Custom Task: How To Access/modify The Variables Of A Package
Feb 1, 2007
Hi,
I'm trying to simplify the deployment process of my project. I already had some troubles with the config files but lets say I solved that issue. I'm going to read a flat file and set the variables of my packages from this file. I was thinking to use a Script Task to do that but I will need to copy this task in every package (I have at least 30). So if I want to make some change this will be painful.
Then, I came up with the idea of creating a Custom Task called Config File Task. I'm working on this but I got stuck trying to get the variables from the package that is running my Config File Task.
This is the code I had in the Script Task:
Dim streamReader As New StreamReader(Dts.Variables("ConfigFilePath").Value.ToString)
Dim line As String
Dim lineArray As String()
Dim variableName As String
Dim variableValue As String
Dim readConfigurations As Boolean = False
While (streamReader.Peek() <> -1)
line = streamReader.ReadLine()
If line = "[CONFIGURATIONS]" Then
readConfigurations = True
ElseIf line = "[/CONFIGURATIONS]" Then
readConfigurations = False
Else
If readConfigurations And line <> "" Then
lineArray = line.Split("|".ToCharArray())
variableName = lineArray(0).Trim()
variableValue = lineArray(1).Trim()
If Dts.Variables.Contains(variableName) Then
Dts.Variables(variableName).Value = variableValue
End If
End If
End If
End While
Dts.TaskResult = Dts.Results.Success
All I want to do is set the variables that exists in each package from the config file. In my UI Class (ConfigFileTaskUI.cs) I can have access to the variables via the TaskHost which is passed as an argument of Initialize() method.
Any thoughts? I'd really appreciate some help!
P.S. I've been working on this for 2 days!
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Feb 6, 2007
Hi,
I created a Custom Task which it has a Property called ConfigFilePath. I'm overriding the Validate() method from Task. I want to throw an error if my property ConfigFilePath is empty and if the expression for this property is empty. So far, I can check if the property is empty but I don't see how I can access the Expressions Collection of my Custom Task.
Any thoughts? I'd appreciate your help.
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Jul 3, 2006
Hi Everyone,
I created a script task that uploads a file to a HTTPs site. The script task works well and now I want to turn this script task into a custom component...
I'm having problems on how to call the variables I have in the package, I already locked them for reading, but how am I suppose to access them and how can I put their values into strings so I can easily call them in the WebClient.UploadFile method?
Also, I am very new to custom tasks in SSIS.. and would appreciate if anyone of you can send me something (code, link, etc.) of a very simple custom task without any form or properties, that I can try to study.
Basically, what I want my custom task to do is,
1. Read the varialbes in the package.
2. use the variables values as input in my WebClient.UploadFile("varURLstring", "PUT", "varFilePath")
as you can see, my custom task is really simple... but I'm a noob here and I don't know where to go.
Thanks in advance,
Kervy
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Oct 13, 2006
Hello all,
I have been struggling trying to read and/or write package level variables from within my custom task. I'd like to be able to get and set values from within the Execute method of my custom task. I have searched this forum and the books online and can't seem to find the answer. I thought maybe I could use an expression on my task (mapping the package variable to a custom task public property) but that doesn't seem to be working for me. I also would have thought I could use the VariableDispenser object from within my task but the collection is empty. I have 3 package level variables configured and can't seem to find a way to access them (with intentions of getting/setting). Could someone point me to a good doc or provide an example that may accomplish this? Thanks!
(I'm using package level variables as a means of passing simple information between tasks that are not using a DB, if there is a better way I'm open to suggestions.)
Jay_G
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Sep 4, 2006
Hi,
I am not comfortable with DTS 2000 but I need to execute a encapsulated DTS 2000 package from a SSIS package. The real problem is when I need to pass SSIS variables to DTS 2000 package. The DTS 2000 package have 3 global variables that I can identify on " Execute DTS 2000 Package Task Editor - Inner Variables ". I believe the SSIS variables must be mapped on " Execute DTS 2000 Package Task Editor - OuterVariables ". How can I associate the SSIS variables(OuterVariables ) to "Inner Variables"? How can I do it? Much Thanks.
