val2))) 'CInt(Trim(Row.Val2))
ElseIf StrConv(Row.Tag, VbStrConv.ProperCase) = "<Contractor Billing>" Then
ContractorBilling4 = Left(Trim(Row.Val1), 10)
ContractorBillingQuantity4 = 0 'CInt(Val(Trim(Row.Val2))) 'CInt(Trim(Row.Val2))
ElseIf StrConv(Row.Tag, VbStrConv.ProperCase) = "<Contractor Billing>" Then
ContractorBilling5 = Left(Trim(Row.Val1), 10)
ContractorBillingQuantity5 = 0 'CInt(Val(Trim(Row.Val2))) 'CInt(Trim(Row.Val2))
ElseIf StrConv(Row.Tag, VbStrConv.ProperCase) = "<Contractor Billing>" Then
ContractorBilling6 = Left(Trim(Row.Val1), 10)
ContractorBillingQuantity6 = 0 'CInt(Val(Trim(Row.Val2))) 'CInt(Trim(Row.Val2))
ElseIf StrConv(Row.Tag, VbStrConv.ProperCase) = "<Approval Code>" Then
ApprovalCode = Left(Trim(Row.Val1), 20)
ElseIf StrConv(Row.Tag, VbStrConv.ProperCase) = "<Telecom Reject Reason>" Then
TelecomRejectReason = Left(Trim(Row.Val1), 132)
ElseIf StrConv(Row.Tag, VbStrConv.ProperCase) = "<Contractor Reject Response>" Then
ContractorRejectResponse = Left(Trim(Row.Val1), 132)
ElseIf StrConv(Row.Tag, VbStrConv.ProperCase) = "<Customer Signature>" Then
CustomerSignature = Left(Trim(Row.Val1), 1)
ElseIf StrConv(Row.Tag, VbStrConv.ProperCase) = "<Received On Time>" Then
ReceivedOnTime = Left(Trim(Row.Val1), 3)
End If
If iReadingCount = 1 Then
'Finally add the row
With Output0Buffer
'add a row to the output buffer
.AddRow()
'Set the values of each of our output buffer columns
.AdviceNoteNumber = AdviceNoteNumber
.CustomerNames = CustomerNames
.CustomerAddress = CustomerAddress
'.ArrivalDateTime = ArrivalDateTime
'.CompletionDateTime = CompletionDateTime
.ServiceOrderNumber = ServiceOrderNumber
.PhoneNumber = PhoneNumber
.TelephoneExchange = TelephoneExchange
.ContractorID = ContractorID
.ServiceOrderType = ServiceOrderType
.ContractID = ContractID
.Comments = Comments
.ContractorBilling = ContractorBilling
.ContractorBillingQuantity = ContractorBillingQuantity
.ContractorBilling2 = ContractorBilling2
.ContractorBillingQuantity2 = ContractorBillingQuantity2
.ContractorBilling3 = ContractorBilling3
.ContractorBillingQuantity3 = ContractorBillingQuantity3
.ContractorBilling4 = ContractorBilling4
.ContractorBillingQuantity4 = ContractorBillingQuantity4
.ContractorBilling5 = ContractorBilling5
.ContractorBillingQuantity5 = ContractorBillingQuantity5
.ContractorBilling6 = ContractorBilling6
.ContractorBillingQuantity6 = ContractorBillingQuantity6
.ApprovalCode = ApprovalCode
.TelecomRejectReason = TelecomRejectReason
.ContractorRejectResponse = ContractorRejectResponse
.CustomerSignature = CustomerSignature
.ReceivedOnTime = ReceivedOnTime
End With
iReadingCount = 0 'Reset
End If
Catch e As Exception
Me.ComponentMetaData.FireError(1, "script source", e.Message, "", 0, True)
'Finally
End Try
End Sub
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Jan 16, 2008
Well my 1 in/multiple out asynchronous script component was looking fabulous, until I tried to run it.
Turns out you can't step through a script component with the debugger, so I'm kind of stuck.
I'm getting the error 'There is no current row in the buffer. A row may need to be added using the AddRow method.'
Here's the script I'm running. For each input row, it's trying to unstring linefeed-seperated input column data into a set of arrays, then create an output row for each populated occurrence and use Addrow() to write the new row. (According to the MSDN doco I shouldn't need to use CreateNewOutputRows())
Can anyone spot where I'm going wrong?
