How To Assign User Variable Value To The Derived Column, In Data Flow Task
Dec 19, 2006
Hi:
In the derived column transformation editor, I have a Derived column name called FileGroupID. I would like to pass in a value for this column from a variable that I have set earlier in the scope. Can someone let me know, how to write the expression that does that and where do I specifiy that expression. I am thinking its the expression field in the derived column transformation editor. My main question is how to actually write the expression, what is the syntax to pull the variable value? Thanks.
MA2005
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Mar 13, 2007
Hi Everyone,
In the data flow task, i have done a group by and now i have a single row.... I want to assign the value in this row to a package variable.... Without using the script component .......Any suggestions ??
Regards,
Manu
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Mar 13, 2008
Hello All,
I have a user variable , say max_id, which retrieves the max id from a primary key column of a table.
now in Data Flow Task, I have a Derived Column where I am creating a new column which will have the values max_id + 1 for the first record, then max_id + 2 for the second record of the derived column and so on..
and then I am mapping this derived column with that primary key column of the table, so that the new id's are different than the old ones which are already in the table, so there wont be any primary key violation.
I cannot make that primary key column as an Identity column.
my question is how do I increment this max_id user variable everytime ?
Regards,
Kapadia Shalin P.
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Mar 14, 2008
hi,
I have an aggregate transformation in a dataflow task.
It has only 1 output value.
I'm trying to assign this value to a user variable, but I can't figure out how to do that.
i can hack something silly together - like write the value to the db, and then get it out, but I there has to be an easier way..
Thanks a lot.!
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Sep 4, 2007
how to pass the column that has a numeric(12,0) data type to user variable in SSIS? what kind of variable data type should I choose?
if i select int64, it keep giving me an error:
Error: 0xC001F009 at Row by Row process: The type of the value being assigned to variable "User:bject_Key" differs from the current variable type. Variables may not change type during execution. Variable types are strict, except for variables of type Object.
there is no numeric data type in variable..
if you click the drop down box in variable data type, you can only see the below data type:
Int32
int64
Object
Sbyte
single
string
uint32
uint64
boolean
byte
char
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Jan 5, 2006
I need to know what a table's max row Identity is part way thru a data flow. I can't get it at the beginning of the data flow. I need to either (1) add it to the data buffer part way thru or (2) set it into a package variable and then reference the var in a script component.
I've not found a way to add a database column to the data buffer without doing a lookup for each row (too slow and not appropriate here) or some goofy oledb source and then merge join into the data buffer on a contrived join.
I've read questions about referencing package vars in scripts but I can't get that to work. DTS.Variables("varname").Value isn't recognised when I code it up.
Anyone have an idea or solution for either one of these? If you're gonna explain the script code, please include the entire snipet including the INCLUDEs, etc.
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Jul 22, 2015
how to declare multiple derived columns in SSIS Derived Column Task in one attempt.as i have around 150 columns coming from Flat file. I had created the required Expression in Excel and now i want add those in derived column task but its allowing only 1 expression at a time.
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Mar 28, 2007
Dear friends, can any one tell me how to assign null to the expression value in derived column transfromation editor?
thanks,
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Mar 7, 2008
i have too many DTS packages to migrate to SSIS, and while examining a DTS package in BIDS (converted with the migration utility) i tried to edit the resulting migrated package, which opened the DTS interface with the two connection icons joined by the big fat arrow with a gear on it...not exactly what i had in mind, iow, it looks like SSIS on the outside, but its still DTS on the inside.
So I stripped out a series of components from a more complex package hoping that simplifying it would reveal the contents of old DTS Transformations tab at least partially set up in a Derived Column transformation.
Can i get there from here, or must i recreate every stinking definition in a derived column manually from the ground up?
thanks very much for your help
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Sep 27, 2007
Hi,
Is there a way to accomplish one- many or many -one or many - many column mappings in the SSIS data flow task or using any other tasks. We were able to do this in DTS Transform data task. Also is it possible to edit the mapping like:
dest column1 = Right(dest column1, 3)
Thanks.
