SSIS Parent/Child Package Variable Passing
Feb 7, 2006
Hi
I have having trouble getting my hands around how to retrieve variables from a parent package. I read about the Environment variables and Configuration File at the parent package level and the Parent Package variable at the child level.
Here are my questions:
1. Can you only store/retrieve 1 variable in a config file at a time?
2. Does the child package have to define the variables and if so, do they have to be the same names as the parent package?
This seems so more more complex then the DTS2000 way of passing variables to and from packages.
Any help would be appreciated.
Thanks in advance,
Gordon Radley
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Apr 7, 2006
Has someone managed to pass successfully a variable from a parent package to a child package? I€™ve tried a zillion permutations and I can€™t get it to work. The strange thing was that I was able to successfully do this with pre-RTM builds. Basically, what I am trying to do is:
The parent package has a variable, e.g. ExecutionID which I set using a script to System::ExecutionInstanceGUID. I verified that the variable is set correctly by dumping it to a SQL Server table.
I created a child package variable with the same name.
In the child package, I€™ve created a parent package configuration that points to the ExecutionID variable.
I am trying to read the variable in a Derived Column Task in which I have a column linked to @ExecutionID.
This doesn€™t work. Step-by-step instructions from someone who managed to concur this will be greatly appreciated.
Oh, I didn€™t have any luck hitting a breakpoint in a script task inside a child package with both in and out of process execution also.
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May 21, 2007
hi,
I am interested in Passing value from a child Package variable to the Parent package that calls it in ssis.
I am able to call the Child package using the execute package task and use Configurations to pass values from the parent variable to the child, but I am not able to pass the value from the child to the parent.
I have a variable called datasetId in both the parent and child. it gets computed in the child and needs to be passed to the parent...
Any suggestions?
Thanks for any help in advance..
smathew
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Jun 23, 2006
Hi,
I having a problem getting the child package variable values into a parent package. Here is the scenario;
I have parent package(Master) calling two child packages using execute package task. I have no problem to pass variable values from the parent to child using the parent configuration but not able to get the variable values from the child to parent. I am setting the package status in each child package based on certain conditions and determine the final status in a parent based on child package variable statuses. Does any body have any idea? I will appreciate your thoughts.Thanks..Mako
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Dec 20, 2006
Starting with "How to: Use Values of Parent Variables in Child Packages" in the SQL Server 2005 Books Online (http://msdn2.microsoft.com/en-us/library/ms345179.aspx), it seems I need to create a separate package configuration in the child package (of type parent package variable) for each variable I want to pass from the parent to the child. Is that really so? The XML configuration file type allows me to specify any number of variables; how do I do that with the parent package variable?
For that matther, why doesn't the Execute Package Task simply allow me to specify the values of child variables (or other properties) directly? It seems SSIS has made something as trivial as a series of function calls completely opaque:
MyChildPackage(var1=1, var2="foo");
MyChildPackage(var1=2, var2="bar");
MyChildPackage(var1=3, var2="baz");
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Dec 26, 2006
We
have one main package from which 7 other child packages are called. We are using
ParentPackage variables to assign values for variables and database connections.
While the values from ParentPackage variable get assigned to some of the
packages properly, to others it doesn€™t assign the value.
For example:
Except for one of the packages the database connection string gets assigned
properly to all other packages.
Similarly, in another package one of the
variables doesn€™t get assigned. In other packages it is assigned properly.
We
have checked all the other property values and they are exactly the same.
We cannot make any head or tail of this erratic behavior.
Please Help.
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Oct 16, 2007
I have a parent package that calls a child package, when I run the parent package the child package picks up a variable value from the parent in a script task and runs fine, the problem I'm facing is when I run just the child package, the script task fails because it doesn't know about the parent variable. The dilemma I'm facing is in my child script task, if I add the parent variable to the ReadOnlyVariables list then the task fails because the parent variable doesn't exist when I just run the child. If I don't add the parent variable to the ReadOnlyVariabls list then if I try to use it then the task fails saying that the variable doesn't exist in the variables collection.