Imports System
Imports System.Data
Imports System.Math
Imports Microsoft.SqlServer.Dts.Pipeline.Wrapper
Imports Microsoft.SqlServer.Dts.Runtime.Wrapper
Public Class ScriptMain
Inherits UserComponent
Dim rcobc(0 To 9) As String
Dim rcobcdesc(0 To 9) As String
Dim rcobcbase(0 To 9) As String
Dim rcobcunits(0 To 9) As String
Dim ratechg(0 To 9) As String
Dim ratelevy(0 To 9) As String
Dim ratered(0 To 9) As String
Dim ratetotal(0 To 9) As String
Dim arrposn As Integer
Public Overrides Sub Input0_ProcessInputRow(ByVal Row As Input0Buffer)
rcobc = Split(Row.INASMRCOBC, vbLf)
...(more unstringing here)
ratetotal = Split(Row.INASMRATETOTALGI, vbLf)
For arrposn = LBound(rcobc) To UBound(rcobc)
If rcobc(arrposn) > " " Then
RatelineBuffer.obc = rcobc(arrposn)
...(more assignments here)
RatelineBuffer.valuation = Row.ASMVALUATION
RatelineBuffer.AddRow()
End If
Next arrposn
End Sub
Public Sub CreateNewOutputRows()
'
' Add rows by calling AddRow method on member variable called "<Output Name>Buffer"
' E.g., MyOutputBuffer.AddRow() if your output was named "My Output"
'
End Sub
End Class
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Mar 14, 2006
If you have an output that is not synchronous with the input what is the best way of processing the data.
I am currently using a generic queue, and a custom class. I am creating an instance of the class in the ProcessINputRow and then adding it to the Queue.
The CreateNewOutputRows Dequeues the class instances and creates buffer rows.
Is there a better solution?
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Feb 13, 2007
I have a custom component that takes in unicode stream and converts it to ascii text. However I would like to make my default string length and code page editable in the standard GUI editor. Right now I can set the default to 1000 characters, but when I try to change it, it says "Property value is not valid"
Any ideas?
Thanks!
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Mar 24, 2007
I am creating of may of dataflow component.
How make a property with list of predefined values?
Thanks in advance.
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Apr 8, 2008
Hi Guys,
I have a Data Flow which consist in a Flat File Source connected to a Derived Column that is connected to an Ole DB Destination
In the same Data Flow i have an script source task which i want to connect to the same Ole DB Destination mentioned before.
I cannot do that because it says that the destination component does not have any available imputs for use in creating a path.
I know the Script Source Task has an Output Column because i verified it.
Is it possible to connect a flat file source AND a script source to the same Ole DB Destination?
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May 11, 2006
For the Custome source Component ErrorOutput, should I go for asynchronous / synchronous Output.
If i go for synchronous output
// Create the error output.
IDTSOutput90 errorOutput = ComponentMetaData.OutputCollection.New();
errorOutput.IsErrorOut = true;
errorOutput.Name = "ErrorOutput";
errorOutput.SynchronousInputID = What Id is required here;
errorOutput.ExclusionGroup = 1;
Is it the IDTSOutput90 InPut.ID / OutPut.ID which should be assigned.
Thanks Regards
Anil
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Apr 14, 2008
HI,
I have a script component in my SSIS solution that transforms a URL that points to a picture to an URL that points to a thumbnail of that picture.
I've added an output called Picture to the component, and an outputcolumn called ThumbnailUrl, the code in the component is as follows:
PictureBuffer.AddRow()
PictureBuffer.ItemID = Row.ItemID
PictureBuffer.Url = Row.CopyoffotText
PictureBuffer.ThumbnailUrl = Row.CopyoffotText.Replace("-220.jpg", "-68.jpg")
VS then gives the following error: "Name 'PictureBuffer' is not declared"
What did I miss?
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Dec 6, 2007
Hi all,
I saw a couple of other posts here on this topic, but none quite got to my issue.
I'm trying to add error output to a custom source component (not a script, a custom component). The samples all seem to deal with transform components, and my issues seem to be unique to source components.
I have the following code related to error handling ...
Public Overloads Overrides Sub ProvideComponentProperties()
...