João
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Jun 29, 2006
Hello,
I found one post from the past asking this question, but didn't see an answer, so I am hoping someone can shed some more light on it:
I am writing a custom log provider in C#. Is it possible give this custom log provider access to the variables collection (via a variabledispenser object)? First glance at the log provider classes would tell me that this is not possible, though I would like confirmation. Also, if I am correct in thinking it is not possible, what was the reason for leaving this out?
Thanks!
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Feb 21, 2007
Hi,
Given that Task.Validate() exposes the package's VariableDispenser, but LogProviderBase.Validate() doesn't...
http://msdn2.microsoft.com/fr-fr/library/microsoft.sqlserver.dts.runtime.task.validate.aspx
http://msdn2.microsoft.com/fr-fr/library/microsoft.sqlserver.dts.runtime.logproviderbase.validate.aspx
...I guess that simply means that I can't access a package's variables within a custom log provider? Can anyone comment/confirm? Any other options/routes to achieving the same..?
We live in hope,
Tamim.
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Oct 1, 2007
I am interested in determining if package variables can be read from a custom log provider. I am able to pass the values into the custom log provider using an expression in a custom connection manager. My intention is to used the values of these variables upon package failure so I can capture the context of the failure. Unfortunately, if the value of the variable is changed at runtime, this update is not reflected in the custom log provider.
Is it possible to get direct access to the package variables from the custom log provider?
Thanks,
Marc
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Oct 26, 2006
Hi
I am developing custom dataflow component ,I need to get the of variables of the current package in the component , how can i get it?
Thanks
Mani
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Oct 27, 2006
Hello All,
I have searched on this forum for a similar question but couldn't find it so I apologize if this has been asked. If so, I'd greatly appreciate a link to the question. I have created a custom task and am trying to read an xml package configuration file within my custom task. To be more specific, I have added an ADO.Net Connection to my database onto the package and have generated the appropriate tags within my package's configuration xml file. I'm not seeing the classes I should use to access the configuration file of the package I've created. Does anybody have any ideas how I can accomplish this or a link to a document that might cover the material? Thanks!
Jay_G
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Feb 23, 2006
Hi,
I need to run an SQL command, in which one of the fields is based on the current time, represented as a string in a specific format.
I used a script task to create the string from the current time, and store it in a package variable named "newDate". Later, in the execute sql task, I have the following update statement: "update table_1 set field_1 = ?" (OLE DB connection is used)
and in the parameters mapping I set parameter 0 to the string package variable "newDate".
The problem is that on runtime, the sql executes with the default value of the variable - i.e. it doesn't take the new value.
I checked it and placed another script task after the first one, that simply tries to read the variable "newDate" and print it to screen, but even here the default value is used.
how can I use the new value of the variable?
thanks.
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Aug 14, 2007
Hi,
I am having trouble getting the Execute SQL Task to recognize the package-level variables in an SSIS package. The tasks fail execution. The package contains three Execute SQL tasks and none of them receive the variables. However, when I replace the '?' in the code with the variable values they execute fine. These are the steps I have taken thus far:
Made sure the three variables are package level.
Verified I'm using an OLE DB valid connection.
Verified the variables are properly mapped in the parameters mapping section of the task properties.
Tried all 4 types of variable to parameter mapping (even though '?' in the query and '0,1,2..' in the name should work).
Changed the Bypassprepare property to 'True'.
Breakpoints and watch windows to verify the variable values.
I actually tried the simple tutorials on a one-liner SQL statement that uses variables, but had the same problem. I know there must be something simple that I'm missing here, but any info would be greatly appreciated!
Thanks!
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Apr 28, 2004
I have a package (Package1) that is run from another package (Package2) via a Execute Package Task. I set a Global Variable called sErrorMessage in the in Package1 and would like to access that Global Variable in an ActiveX Script Task in Package2. How can I do this?
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Feb 13, 2007
Hi,
Let's say I have a package taking as parameter "InvoiceID". I want to execute this package as a child in another package. The parent package gets the list of invoices to produce and calls the child package for each entry of the list.