Is there a way to check for the existence of the parent variable, so when I just run the child package I don't get an error and I don't have to change my task every time I choose to run the child package only vs running the parent/child?
Thanks.
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Oct 13, 2007
I have two SSIS packages in a project, one calling the other. The parent package works fine in my local mechine. After they are deployed to the production, I schedeul jobs to run the packages in the SqlServer. The child package works fine if I run it alone, but the parent package could not find its child package if I run the parent package . As I checked, all xml config files and the connection string pointing to the child package were set correctly. It seems the parent package did not use the xml config file. Can someone help me? Thanks in advance.
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Oct 9, 2015
I want to achieve the following in (SSIS/SSDT for SQL 2012) -Â
I have a generic SSIS package which simply sends out email notifications using SMTP email task (this package is within its own project, and has project level input parameters).
I need to be able to call this package in the Event handler section of every package (numbering in about less than 60) that we have. These packages are within their own respective projects.
I thought I could use the "execute package task", but it turns out , using this, I cannot call a package that is part of some other project. I also cannot call a package that is stored in the CATALOG. Is there any way I can do this ?
When I call the child package , I should be able to send in parameters like - error information and package name of the Parent package.
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Dec 24, 2004
Any one have any ideas or links to point me to ???
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Sep 18, 2006
Hi All,
How can I pass configurations from Parent Packages to a child package? I am using Execute package task to execute a child package but am unable to configure a variable to pass configurations to a child package.
Thanks
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Apr 23, 2008
Hello,
I'm having problem to pass variable from a package to a another one.
I having 2 packages: the parent (parent.dtsx) use a Execute Package Task to execute the child package (child.dtsx).
In the parent package, I have a variable named var1 (data type String) with value=test
In my child package, I having a script task using the variable var1 to make a MsgBox (var1 is in readonly in the script):
MsgBox(CStr(Dts.Variables("var1").Value))
In this case, I having an error (cause the variable may no exist) but i can see the value of the variable in the MessageBox and the execute package task fail because of this error.
After I tried this solution: (Found in this Forum)
In the child package, I create the variable var1 (same type, no value). Then in the control flow, I right click on the background and select "package configurations".
I enable package configurations.
Then I add a new one. I change the configuration type to "parent package variable."
Then, in the specify configuration settings entry, I enter the name of the variable in the parent package.
On the following screen, I select the "value" property of the variable created in this package (Child package). At last, I give the configuration a name and hit finish.
If I execute my parent package, the result is no value in the MessageBox.
I also tried the same thing (with the package configuration) to pass a a variable with the connection string from a package to the connection of an another one (I set the connection string of the connection) and it doesn't work.
What did I miss ?
Thanks in advance for your help.
Regards
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May 21, 2007
Hi,
I created a package which passes some infornmations( through parameters) to its child package.
I need to do some processing in parent package based on execution status of child package.i.e.
if child fails then some operation and if child succeeds then other operation.
To determine the status of execution of child package I am using two differnt constraint ..one constraint is having value "Success" and other having value "Failure".
My problem is that when child packge is executed successfully the constraint with value = "Success" works properly but when child fails the constraint with value "Failure" does not work.
-Prashant
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Feb 25, 2008
I've created a varible timeStamp that I want to feed into a stored procedure but I'm not having any luck. I'm sure its a simple SSIS 101 problem that I can't see or I may be using the wrong syntax
in Execute SQL Task Editor I have
conn type -- ole db
connection -- some server
sql source type -- direct input
sql statement -- exec testStoredProc @timeStamp = ?
if I put a value direclty into the statement it works just fine: exec testStoredProc '02-25-2008'
This is the syntax I found to execute the procedure, I don't udnerstand few things about it.
