Conditional Execution In The Control Flow Via Script Task

Oct 25, 2006

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:

If FileExists Then
execute dataflow
Else
exit w/o error
End If

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?

Thanks in advance.

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Conditional Control Flow Element

Jun 22, 2007

Hi:

A branching element is critical to any process flow. Currently, as far as I know, there;s only a Conditional Split Data Flow Element. There is no direct way I can branch out in a control flow.

In some cases, I could branch by using a conditional operator ?: to either create a dynamic sql string for each patch, or a package name for a Package Execution task and so on.

This approach is not always good enough.

Are there others out there who want a Conditional Control Flow element?

TIA
Kar

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Jun 14, 2006

Hi

I have an application like fetching records from the DataBase(MS Access 2000) and results i have to use in Script Task. At present i have used the record fetching query,connection string in Script itself. I would like to use in Independently. Is there any Tools like (Control Flow Tools like Execute SQL Task) are there to fetch the result set from Acccess and can use the fetching results in Script Task....

Thanks & Regards

Deepu M.I

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Apr 18, 2007

Hello all,

Is there documentation somewhere about multiple execution paths in SSIS control flow? I didn't find documentation anywhere. I have a situation where I have two tasks that take considerable time, but could be executed in parallel (to speed up things) and I was wondering whether SSIS supports parallelism.

To illustrate the issues in simultaneous execution, I created a test SSIS package. In the package, I have five tasks, let's call them T1, T2, T3, T4 and T5. The taks are connected with "green arrows" like this:

T1->T2

T1->T3

T2->T4

T3->T4

T5 is not connected. The tasks can be e.g. Send Mail tasks, that's not relevant to this issue. I put a breakpoint in each task and execute the package.

When I execute package, T1 and T5 become active, i.e. the arrow that displays where the package execution currently is, is in two tasks simultaneously. Now F10 (step over) doesn't seem to work "Unable to step. Not implemented". If I press F5 nothing happens. After I press F5 for a second time tasks T1 and T5 and executed. Why don't they execute with the first pressing of F5? I would additionally like to know whether these two tasks are executed in parallel or sequentially, i.e. in the same thread or in two threads? Is there documentation of this?

The execution stops at T2&T3. Again, pressing F5 doesn't do anything, but the second time I press F5 T2 and T3 are executed.

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Mar 22, 2006

I have a situation where I'd like to conditionally execute the first task in a package based on the contents of a user variable.

If user variable "Var1" is false I want to begin execution with the first task.

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

My first thought of course was SequenceContainer, but the same issue would exist for the first task in a SequenceContainer.

Is there a way to do this?

Thanks!

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Jan 26, 2006

I've searched everywhere for this but can't find the answerI want to run a DTS package that simply executes a SQL statement to geta count of rows in a table, if the resulting number is greater thanzero I want to execute another step in the same package, else justquit.I don't to pass global vars from one package to anotherHow can I do this?Any help would be great

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Apr 24, 2007

Hi

What SSIS Task or process can i use to stop my Control Flow Process from running?

I created a SQL Task to do a count on a table to see if there is data, if the count is > 0 then the Control Flow task must continue, else it uses a RAISERROR statement which i use with the event handler, but i want to put something in the event handler to stop the process then and not continue?

Any help will be greatly appreciated.

Kind Regards
Carel Greaves

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Nov 12, 2007

Hi Guys,

This is a question to the SSIS development team. I would like to know what are the requirements to implement custom SSIS Control Flow task in C++ . There is a documentation describing the process when implementing a managed task, but no such documentation exists for implementing a task in C++.

Thank you,
Ivan

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Apr 25, 2008

I have one Data flow, which trasfer data into two table (Parent & Child) .

My question is : Is there a way, i can load data first into parent and then child table. because child table getting load first after that parent table loading. (Execution should be Source Parent --> Destination Parent) First , (Source Child --> Destination Child) Second.
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,
How to define my own sequence execution at the Data flow task (Source - Destination) ?

Thanks

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Control Flow Task Error Shouldn't Fail Package

Mar 1, 2007

Hi all,

I have a Send Mail Task in my control flow to notify users that the processing is done. I want to avoid the package to fall in error if the Send Mail task failed.

What is the best practice to do that ?

Should I raise the MaximumErrorCount of theSend Mail Task ? Should I play with ErrorHandler ?