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Nov 30, 2006
Greetings once again,
I am trying to achieve a seemingly simple task of assigning datetime value to a user variable at the point my package starts running. How can I do this without using a SQL Script Task? Should I be using a script task for this or is there a simpler way to achieving the same thing?
Thanks in advance.
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Sep 4, 2007
Has anyone done this? I can't find anything in the documentation
that describes this. The closest I get is to the InnerObject property
of the TaskHost class. There is an example of programming a bulk
insert task. But I can't find anything on programmatically setting
the column mappings (source to dest) of a simple data flow task. Any
help is appreciated!
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Jun 13, 2007
Hi,
Let's say that the query in my SQL Task returns a single integer number.
How can I put that single number in a variable?
Thank you.
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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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Jul 28, 2015
I have a excel file which has a column called "Code" and their values are A,B,C,D,E,F,G,H. I want to create a new column called "status" based on the values of "Code".
Code:
A
B
C
D
E
F
G
H
If A,C,E,G then "status" = "Active" else if B,D,F,H then "Status" = "Inactive". I like to do it using "Derived Column".
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Jun 2, 2011
In my current project i have a requirement to assign value of an aggregate transform to a variable. But i need to accomplish it without using a script task.
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Dec 18, 2007
Greeting.
I have a dataset (ORDER BY Column1) like the following in the data flow task pipeline
Column1 Column2
1 A
1 B
2 C
2 F
3 T
3 R
3 X
4 M
I only need data of 1, A;
2, C;
3, T
4, M
That is when Column1 value changes. I think we can store the column1 value in a variable as a previous row value. Then I can compare the variable value with the current row value and see if the column1 value changes. Can anyone please help me how to implement this? Or if there is other way to implement it
.
Thanks.
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Sep 11, 2007
I have a derive column( sequence) transformation in data flow , i am trying to assign this column to a variable , so that i can use it in the SQLtask control flow... how can i do this? can you show me some examples?
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Jan 12, 2007
Hello,
Please can anyone tell me if or how I have to cross reference to a user defined variable from a script task in the SQL of a Data Reader Source?
The script task creates a variable for the last Sales Ledger Session. The SQL in the data reader source that updates the DW sales invoice lines file based upon those invoice lines where the session number is greater than the value from the script task.
The SQL command in the custom properties doesn't cross reference back to the variable.
If anyone can help or needs further detail to help please post a resonse.
Thanks,
Marcus Simpson
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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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May 11, 2007
I am trying to pass a variable set by a Row count transformation to a derived column transformation. There are actually three separate Row Count transformations storing to different variables. In the derived column trans. the expression i am using is @[User::ClientCount] and the variable type is Int32 and I am passing it to an I4 database column. After the derived column trans. all rows just come out with 0s in the row count columns. Does anyone know why this would be? Please let me know if you need more information.
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Mar 29, 2006
Hi there,
is there a way that I can set the value of a column to the currrent user in a derived shape?
For instance if I want to set the value of a column to the current data I can merely use GETDATE().
What is the current user equivilent?
Thanks
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May 14, 2007
How do you replace quotes in an expression
I mean for example if I needed to replace xx in a string with empty string then the following works: REPLACE(SelectedString, "xx","")
But the example I have needs to actually replace quote marks in a string with an empty string and REPLACE(SelectedString, " " ","") doesn't work. I tried guessing a few option like "E or &QTE or something...
Any ideas ?
Thanks
Richard
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Feb 2, 2006
I am moving data from an oracle database to sql server. Two of the source fields are dates, which sometimes contain values I know to be incorrect ('0001/01/01' and '1900/01/01').
I'd like to use either the derived column or script task (or any other appropriate one) to update these incorrect values (in both columns) to null before inserting into sql server, smalldatetime field.