1. why when I try to run it it changes it to exec testStoredProc @timeStamp = ? with error: EXEC construct or statement is not supported , followed by erro: no value given for one or more requreid parameters.
2. I tired using SQL commands exec testStoredProc @timeStamp and exec testStoredProc timeStamp but nothing happens. Just an error saying unable to convert varchar to datetime
3. Also from SRS I usually have to point the timeStamp to @timeStamp and I dont know how to do that here I thought it was part of the parameter mapping but I can't figure out what the parameter name and parameter size should be; size defaults to -1.
Thank you, please help.
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Sep 14, 2006
Hi guys,
Here's the deal. I have a child package, (say, pack01.dtsx), which uses a dtsconfig file for its connection string, which can be called from other packages, but which also can be called by itself.
However I also have another package (say, pack02.dtsx) which uses the same dtsconfig file for its connection string. It calls on pack01.dtsx.
When I use DTEXECUI and run pack01.dtsx, specifying the proper .dtsconfig file, it goes well. But when I try and run pack02.dtsx, an error occurs saying pack01.dtsx connection cannot be established.
How do I pass the connectionstring being used by pack02 to pack01, without having to remove the configuration file setting of pack01? Can a Parent Package configuration and a configuration file try and map to the same property?
Hope someone could help. Thanks.
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Aug 17, 2006
I have one package that executes 4 child packages (5 total). All 5 packages are set to log information using a connection string with a variable set at runtime for the location. The child packages use a parent variable to get the log connection string from the parent package.
The parent package logs fine, but a strange behavior occurs with the child packages.
The child packages all log data to the location used in the configuration file variable during runtime (like it's supposed to). However, I would get an error right before the first child package finishes execution saying path not found. Just for giggles, I created the folder I use in my development environment on the production environment. The error goes away, but the log file is created in that folder with no data in it. Subsequently, the log file with the data is created in the location set in the configuration file. Now I have two log files!!!!
Anybody know how to fix this?!
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May 19, 2015
Given the sample data and query below, I would like to know if it is possible to have the outcome be a single row, with the ChildTypeId, c.StartDate, c.EndDate being contained in the parent row. Â So, the outcome I'm hoping for based on the data below for ParentId = 1 would be:
1 2015-01-01Â 2015-12-31 AAÂ 2015-01-01Â 2015-03-31Â BBÂ 2016-01-01Â 2016-03-31Â CCÂ 2017-01-01Â 2017-03-31Â DDÂ 2017-01-01Â 2017-03-31
declare @parent table (Id int not null primary key, StartDate date, EndDate date)
declare @child table (Id int not null primary key, ParentId int not null, ChildTypeId char(2) not null, StartDate date, EndDate date)
insert @parent select 1, '1/1/2015', '12/31/2015'
insert @child select 1, 1, 'AA', '1/1/2015', '3/31/2015'
[Code] .....
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Apr 23, 2007
Hello All,
I have a SSIS Package with a "Execute Package Task" to call a child package. I am trying to have the master/parent package complete its execution regardless the outcome (failure or success) of the child package. The overall structure of the master package is:
1. Perform Pre-load tasks (stored procedure).
2. Execute Package Task (call child package)
3. Perform Post-load Tasks (stored procedure)
I have try everything and cannot get the results that I want... I have tried the combination of "failparentonfailure", "forceexecutionvalue", etc. The master package stops at childs failure. I would like to resume to completion
Any ideas out there?
Rohan
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Nov 14, 2006
We are using SSIS for the first time. My team is working on a project that involves putting a date time stamp into a series of tables. These tables are being assembled in a series of child packages being executed by the parent. When the parent runs, we evaluate our timestamp variable as a GETDATE() expression and pass it to the children to be included as a derived column. We don't want the actual runtime of each step to be the timestamp, just the start of the batch (parent).
In order to get the variable to pass over to the child, we needed to set the package location to "file system"instead of "SQL Server". It seems unusual that this would be so. Are we doing something wrong?