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SSIS Data Flow Task Execution Priority

Apr 13, 2007

I have a package that loads staging tables from an Oracle source DB. In the data flow tab I have 30+ read table/write table task combinations. When I run the package 3-4 of the read/write combos execute at a time. What I'm trying to control is the priority order of the combo execution. My goal is to minimize to total load time by having the larger table transfers run first and the smaller table transfers fill in until they are all complete. Currently, the largest table (16 million) transfers last (because it was the last combo that I created?).

Thanks,

Dave

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Deadlock Issue During Data Flow Task-Execution

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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Error When Using A Create Table Execute SQL Task Statement In Control Flow Prior To Using An OLE DB Destination Container...

May 18, 2008

SSIS Newbie Question:

I have a simple Control Flow setup that checks to see if a particular table exists. If the table does not exists, the table is created in an alternate path, if it does exist, the table is truncated before moving to a file import Data Flow that uses an OLE DB Destination to output the imported data.

My problem is, that I get OLE DB package errors if the table the OLE DB Destination Container references does not exist when I load the package.

How can I over come this issue? I need to be able to dynamically create the table in an earlier step, then use that table to import data into in a later step in the workflow.

Is there a switch I can use to turn off checking in the OLE DB Destination Container so that it will allow me to hook up the table creation step?

Seems like this would be a common task...

Steps:

1. Execute SQL Task to see if the required table exists
2. Use expresions to test a variable to check the results of step 1
3. If table exists, truncate the table and reload it from file in Data Flow using OLE DB Destination
4. If table does not exist, 1st create it, then follow the normal Data Flow

Can someone help me with this?

Signed: Clueless with a deadline approaching...

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How To Pass Parameter Froon Control Flow To Data Flow

Feb 14, 2006

Hi, All,

I need to pass a parameter from control flow to data flow. The data flow will use this parameter to get data from a Oracle source.

I have an Execute SQL task in control flow to assign value to the Parameter, next step is a data flow which will need take a parameter in the SQL statement to query the Oracle source,

The SQL Looks like this:

select * from ccst_acctsys_account

where to_char(LAST_MODIFIED_DATE, 'YYYYMMDD') >?

THe problem is the OLE DB source Edit doesn��t have anything for mapping parameter.

Thanks in Advance

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HELP: How Do I Pass Variables From Control Flow To Data Flow

Mar 9, 2007

I have an Execute SQL Task that returns a Full Rowset from a SQL Server table and assigns it to a variable objRecs. I connect that to a foreach container with an ADO enumerator using objRecs variable and Rows in first table mode. I defined variables and mapped them to the columns.

I tested this by placing a Script task inside the foreach container and displaying the variables in a messagebox.

Now, for each row, I want to write a record to an MS Access table and then update a column back in the original SQL Server table where I retreived data in the Execute SQL task (i have the primary key). If I drop a Data Flow Task inside my foreach container, how do I pass the variables as input to an OLE DB Destination on the Data Flow?

Also, how would I update the original source table where source.id = objRects.id?

Thank you for your assistance. I have spent the day trying to figure this out (and thought it would be simple), but I am just not getting SSIS. Sorry if this has been covered.

Thanks,

Steve

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Jan 17, 2008

Dear All!
My package has a Data Flow Task. In Data Flow Task, I use a Script Component and a OLE BD Destination to transform data from txt file to database.
Within Data Flow Task, I want to call File System Task to move file to a folder or any Task of "Control Flow" Tab. So, Does SSIS support this task? Please show me if any
Thanks

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May 17, 2007

Hi everyone,

Primary platform is 64 bit cluster.

How to move information allocated in SSIS variables from Data Flow to Control Flow layers??

We've got a SSIS package which load a value into a variable inside a Data Flow. Going back to Control Flow how could we retrive that value again????

Thanks in advance and regards,

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Jan 12, 2006

I'm currently setting variables at the package level with an ExecuteSQL task. This works fine. However, I'm now starting to think about restartability midway through a package. It would be nice to have the variable(s) needed in a data flow set within the data flow so that I only have to restart that task.

Is there a way to do that using an SQL statement as the source of the value in a data flow?

OR, when using checkpoints will it save variable settings so that they are available when the package is restarted? This would make my issue a moot point.

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Mar 7, 2008

Hello everyone,

Is there a way in order to execute a subscribed report based on a certain criteria?