In sql 2000 dts, I would simply use a VBScript IF statement, but I'm somewhat clueless when it comes to .Net.
Does anyone have any ideas or sample code that may help?
Thank you much.
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Apr 10, 2008
Hi,
Is there a way to truncate a number to a certain number of decimal places in the SSIS Derived Column component (similar to TRUNC in excel)?
Thanks!
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Apr 20, 2006
I have a package that fails as soon as it hits the first Data Flow that contains a Derived Column task. The task takes three date columns and looks for a date of 6/6/2079. If it is there, it is replaced with a NULL. This task worked fine until I installed the Non-CTP version of SQL 2005 SP1, earlier today. (I went from RTM 9.0.1399 to SP1 9.0.2047)Does anyone have any ideas?
Here is the error I am trapping:
An error occurred while evaluating the function.
The "component "Update Max Date Value to NULL" (346)" failed because error code 0xC0049067 occurred, and the error row disposition on "input column "WeekEndingDate" (455)" specifies failure on error. An error occurred on the specified object of the specified component.
The ProcessInput method on component "Update Max Date Value to NULL" (346) 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.
Thread "WorkThread0" has exited with error code 0xC0209029.
I tried to configure the error output to ignore the failure. The task succeeded. It did not insert anything, however, for the three columns in question. It then failed on the next Data Flow that contained a Derived Column task. I tried to pre-populate the columns with a default date, but no go. Any help would be appreciated.
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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.
Then when I try to delete it it gives this other error:
Cannot remove the specified item because it was not found in the specified Collection.
I am creating this application in an administrator account in this computer, so I doubt the problem is related to permissions. I am running SQL Server 2005 and Visual Studio 2005 in WinXP Tablet PC Edition.
Any suggestions why this is happening and how to fix it?
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Mar 12, 2008
I am using SQL 2005 SSIS. I am joining several large tables and then the move result into another table in the same database.
I would like know which method is faster:
Use Execute SQL Task to insert the result set to the target table
Use the Data Flow Task to insert the result set to the target table. (Use OLE DB source to execute SQL command and then use the SQL destination)
Could you tell me why then other is slower?
Thanks.
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Oct 2, 2007
I have a stored procedure that is executed via a sql script task that returns a full result set. I map this result set to a variable or object type. Is there a way to use this variable as a data source in a subsequent data flow task?
A.
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Apr 24, 2006
My derived column transformation with a user variable expression displays the user variable's default and not its assignned value.
Background: I built a script component that seems to effectively assign a new value to a user variable. I use local variables within the component, make the assignment in the PostExecute subroutine, and check by writing the user variable to a messagebox there.
In the derived column transformation I create a new column and insert the user variable in its expression field, add a data viewer, and send it to a data destination. The data viewer shows the user variable default and not the assignned value.
I replaced the user variable with a system variable in the expression field and that works fine.
Have folks successfully used this scenario before? Any ideas? Thanks.
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Dec 20, 2007
Hi,
I'm trying to get a record count out of a databse using OLE DB Source and row count tasks but keep getting an error. I set up a variable as int32 and select the variable name in the row count task and when I go to the Input Columns tab to select a field to count, it gives me this error:
Error at Data Flow Task[Row Count[505]]: The component "Row Count" (505) has forbidden the requested use of the input column with lineage ID 32.
I don't even know what this means?
thanks,
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Feb 23, 2007
Hi,
I created a package with SQL 2005. The package gets the Access DB and then inserts it into SQL Server.
If I open the package in .NET, I can see the SQL Task and Data Flow Task. The SQL Task has a property sqlstatementsource, which has the necxessary SQL code to create the tables.
How can I tell the SQL Task to recompile the SQL code if I give it another DB name, because the tables differ and don't map in the Data Flow Task
Thanks
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May 18, 2006
Hi,
I would like to know is there any way we can assign/change the value of variable within data flow without using script component?
Thx.
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