What implications does this have for deployment? Will we need to customize the packages for each instance we plan to run this on? Can you have a parent run a child package on a different instance? This would be a performance plus since we have really huge source databases and would like to distribute the processing.
Hmmm, my boss just told me to scratch the whole idea of parent-child and go with a control table to store the variable for all the packages to access. Oh well, I'm still interested in why this is so cumbersome when really its just passing a parameter from one procedure to another.
Oh, and I think you could use a spellchecker on this message box. At least I could use one.
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Mar 6, 2007
Hi there,
sorry if the message seems a bit garbled i cannot see the textbox properly with ie7/ff
anyways. the situation.
childpackage contains a loop-container. in there i use an ole-db-source with a variable
based on an expression. ie. "select * from foo where bar=" + len(@[bar]) == 0 ? "initial" : @[bar] + " and etc=1"
where bar is the variable that is set by the loop.
this works great.
however i need to call this package several times, only the expression is a tad different.
so i need a scripttask that sets the expression correctly, then i call the childpackage
and map the current-expression to the expression in childpackage.
how do i do that? or am i doing it wrong?
my script-task looks something like:
dts.Variable("theVar").Expression = " ""select * from foo where bar="" + len(@[bar]) == 0 ? ""initial"" : @[bar] + "" and etc=1"" "
in the childpackage i have a package-conf that maps thevar to thequery with target-object expression.
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Sep 15, 2006
Hi All,
May be I am doing something wrong over here, but I have been trying in vain to test out a simple scenario where I can use my Parent Package configurations in my Child package. I have two packages ready and can someone please walk me through this process. Appreciate all help
Thanks
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Jul 12, 2007
I have an ASP.NET application that calls a SSIS package. The SSIS package internally calls some other child packages. I observed that sometimes some child pacakges are not even called by the parent. and the behaviour is very indeterminate. sometimes they work fine. sometimes they don't. There is no clue available for this behaviour when the pacakges are not executed. (One general observation is that the memory consumption is very high. but that is the case always.)
I have enabled logging on all child packages. The log is not updated at all when the child packages failed to execute. i.e. the package execution does not start.
Could somebody explain why this is happening? any suggestions/ similar experiences?
Regards
Saurabh
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Aug 7, 2007
I am trying to figure out how to run an SSIS package that is encrypted but also has a child package which is encrypted. I am trying to run from the cmd line using dtexec and specifying DECRYPT <pwd> for the parent package but how do you specify for the child package.
Please help if you have seen such an issue before or you have a work around.
Thanks
Newbie
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Dec 4, 2006
I have a parent package which calls a number of child packages. Occasionally, I have one child package which starts up and appears to finish but the parent package never gets notification that the child has finished. If I view this in Management Studio's in Integration Services, I can view the packages that are running and only the parent package is running. Because it never gets control back, the next child package will never get started and the parent package will continue to run and never finish.
Any idea what could be happening??
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Apr 30, 2007
I run into some issues and really need some expert help here.
Here is the problem. I have two packages (parent.dtsx and child.dtsx). Both package have its own configuration file (parent.dtsConfig and child.dtsConfig). The file Child.dtsConfig contains a variable (i.e. "X") that is to be used by Child.dtsx.
Inside parent.dtsx. there is a package-task that calls into Child.dtsx. It worked perfectly well if I run parent.dtsx using Dtexec or from inside SSIS's IDE.
Now I want to programmably call "parent.dtsx" from my C# code. I loaded package using "app.LoadPackage"... Inside C# code, I want to reconfigure Child-package's variable ("X"). I then loaded in "Child.dtsx". However when I run "parent.dtsx" and child.dtsx still loads the original value for "X". The reconfigured value for "X" is not updated.
Please help on how to get around this issue.
Thanks.
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Oct 26, 2006
So I have a parent package that calls another package using the Execute Package Task. When I run the child it runs fine but when I run it from the parent i get this msg...Any ideas?