For example, let's say send a report to users when data exist on the report else if no data is returned by the query
executed by the report then it will not send the report to users.

My current situation here is that users tend to say that this should not happen, since no pertinent information is contained in the report, why would they receive email with blank data in it.

Any help or suggestions will be much appreciated.

Thanks,
Larry

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Jul 22, 2007

Hi all! I recently started working with SSIS and one of the things that is puzzling me the most is what's the best way to go:

A small control flow, with large data flow tasks
A control flow with more, but smaller, data flow tasksAny help will be greatly appreciated.
Thanks,
Ricardo

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Dec 28, 2007

Hi,
I'm trying to implement an incremental data pull (Oracle to SQL) based on Andy's blog:
http://sqlblog.com/blogs/andy_leonard/archive/2007/07/09/ssis-design-pattern-incremental-loads.aspx

My development machine is decent: 1.86 GHz, Intel core 2 CPU, 3 GB of RAM.
However it seems the data flow task gets hung whenever I test the package against the ~6 million row source, as can be seen from these screenshots. I have no memory limitations on the lookup transformation. After the rows have been cached nothing happens. Memory for the dtsdebug process hovers around 1.8 GB and it uses 1-6 percent of CPU resources continuously. I am not using fast load to insert new records into my sql target table. (I am right clicking Sequence Container 3 and executing this container NOT the entire package in the screenshots)

http://i248.photobucket.com/albums/gg168/boston_sql92/1.jpg
http://i248.photobucket.com/albums/gg168/boston_sql92/2.jpg
http://i248.photobucket.com/albums/gg168/boston_sql92/3.jpg
http://i248.photobucket.com/albums/gg168/boston_sql92/4.jpg
http://i248.photobucket.com/albums/gg168/boston_sql92/5.jpg
http://i248.photobucket.com/albums/gg168/boston_sql92/6.jpg

The same package works fine against a similar test table with 150k rows.
http://i248.photobucket.com/albums/gg168/boston_sql92/7.jpg
http://i248.photobucket.com/albums/gg168/boston_sql92/8.jpg

The weird thing is it only takes 24 minutes for a full refresh of the entire source table from Oracle to the SQL target table.
Any hints,advice would be appreciated.

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Hi,

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Apr 22, 2008

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ddlGroup =

ADVANCED DEVELOPMENT

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HEAD TEST

INK R&D

JETTING

PROCESS

RELIABILITY

The SQL query that shows my logic is:
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Aug 22, 2007

Hi there.

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Community
Total # of Respondents
Resident's Overall Satisfaction Rating
Quality of Repair

May '07
41
3.6
5.0

April '07
14
1.8
3.0

Q2 '07
55
2.7
4.0

March '07
36
3.6
3.0

February '07
28
4.0
1.2

January '07
22
2.2
4.0

Q1 '07
86
3.3
2.7

YTD '07
141
3.0
3.2

December '06
33
3.8
4.2

November '06
27
2.6
5.0

October '06
42
1.8
3.0

Q4 '06
102
2.7
4.1

September '06
58
4.0
2.2

August '06
84
2.0
1.6

July '06
52
3.2
3.4

Q3 '06
194
3.1
2.4

June '06
40
2.4
4.2

May '06
41
3.6
5.0

April '06
14
1.8
3.0

Q2 '06
95
2.6
4.1

March '06
67
N/A
3.8

February '06
38
N/A
2.8

January '06
N/A
3.8
N/A

Q1 '06
105
3.8
3.3

YTD '06
496
2.9
3.5

Rolling 12 Month Average
477
2.9
3.3'
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Apr 20, 2008

I am new to SSIS can anyone tell me the diff between control flow and dataflow. if all the transformation are done using dataflow than why do we use control flow. Sorry if I am asking you very basic question.

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Jan 3, 2005

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Thanks
Ragu

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May 4, 2006

Hi,

I am trying to create a simple BI Application for SSIS. In Visual Studio 2005 I just get a Data Flow Task from the toolbar and add it to the project. When I double click it I get the following error:

The task with the name "Data Flow Task" and the creation name "DTS.Pipeline.1" is not registered for use on this computer.

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Any suggestions why this is happening and how to fix it?

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Mar 12, 2008

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Aug 22, 2007

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Feb 28, 2008

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Oct 2, 2007

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A.

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