Task Execution Order

May 20, 2006

Hi,

Is there any way to enforce task execution order within a control flow? I need to have tasks execute after each other, because for example Task B depends on the execution of Task A.

Doesn't the success constraint enforce execution order? When I run my package the tasks seem to execute in a random order which is not what I want.

What I am trying to do is:

Loop through all Xml files in directory

For each Xml file:
For categories, products & fields:
Truncate staging table
Insert data from Xml file into staging table

After all Xml files have been processed then import data from staging to main tables

Here is my control flow:
http://www.myfootballonline.com/flow.png

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Jun 5, 2001

I want a task to run last after all of the other task have run. How do I ensure that this task will run last?

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If I have a List with three tables in it, and let's say that in the first two
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variable in the 3rd table will always be the result from the first two
tables?

I mean will it always be true that the first two tables are analyzed and
"executed" before that third table?

Thanks for any help. If there are any links on this topic on the microsoft
web site, please specify them. I have not been able to find anything

Thank you!

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I have a package that has 12 data pump tasks all executing in parallel.

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This seems to work for 4 or 5 of the pump tasks but, the rest of the rows in the table are all the same because the remaining pump tasks are all executing before the sprocs.

Is there a way to make sure that the entire set of job steps completes, before starting another job set of steps while still keeping them running in parallel.

I had wondered if there was a way to use the PumpComplete phase of each pump step to fire off the sproc, but can't see how you execute the step.

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UPDATE table3 ...;
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How about here?

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Hello All,

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Hi

I am designing a ETL system to extract data from multiple systems. I have designed a batch control application and database to manage the process. I was thinking of extending this to include the execution of the SSIS packages. I would basically store all of the package details in the database, and when I am executing a particular systems load, I would get the list of packages required and loop through them in a ForEach loop. The question I have is can I guarantee the order of execution? I will put an order or execution in the DB and when I select the data, I can order by these columns.
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Hi,

I'm facing a problem with my SSIS package regarding the execution order of tasks. I am using my package for the purpose of loading data from XML to staging tables in the database, and have a loop to process all XML files.

As a precondition to the loading action itself, I am running a stored procedure against the database (using the ExecuteSQL task) to check whether all staging tables are empty. The output parameter of that stored procedure is mapped to a variable I have defined in the SSIS package, so I can use it as a basis for the decision whether to run the loading action or not.

In order to test my package I added a script task, right after the execution of the stored procedure with a precedence constraint, that pops up a messagebox with the value of the stored procedure return value stored in the package variable.

The problem is that for the first iteration of the loop, the variable value presented by the messagebox is incorrect (equals to the initial value I assigned to the variable), and it looks like the script task starts before the stored procedure execution task finishes and its output value is stored in the package variable.

Please assist.

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GO

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If "Var1" is true I want to begin execution at the second task.

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hello to every body.. well i have a problem.. well i created a package the task of which is to update thedimensions and the fact tables from the tables of source.

i created a configuration file with all the parameters that are nedded (connections managers; parameters of packages).this config file will include all the paremeters need for the execution of other packages

In that package i call an other package (execution package task). this package normally will take the parameters of the parent package isn't it??(i put the parameters of this package to the config file of the parent package).

i must also note that for the second package called there is also a package...

i must also note that i have 2 DWHs (a and b) for testing.

the problem is that when i execute the parent package to DWH b , the sacond package called do not take the parameters of the parent package. instaed it looks to its XML configuration file(in a different location of the config file of the parent package) which contains the connection parameters to DWH a and it calls strored procedures from the DWH a (instead of calling at SP from DHW b).

any ideas??

thnx a LOT0

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Hi,

I have created a SSIS package with Web Service task in it,which execute remote server web service

I got following error during Web service execution

Note:I am not using proxy settings,i also checked HTTP connection and it suceeded

Error:[Web Service Task] Error: An error occurred with the following error message: "Microsoft.SqlServer.Dts.Tasks.WebServiceTask.WebserviceTaskException: Could not execute the Web method. The error is: Object reference not set to an instance of an object.. at Microsoft.SqlServer.Dts.Tasks.WebServiceTask.WebMethodInvokerProxy.InvokeMethod(DTSWebMethodInfo methodInfo, String serviceName, Object connection) at Microsoft.SqlServer.Dts.Tasks.WebServiceTask.WebServiceTaskUtil.Invoke(DTSWebMethodInfo methodInfo, String serviceName, Object connection, VariableDispenser taskVariableDispenser) at Microsoft.SqlServer.Dts.Tasks.WebServiceTask.WebServiceTask.executeThread()".

Please help..

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In my case its executing reverse. So i have foreign key constraints at child table , its giving foreign contraints error while running ssis package

Can any one tell me,
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Thanks

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Hi,

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Thanks

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Hi All,
I am newbie to SSIS.
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To design the task flow, I have two choice:
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Greetings.

I'm trying to conditionally execute a dataflow based on the presence of a data file. If the data file isn't present, I'd like to execute gracefully without error.

Logic is as follows:

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I've got the code ready to go, but I'm not sure how to do this conditional branch logic. Right now, the code calls the Dts.Results.Success / Failure. The problem, however, is Failure is exactly that... which doesn't result in the graceful exit I'm looking for.

Anyone have any ideas?

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Thanks,

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Feb 20, 2007

Hi, folks!