Error: 0xC00220E4 at Execute VR Account Load: Error 0xC0012050 while preparing to load the package. Package failed validation from the ExecutePackage task. The package cannot run.
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Aug 13, 2007
In respect to Parent / Child packages, can some one correct me if I'm wrong.
Even if connection managers are created in Parent package, the same needs to be created in child packages if they need to connect to database. On the other hand I can just create connection strings in variable in parent package(instead of connection managers itself) and use parent package variable configuration to configure the connection string of child package with the variable value.
Sorry If I'm confusing
The same with variables, the parent variable needs to be mapped to a child variable(using parent package variable config) to be used in child package, it cannot be used as it is.
Thanks
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Aug 24, 2007
I have a parent package "A", I also have 4 child packages "B","B1","B2",B3"
In BIDS, I created a file connection in the package "A" to connect to the child packages. So whenever I want to run B1 or B2, I change the path in the file connection to point to B1 or B2 and so on. Since the developement environment is File system this works perfectly fine.
But in the Test / Production environment all packages are stored in the Sql server. How can I paramaterize the child package connection so that I can use configuration / variables to select which child package to execute.
Thanks
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Oct 27, 2006
I have two issues:
I have a simple parent that uses an Execute Package Task to call a simple child package. The child package has a Data Flow that I disabled. When running the child package by itself, the data flow task is bypassed. When running the package via the parent the data flow task executes.
Second issue is when you disable the package configurations in the child, the parent doesn't recognize that it's diables and tries to load the configurations.
It's almost like there are some settings in a child that get ignored by the parent??
Anyone else experience this?
thx
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May 3, 2007
Hi,
I've found this problem that when I change settings in my configuration file it does not automatically apply to all child packages which uses the same configuration file if run from a job in SQL Server Agent. I need to open the package and save it again from BIDS. I use one "load group" package to execute all other packages.
Is there a way from the job configuration to set a setting so the package allways will have the newest configuration?
Regards
Simon
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Jun 15, 2006
Supose I have two records in a parent-child relationsuip (actually I have many more such records). Does SSIS offer any support ask for inserting one record into the parent table, the other into the child table, and updating the foreign key of the child to point to the parent?
TIA,
Barkingdog
P.S. I have to do just this as part of the datawarehouse test I'm running. Seems like a common task but I don't recall anything in SSIS addressing the issue.
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Jan 13, 2015
I have set up an FTP connection that tests successfully. I can log on to the FTP site with the same credentials and see my root folder, and within that, two more folders. In my FTP task, I want to receive files to my local machine. The problem is that the only remote path available is not at the root level, and the only thing I can see are files from one of the child folders, but not the child folder I want.
Is it possible in the remote path to change folders? The remote path just shows a "/", which I thought would be the root level, but it is somehow linked to a child folder.I've tried various combinations to get to the folder I want, /root folder/child folder, but that gives the error that the folder does not exist.
If I open the FTP Task Editor, click on File Transfer, and click the ellipses for the Remote Path, the Browse For File box opens, with a "/" in the Location section, and a list of files in the child folder that I do not want to be in. If I click the "Up Directory" button, I get the message "Already at top level directory".
how I can get the files from one particular folder on the FTP site?
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Dec 3, 2007
I have created a SSIS package with a Foreach Loop including a Data Flow Task, which in turn include a Row Count component which pass the row count value to variable with package scope. The variable is used in an Execute SQL Task following the Data Flow Task.
The package executes successfully when executed on its own, but when executed as a child from a parent package (which only include an Execute Package Task) the variable from the Foreach Loop becomes NULL.
There are a lot of other variables in the package receiving values dynamically without any problem, the row count variable however is the only variable in the package that receives a value as part of a Data Flow (and used in following tasks within the Foreach Loop).
Why does the variable become Null? For your information, I am using a variable with package scope and no variables from the parent package are used or passed from the child package to the parent package.
(For your information, we are running the 64 bit version)
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