Dim output As IDTSOutput90 = ComponentMetaData.OutputCollection.New
output.Name = OUTPUTCOLUMNNAME
output.ExternalMetadataColumnCollection.IsUsed = True
ComponentMetaData.UsesDispositions = True
output.ErrorRowDisposition = DTSRowDisposition.RD_NotUsed
output.ErrorOrTruncationOperation = "Something got truncated or blew up"
Dim errorOutput As IDTSOutput90 = ComponentMetaData.OutputCollection.New
errorOutput.Name = ERRORCOLUMNNAME
errorOutput.IsErrorOut = True
...
End Sub
Public Overloads Overrides Sub ReinitializeMetaData()
Dim output As IDTSOutput90 = ComponentMetaData.OutputCollection(OUTPUTCOLUMNNAME)
Dim outColumn As IDTSOutputColumn90 = output.OutputColumnCollection.New
outColumn.Name = strName
outColumn.SetDataTypeProperties(DataType.DT_I4, 0, 0, 0, 0)
Dim metadataColumn As IDTSExternalMetadataColumn90 = output.ExternalMetadataColumnCollection.New
metadataColumn.Name = outColumn.Name
metadataColumn.DataType = outColumn.DataType
metadataColumn.Precision = outColumn.Precision
metadataColumn.Length = outColumn.Length
metadataColumn.Scale = outColumn.Scale
metadataColumn.CodePage = outColumn.CodePage
outColumn.ExternalMetadataColumnID = metadataColumn.ID
outColumn.ErrorRowDisposition = DTSRowDisposition.RD_NotUsed
outColumn.ErrorOrTruncationOperation = "Something Truncated!"
outColumn.TruncationRowDisposition = DTSRowDisposition.RD_NotUsed
Dim errorOutput As IDTSOutput90 = ComponentMetaData.OutputCollection(ERRORCOLUMNNAME)
Dim errorColumn As IDTSOutputColumn90 = errorOutput.OutputColumnCollection.New
errorColumn.Name = outColumn.Name
errorColumn.SetDataTypeProperties(DataType.DT_I4, 0, 0, 0, 0)
...
End Sub
The confusions I have are:
a) the stock advanced properties editor (I haven't provided a custom one) doesn't seem to "realize" that I have an error output, so provides no method to configure. I am believing it would need to know which Output columns can have their error/truncation redirected. I'd have thought setting ErrorRowDisposition on my output column would have been enough to trigger this ??
b) since I don't have any means of configuring, not surprisingly, when I try to connect my error output, designer complains that, "Ths error output cannot receive any error rows. This occurs for several reasons: Input columns or output columns are not yet defined. Error handling is not supported by the component. Error handling is not configured for the component."
c) UsesDispoistions would seem to be appropriate only for a transform component
Thanks for reading, and appreciate any help or pointers.
Bill
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Nov 21, 2006
Wanted to enquire how this is done. Tried doing it in the setUsageType method I have overwritten but only allows description to be changed. Basically need to change "Name".
Best option would be to change it instantly when a user selects a column from the inputs in the custom component, ie. it changes the Output Alias to a desired value. (Input tab in advanced editor)
All this is being done in a custom component which I would like to be synchronous, can achieve a similar result asynchronously.
Thanks
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Jul 25, 2007
To simulate problem do follows:
1. Add Script source component.
2. Add 2 string output collumns: F1 length 50, F2 length 110
3. Add Union All component connected to Script source component
4. Add Script transformation component connected to Union All component
5. Mark F1 and F2 as input collumns
6. In the Input and Output section of the script transformation component check that length of the fields is 50 and 110 correspondingly
7. Edit Union All component: change Union All Input 1 to <ignore> for Output collumns F1, and F2; change Union All Input 1 to F2 for F1 and F1 for F2; change back <ignore> for F1, <ignore> for F2; set back F1 for F1, F2 for F2; Click OK to save
8. In the Input and Output section of the script transformation component check that length of the both fields is 110 now.
So, be careful to select output columns values in Union All component. If you choose wrong field by accident, and replaced it with correct one straight away, the length of output column could be stored not as you expect an need.
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Mar 7, 2007
My script component defines a (DT_WSTR, 450) output column named keyword. How can I access its length within the script, instead of hard-coding 450 as a constant?