How do I pass the InvoiceID to the child? I know I can use the parent's variables from the child but I don't want the child package to be dependant on the parent package. For example, I might want to execute the "child" package as a stand-alone in development (providing it with a predefined InvoiceID). I might also want to call the same child package from another parent package with other variable names.
What I would like to do is "push" the value instead of "pulling" it. I know it's possible using the command line and the /SET option (ex.: /SET Package.Variables[InvoiceID].Value;' 184084)... Is it possible using the Execute Package Task?
Thanks
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Jul 3, 2006
I have a requirement to create many SSIS packages and no datatransform is required so the BCP task looks a good contender providing it can do both import & export
is it possible to parse the values in bold as package variables into the BCP task. If so how?
BULK INSERT ipcs_wvg.dbo.extract
FROM 'D:IPCSextract.csv'
WITH (FORMATFILE = 'D:ipcsqueryextract.xml');
Thanks in advance
Dave
I have a global database called ETL Configuration for all my SSIS packages that uses a single table. So I can create three global variables
USE [ETLConfiguration]
CREATE TABLE [dbo].[SSIS Configurations](
[ConfigurationFilter] [nvarchar](255) COLLATE Latin1_General_CI_AS NOT NULL,
[ConfiguredValue] [nvarchar](255) COLLATE Latin1_General_CI_AS NULL,
[PackagePath] [nvarchar](255) COLLATE Latin1_General_CI_AS NOT NULL,
[ConfiguredValueType] [nvarchar](20) COLLATE Latin1_General_CI_AS NOT NULL
) ON [PRIMARY]
Here is the data I would put in here
ConfigurationFilter = 'MySSISPackageName'
ConfiguredValue = 'D:IPCSextract.csv'
PackagePath = 'Package.Variables[User::gsFileName].Properties[Value]'
ConfiguredValueType = 'String'
ConfigurationFilter = 'MySSISPackageName'
ConfiguredValue = 'D:ipcsqueryextract.xml'
PackagePath = 'Package.Variables[User::gsFormatFile].Properties[Value]'
ConfiguredValueType = 'String'
ConfigurationFilter = 'MySSISPackageName'
ConfiguredValue = 'ipcs_wvg.dbo.extract'
PackagePath = 'Package.Variables[User::gsTableName].Properties[Value]'
ConfiguredValueType = 'String'
--Database connection info
ConfigurationFilter = 'MySSISPackageName'
ConfiguredValue = '.mssql2005'
PackagePath = 'Package.Connections[MyDatabaseName].Properties[ServerName]'
ConfiguredValueType = 'String'
ConfigurationFilter = 'MySSISPackageName'
ConfiguredValue = 'MyDatabaseName'
PackagePath = 'Package.Connections[MyDatabaseName].Properties[InitialCatalog]'
ConfiguredValueType = 'String'
I have looked at lots of options to automaticly create SSIS packages and have a hunch that that simple can be better: All these solutions look way to complex to what I want to achieve--
http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=17484&SiteID=1
http://lakshmik.blogspot.com/2005/05/how-to-programmatically-create-ssis.html
Create DataFlow Package Sample
http://msdn2.microsoft.com/en-us/library/ms161541.aspx
SMOTableList Sample
http://msdn2.microsoft.com/en-us/library/ms161564.aspx
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Jun 8, 2007
I am having problems executing a child package from a parent package using the Execute Package Task. I am attempting to run the master package through a SQL Server Agent job.
The SQL Server Agent job is owned by sa. The step that runs the parent package is configured to load the package from the SSIS Package Store on the same server that the job is running.
I have the Execute Package Task configured as follows:
Location: SQL Server
ExecuteOutOfProcess: True
Connecting as a SQL Server login (let's say TestEtl)
I have added the db_dtsoperator database role to both the TestEtl login and the login that SQL Server Agent connects through. I have also configured the child package's reader role to include db_dtsoperator. Per http://msdn2.microsoft.com/en-US/library/ms141053.aspx, this should allow these logins to run the child package.