I got a serious problem with an SSIS-Import. My packages import from a foreign source into a kind of temp-table (actually it's not a temporary table, it�s just filled with data and truncated after completion of the package), do some transformations and then I got a data flow task that simply copies all the rows from the "temp" to the final table. I get the following errors (here there are two simultanious copy operations from two different "temps" into the same final table.

Error: 0xC0202009 at _temp to finaltable 5 2 1, OLE DB Destination [16]: An OLE DB error has occurred. Error code: 0x80004005.

An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80004005 Description: "Transaction (Process ID 68) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.".

Error: 0xC0209029 at _temp to finaltable 5 2 1, OLE DB Destination [16]: The "input "OLE DB Destination Input" (29)" failed because error code 0xC020907B occurred, and the error row disposition on "input "OLE DB Destination Input" (29)" specifies failure on error. An error occurred on the specified object of the specified component.

Error: 0xC0047022 at _temp to finaltable 5 2 1, DTS.Pipeline: The ProcessInput method on component "OLE DB Destination" (16) failed with error code 0xC0209029. The identified component returned an error from the ProcessInput method. The error is specific to the component, but the error is fatal and will cause the Data Flow task to stop running.

Error: 0xC0047021 at _temp to finaltable 5 2 1, DTS.Pipeline: Thread "WorkThread0" has exited with error code 0xC0209029.

Error: 0xC02020C4 at _temp to finaltable 5 2 1, OLE DB Source [1]: The attempt to add a row to the Data Flow task buffer failed with error code 0xC0047020.

Error: 0xC0047038 at _temp to finaltable 5 2 1, DTS.Pipeline: The PrimeOutput method on component "OLE DB Source" (1) returned error code 0xC02020C4. The component returned a failure code when the pipeline engine called PrimeOutput(). The meaning of the failure code is defined by the component, but the error is fatal and the pipeline stopped executing.

Error: 0xC0047021 at _temp to finaltable 5 2 1, DTS.Pipeline: Thread "SourceThread0" has exited with error code 0xC0047038.

Information: 0x40043008 at _temp to finaltable 5 2 1, DTS.Pipeline: Post Execute phase is beginning.

Information: 0x402090DF at _temp to finaltable 5 2 1, OLE DB Destination [16]: The final commit for the data insertion has started.

Information: 0x402090E0 at _temp to finaltable 5 2 1, OLE DB Destination [16]: The final commit for the data insertion has ended.

Information: 0x40043009 at _temp to finaltable 5 2 1, DTS.Pipeline: Cleanup phase is beginning.

Information: 0x4004300B at _temp to finaltable 5 2 1, DTS.Pipeline: "component "OLE DB Destination" (16)" wrote 5041 rows.

Task failed: _temp to finaltable 5 2 1

Warning: 0x80019002 at KDStat_alles_412: The Execution method succeeded, but the number of errors raised (7) 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.

Task failed: 412

Warning: 0x80019002 at kdstat_alles_master: The Execution method succeeded, but the number of errors raised (7) 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.

Error: 0xC0202009 at _temp to finaltable 1 2 1, OLE DB Destination [4468]: An OLE DB error has occurred. Error code: 0x80004005.

An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80004005 Description: "Transaction (Process ID 82) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.".

Error: 0xC0209029 at _temp to finaltable 1 2 1, OLE DB Destination [4468]: The "input "OLE DB Destination Input" (4481)" failed because error code 0xC020907B occurred, and the error row disposition on "input "OLE DB Destination Input" (4481)" specifies failure on error. An error occurred on the specified object of the specified component.

Error: 0xC0047022 at _temp to finaltable 1 2 1, DTS.Pipeline: The ProcessInput method on component "OLE DB Destination" (4468) failed with error code 0xC0209029. The identified component returned an error from the ProcessInput method. The error is specific to the component, but the error is fatal and will cause the Data Flow task to stop running.

Error: 0xC0047021 at _temp to finaltable 1 2 1, DTS.Pipeline: Thread "WorkThread0" has exited with error code 0xC0209029.

Error: 0xC02020C4 at _temp to finaltable 1 2 1, OLE DB Source [1]: The attempt to add a row to the Data Flow task buffer failed with error code 0xC0047020.

Error: 0xC0047038 at _temp to finaltable 1 2 1, DTS.Pipeline: The PrimeOutput method on component "OLE DB Source" (1) returned error code 0xC02020C4. The component returned a failure code when the pipeline engine called PrimeOutput(). The meaning of the failure code is defined by the component, but the error is fatal and the pipeline stopped executing.

Error: 0xC0047021 at _temp to finaltable 1 2 1, DTS.Pipeline: Thread "SourceThread0" has exited with error code 0xC0047038.

Well, it looks like those two processes simply deadlock each other. But there are 11 Simultanious Data Imports which all go fine. The Issue only occurs at those two. The structure of the packages is exactly the same everywhere.

Is it possible that a previous update-sql query hasen�t committed properly and locks the datasets?

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Hi,

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public override DTSExecResult Execute(Connections connections, VariableDispenser variableDispenser,IDTSComponentEvents componentEvents, IDTSLogging log, object transaction)
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/*
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Try

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part number leadtime

x 5

y 9

....

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thanks

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Group by a.OrderID

My question is what if I wanted to create a formula to something like:

UnitPrice * Quantity - DiscountAmount Where DiscountAmount = UnitPrice Quantity * Discount

Do I need to create a function for that? Also is it possible to have m y query as a table variable?

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