My feeble attempts to tease this out through Visual Studio got me this far:
Output0Buffer.keyword.GetType.GetProperty("Length").GetValue(
but now I'm stuck. Also, if it matters, this is an asynchronous transformation component.
Thanks!
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Apr 16, 2007
Hi,
I have created a program that imports a csv into the sql server. but during that import I need to track all the errors that occured for some malformed rows. I think I need to use the error output collection of the dataflow components to track the errors. I figured out that every dataflow component has a error output collection along with the data output collection. I want to write those error outputs into a separete database. So, I have created a SQL server data destination component and created a path between derived columns error output and it input collection. But it is not working as expected. can any body help on this?
or can anyone give me any example how to use/handle error output collection in SSIS?
I will appreciate all kind of suggestions.
thanks
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Mar 27, 2007
Hi Guys,
I created a SSIS custom component, transformation (Asynchronous) with one Input collection and 2 output collections.
The SSIS Package which includes the Component I created works well in the Business Intelligence Studio, but when the same Package is run in the 'Execute Package utility' It fails to run. ( when you Double click on the dtsx file)
The cause of the failiure is
public override void PrimeOutput(int outputs, int[] outputIDs, PipelineBuffer[] buffers)
method receives only one output buffer when executed using the 'Execute Package Utility' { outputs = 1 , buffer.Length = 1 } ( when executed in the BI studio, the method receives parameters of both the output buffers that I expect { outputs = 2 , buffer.Length = 2 } )
The property ComponentMetaData.OutputCollection.Count = 2 as well. Yet the PrimeOutput method provides only 1 buffer.
The Validation Succeeds on both instances, which I assume means that Meta Data is Provided Properly.
What would be the reason for the same pakage to run in 2 different ways like this,
What might I have missed out to do, to make the package run in different ways on 'Business Intelligence Studio' and 'Execute Package Utility'
Thanks a lot
Below are some of the lines from the ProvideComonentProperties Method which deals with the output Collection, Isn't this sufficient for the PrimeOutput to provide 2 output buffers?
ProvideComponentProperties()
public override void ProvideComponentProperties()
{
RemoveAllInputsOutputsAndCustomProperties();
base.RemoveAllInputsOutputsAndCustomProperties();
base.ProvideComponentProperties();
//other function calls
IDTSOutput90 output1 = ComponentMetaData.OutputCollection[0];
output1.Name = "Output1";
output1.Description = ".......................";
extracted.SynchronousInputID =0;
IDTSOutput90 output2 = ComponentMetaData.OutputCollection.New();
output2.Name = "Output2";
output2.Description = "..........................";
output2.SynchronousInputID = 0;
//other function calls
}
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Jun 26, 2006
Would anyone happen to have any pointers or know of any good code examples to either programmatically change the type of an input column when it is passed through the component, or add a new column to the output? I am extracting data from an Oracle database which is in Julian date format (represented within SSIS as a DT_NUMERIC column) and I need to to either transform the input column holding it into a date column, or to dynamically add a new output column holding the transformed data.
Many thanks
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Aug 28, 2007
I'm trying to create a fairly simple custom transform component (because I've read that's the easiest one to create) which will take one column from a flat file source and based on the first row create the output columns.
I'm actually trying to write a component that will solve the now well known problem with parsing CSV files in SSIS. I have a lot of source files and all have many columns so a component that can read in the first line from the CSV file and create the output columns automatically will save me lots of time when migrating the old DTS packages.
I have the basic component set up but I'm stuck when trying to override the OnInputPathAttached method because I don't know how to use the inputID to get the first line from the input (the buffer).
Are there any good examples for creating output columns dynamically based on the input buffer?
Should I just give up on on the transform and create a custom source component instead?
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Aug 17, 2015
I'm writing a custom source component that reads data from a SharePoint list with dynamic mapping to output columns. It's my first custom component and it's based on several samples and tutorials from Internet
Output columns are not created by the component itself, they must be added by user at design time. The component makes dynamically an association between SharePoint fields and available output columns at run-time (based on an mapping table).
I made a very basic skeleton and I encounter a problem when I add a column to output: it has no datatype and when I try to set one I have an the error Property value is not valid, The component xxxxxx does not allow setting output column datatype properties.