I have enabled logging of all events in both the parent and child packages. I see the following in the logs when the Execute Package Task executes (omitted portions unrelated to the execution of the child package task):
450939 OnPreExecute ChildPackage 2007-06-08 13:35:17.000 2007-06-08 13:35:17.000 450940 OnPreValidate ChildPackage 2007-06-08 13:35:17.000 2007-06-08 13:35:17.000 450941 OnPostValidate ChildPackage 2007-06-08 13:35:17.000 2007-06-08 13:35:17.000 450942 User: Diagnostic ETL 2007-06-08 13:35:17.000 2007-06-08 13:35:17.000 ExternalRequest_pre: The object is ready to make the following external request: 'IDataInitialize::GetDataSource'.450943 User: Diagnostic ETL 2007-06-08 13:35:17.000 2007-06-08 13:35:17.000 ExternalRequest_post: 'IDataInitialize::GetDataSource succeeded'. The external request has completed.450944 User: Diagnostic ETL 2007-06-08 13:35:17.000 2007-06-08 13:35:17.000 ExternalRequest_pre: The object is ready to make the following external request: 'IDBInitialize::Initialize'.450945 User: Diagnostic ETL 2007-06-08 13:35:17.000 2007-06-08 13:35:17.000 ExternalRequest_post: 'IDBInitialize::Initialize succeeded'. The external request has completed.450946 User: Diagnostic ETL 2007-06-08 13:35:17.000 2007-06-08 13:35:17.000 ExternalRequest_pre: The object is ready to make the following external request: 'IDBCreateSession::CreateSession'.450947 User: Diagnostic ETL 2007-06-08 13:35:17.000 2007-06-08 13:35:17.000 ExternalRequest_post: 'IDBCreateSession::CreateSession succeeded'. The external request has completed.450948 OnError ChildPackage 2007-06-08 13:35:17.000 2007-06-08 13:35:17.000 Error 0x80070005 while preparing to load the package. Access is denied. . 450949 OnError ParentPackage 2007-06-08 13:35:17.000 2007-06-08 13:35:17.000 Error 0x80070005 while preparing to load the package. Access is denied. . 450950 OnTaskFailed ChildPackage 2007-06-08 13:35:17.000 2007-06-08 13:35:17.000 450951 OnPostExecute ChildPackage 2007-06-08 13:35:17.000 2007-06-08 13:35:17.000 450952 OnWarning ParentPackage 2007-06-08 13:35:17.000 2007-06-08 13:35:17.000 SSIS Warning Code DTS_W_MAXIMUMERRORCOUNTREACHED. The Execution method succeeded, but the number of errors raised (1) reached the maximum allowed (1); resulting in failure. This occurs when the number of errors reaches the number specified in MaximumErrorCount. Change the MaximumErrorCount or fix the errors. 450953 OnPostExecute ParentPackage 2007-06-08 13:35:17.000 2007-06-08 13:35:17.000 450954 PackageEnd ParentPackage 2007-06-08 13:35:17.000 2007-06-08 13:35:17.000 End of package execution.
I am sure that what I am doing is quite common, and I obviously have something misconfigured somewhere - but I'm not sure what my misconfiguration is. Can anyone enlighten me?
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Mar 4, 2014
I've got a package in SSIS 2012 that has an Execute SQL task in the control flow level.
The SQL in question does an Upsert via the SQL merge statement. What I want to do, is return the count of records inserted and records updated (No deletes going on here to worry about). I'm using the output option to output the changed recs to a table variable.
I've tried returning the values as:
Select Count(*) as UpdateCount from @mergeOutput where Action = 'Update'
and
Select Count(*) as InsertCount from @mergeOutput where Action = 'Insert'
I've tried setting the resultset to both Single rowset and Full rowset, but i'm not seeing anything returned to the package variables I've set for them (intInsertcount and intUpdatecount).
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Jul 12, 2007
Hi all,
I have an error when a package is trying to execute a SubPackage using the "Execute Package Task". I have this problem for all packages that are running sub packages.
The packages are stored in the DTSPackages folder of the SQL Server installation folder.
The master package is called from an Event Handler on a document library in MOSS 2007.
The account from the Sharepoint Application Pool has Full Control on the DTSPackages folder.
What am I missing ?