Imports System
Imports Microsoft.SqlServer.Dts.Pipeline
Imports Microsoft.SqlServer.Dts.Pipeline.Wrapper
Imports Microsoft.SqlServer.Dts.Runtime.Wrapper
<DtsPipelineComponent(ComponentType:=ComponentType.SourceAdapter,
DisplayName:="SharePoint Dynamic Assoc List Source",
[Code] ....
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Oct 26, 2007
Hello,
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.
Please advice.
Thank you.
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Jan 23, 2007
Hi,
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.
Appreciate a help.
Gulden
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Mar 8, 2008
I have a data flow that consists of
OLE DB source which calls a stored proc that returns a result set
data conversion
Excel destination
I am in design mode in Business Intelligence studio. My excel destination (with an Excel Connection) shows no sheet name though I have an execute SQL task before the data flow to create the excel table called SHEET1. Needless to say, there are no output columns visible to do any mappings. I did go to the ExcelConnection to set the OpenRowset Property to SHEET1 but it seems to have no effect.
I can do the export in SQL Server Management studio and that works fine, but it is basic and does not meet my requirements. I have to customize the package to allow dynamic Excel filenames based on account names and have to split my result set into multiple excel sheets because excel 2003 has a max of 65536 rows per sheet. Also when I use the export wizard, I have the source as a table and eventually the source has to be a stored proc with input parms.
What am I missing or doing wrong? Thanks in advance
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Mar 27, 2007
Hello :
I have a Web application with reports which lasts for a long time, for it I reflected to make call Asynchronous for reports
(that is I execute the report and warned the user when the report is ready).
I found an example which supplied with SQL Server, but as I am novice C# I understands not everything in the example
( AsynchronousRenderCS).
Please indicate me a simpler example.
Thank you.
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Mar 16, 2007
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!
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Aug 13, 2007
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)
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Apr 8, 1999
Hi all,
Can anybody tell me if the have had any luck on creating and processing asychronous cursors. According to Microsoft SQL 7.0 books online after you create your Async cursor and then display the variable @@cursor_rows it should display either a negative number like -1245 meaning that it is still loading or a whole number meaning that it finish loading, but every time I display this variable I get -1 and according to MSSQL documentation this means I'm creating a Synchronous cursor, I have modified the cursor threshold settings, declared my cursor INSENSITIVE, and still can't get a cursor to be Async.
Thanks
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Mar 21, 2007
What I am looking to do is have a stored procedure begin a dialog with my request service.
With that dialog established my stored procedure sends 50 request messages, one for each of the 50 of the United States. I want these to be processed asynchronously by a procedure that is called on activation for the request queue. In that activation procedure the request is processed against the respective state and a response message is sent to the response service (to the response queue). I want to be able to tie these request messages and response messages together with some type of shared identifier. These requests don't need to be processed in any specific order and don't need any fancy locking mechanism via conversation group since these requests require to be processed asynchronously. What is the best approach? Do I need to create 50 seperate queues and open dialogs with each? If this is the route to take, would this be a performance hit?
My goal is to have all 50 states process all at once, each finishing with a response message sent to the response queue. The initiating procedure, after sending these 50 requests, would then spin and wait for all 50 to complete, be it a response, error, or timeout. When all 50 have returned, the procedure would then merge the results and return. So as you can see in my scenario, I dont care when a state is complete as they do not affect the outcome, nor do they access any of the same resources when being processed.
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Mar 30, 2006
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.
Does anyone have any suggestions?
TIA . . . Ed
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Jul 13, 1999
We're looking for a solution to an audit trail issue. Our business people are looking to track each column value that changes(before and after images) for every table on our database as well as the userid that changed the data and when it was changed. Are there any methods that have been employed by other sites to track this level of detailed changes without resorting to triggers for each table and has anyone worked out a way for this audit trail writing to be handled asynchronously within SQL Server?
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Oct 21, 2014
i tried to use xp_cmdshell in order to execute a vbscript from a trigger and it works, but i notice that trigger wait until the vbscript was terminated. i do some things into vbscript, so i can't wait until the end. There is a way to don't wait until the end, in practice, run vbscript in asynchronous mode??
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Jan 3, 2007
I noticed that the current SLQCe driver does not offer support for the APM(Asynchronous Programming Model). Are there any plans to do this in the future? In light of the lack of APM functionality doe anyone have any ideas or thoughts on how async operations could be done, or if they are even needed in the context of applications that use SQL Ce
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