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Aug 16, 2006
I am writing a custom task that has some custom properties. I would like to parameterize these properties i.e. read from a varaible, so I can change these variables from a config file during runtime.
I read the documentation and it says if we set the ExpressionType to CPET_NOTIFY, it should work, but it does not seem to work. Not sure if I am missing anything. Can someone please help me?
This is what I did in the custom task
customProperty.ExpressionType = DTSCustomPropertyExpressionType.CPET_NOTIFY;
In the Editor of my custom task, under custom properties section, I expected a button with 3 dots, to click & pop-up so we can specify the expression or at least so it evaluates the variables if we give @[User::VaraibleName]
Any help on this will be very much appreciated.
Thanks
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Jan 24, 2006
Hi,
I would like to design a SSIS package, which have couple of variables. It loads a xls file specified in a variable [varExcelFileFullPath] .
I will run it by commands: exec xp_cmdshell 'dtexec /SQL ....' (pls see an example below).
It seems it does not get the values passed in for those variables. I deployed the package to a sql server.
are there any grammar errors here? I copied it from dtexecui. It worked inside Dtexecui not in dos command.
exec xp_cmdshell 'dtexec /SQL "LoadExcelDB" /SERVER test /USER *** /PASSWORD ****
/MAXCONCURRENT " -1 " /CHECKPOINTING OFF /REPORTING EW
/LOGGER "{6AA833A1-E4B2-4431-831B-DE695049DC61}";"Test.SuperBowl"
/Set Package.Variables[User::varExcelFileName].Properties[Value];"TestAdHocLayer"
/Set Package.Variables[User::varExcelWorkbookName].Value;"Sheet1$"
/Set Package.Variables[User::varExcelFileFullPath].Value;"D: estshareTestAdHocLayer.xls"
/Set Package.Variables[User::varDestinationTableName].Value;"FeaturesTmp"
/Set Package.Variables[User::varPreSQLAction].Value;"delete from FeaturesTmp"
'
thanks,
Guangming
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Jul 10, 2006
HI, I have to copy tables (approx. 60) content from one database to another using SSIS. I know that I can call an execute SQL task to execute an INSERT INTO <target table> SELECT * FROM <source table>.
I was wondering if I could use a single dataflow and change its source and target transform data source to do the same as above. In a script component, is it possible to load a package and modify its dataflow to simulate the INSERT INTO <target table> SELECT * FROM <source table>?
Thank you,
Ccote
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Jul 10, 2007
I have a DTS was created by another programmer which is for move online Database to a offline Database
and now I have to modify it
the DTS package
have 1 Source DB
and 63 distinateDB
between SourceDB and DistinateDB are "Black Line"
and almost of DistinateDB have a green line between a Task ( excute SQL work)
-- some of SQL work are Delete Table and some are Truncate Table
and now I have to add some limits for the DTS
1. First, move all the Data From online Database to Offline Database
2. to Delete Data from online DB , Online Database will only keep Data for 6 months ( older than 6 months have to delete except table A and table B)
can you help me? or tell me where have a reference information I can take a look... have no idea how to modify this DTS package..
thank you very much
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Apr 4, 2008
I've created a Union All data flow task which unions string fields from a couple of queries. I found that I needed to increase the length of the string field in the queries. Increasing the length causes an error in my Union All task. I can't seem to find a way to change the property of the fields in the Union All task. Most of the other data flow tasks have an advanced editor where I can change the length or type of the fields on the input and or output. I can't seem to find this for the Union All task.
Is there any way short of deleting the Output column and recreating it? (I like the order of my original output columns)
Thanks,
Bill Webster
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May 3, 2006
I have created an SSIS export package by right-clicking on a database, choosing 'Export Data', specifying all settings using the wizard, and choosing to Save the SSIS Package, with the SQL Server option checked.
I now want to run the package, and schedule it to run on a regular (daily) basis. The problem I am having is that I can't find the SSIS Package anywhere! I have looked in Microsoft SQL Management Studio, at virtually every element in the tree, and I don't see 'SSIS packages' anywhere. How do I run this package again? Is it only available through a stored proc, or via the DTEXEC command? Also, how do I modify it, other than going all the way through the wizard and overwriting it?
I am using SQL Server 2005. Thanks in advance!
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Jun 19, 2007
Hello,
I'd like to use Globals!ReportName and User!Language in custom code like this:
Function Localize(ByVal key As String) As String
Return ReportUtil.Localizer.Localize(Globals!ReportName, key, User!Language)
End Function
If I preview the report I get an error message saying that there is error on line 2 of custom code.
Is it possible to reach report variables in custom code?
Thanks!
Werner
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Oct 1, 2007
As far as I can make out it is not possible to access the variables collection from a custom log provider.
I'm interested to know what the rationale for this is. Why aren't the variables available for logging purposes?
Thanks
Jamie
[Microsoft follow-up]
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Oct 19, 2011
i am using Microsoft Sql Server 2008 Report buider 3.0. and i generated report and that report how to use custom variables.
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Sep 8, 2006
Hi,
I am making use of the DtUtil tool to deploy my package to SQL Server.
Following is my configuration:
32-bit machine and 32-bit named instance of Yukon.
I have some package variables which need to be set in the code.
Previously I did it as follows:
Set the package variables in the code. For example:
pkgFile.Variables["User::DestinationServerName"].Value = <myvalue>
Deploy the package as follows:
applnObj.SaveToSqlServer(pkgFile, null,
destinationServer, null, null);
Here the package was successfully deployed and when i open those packages using BIDS, I am able to see that the variables are set to the values as doen in teh code.
Because of oen problem I am not using SaveToSQLServer method. So I switched to DTUtil tool.
Now I am doing it this way:
Set the package variables as before.
Deploy the package to SQL Server using DTUtil tool.
Now is the problem:
The package is successfully deployed. But the variables are not set to the value that I have specified in the code.
I also tried DTexec utility to set the package variable. Even that does n't work.
Can anyone help me out? Is there any alternate method to set package variables?
Thanks,
Sandhya
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May 10, 2006
I have saved an SSIS pacakage on my sql server. I am able to see and run the package through Integrations services. My question is, is there a way to edit the package through Management studio?
Thanks
Jim
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May 19, 2007
I have an existing VB6 application which uses an Access 2003 backend datafile, however, I would now like to modify this to use an SQL 2005 datafile, but I don't know how to go about this or the implications when the application is installed on another machine.
The code I use for accessing the Access 2003 file is below, I want to convert this code to access an SQL 2005 datafile instead, can anyone give me some pointers on the best way to go about this, or code sample.
Dim rst As ADODB.Recordset
Dim dbs As ADODB.Connection
Set rst = New ADODB.Recordset
Set dbs = New ADODB.Connection
dbs.Open "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" & _
strNetworkLocation & "MyDB.mdb; JET OLEDBatabase Password=MyPassword"
With rst
.Open "SELECT TOP 1 * FROM tblProject WHERE pjProject = '" & _
lstProject.Text & "'", dbs, adOpenKeyset, adLockOptimistic
strDrawingRef = !pjStartupDrawing
strProject = lstProject.Text
frmMain.OpenFile
.Close
End With
Thank-you in advance for any help you may provide.
Mandy
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Aug 23, 2007
Hello All,
I have a Master Package which calls a group of other packages out on the SSIS Package Store using parent / child and a number of variables. These seem to work when passing various audit information (audit key, record counts, etc) but when I try to pass a variable for the connection string and assign it via an expression to the connection manager, I get the Master Package writing to the correct database and the children package writing to their "default" database which is supplied as the default value in the variables which should be populated by the parent task.
i.e., I end up with my master package audit information in database a and child package audit and transactions in database b, even though the packages associated with these transactions are supposed to be reading the connection string from a parent variable. Any clues or suggestions?
Edit: It is still passing along the correct parent audit information and record counts, it's just not connecting to the correct database by the variables holding the connect string
Thanks for your time.
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Apr 3, 2007
Hello,
If I want to access or modify my local subscription data(not the configuration) how can I do that(from sql server 2005 or from asp.net)? Also can i update directly to the local subscriptions data or do I need another layer which will update from a table for example??
Thank you
Salah
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