How To Change The Value Of A Variable Within Data Flow
May 18, 2006Hi,
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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Is There A Way To Set A Variable In A Data Flow From A SQL Statement (like In Control Flow)
Jan 12, 2006I'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.
How Should I Pass Variable To Data Flow
Apr 8, 2008Hi all,
By using for each loop container and script task, i am able to pick the file name from a specified folder to a user defined variable. Now i am trying to pass this variable to excel source (using data flow), but i am getting this error : -
===================================
Error at Data Flow Task [Excel Source [1]]: A destination table name has not been provided.
(Microsoft Visual Studio)
===================================
Exception from HRESULT: 0xC0202042 (Microsoft.SqlServer.DTSPipelineWrap)
------------------------------
Program Location:
at Microsoft.SqlServer.Dts.Pipeline.Wrapper.CManagedComponentWrapperClass.ReinitializeMetaData()
at Microsoft.DataTransformationServices.DataFlowUI.DataFlowComponentUI.ReinitializeMetadata()
at Microsoft.DataTransformationServices.DataFlowUI.DataFlowAdapterUI.connectionPage_SaveConnectionAttributes(Object sender, ConnectionAttributesEventArgs args)
Please can you suggest me how should i pass the vaiable to the data flow and how the Excel sheet will be selected there.
Hi all,
By using for each loop container and script task, i am able to pick the file name from a specified folder to a user defined variable. Now i am trying to pass this variable to excel source (using data flow), but i am getting this error : -
===================================
Error at Data Flow Task [Excel Source [1]]: A destination table name has not been provided.
(Microsoft Visual Studio)
===================================
Exception from HRESULT: 0xC0202042 (Microsoft.SqlServer.DTSPipelineWrap)
------------------------------
Program Location:
at Microsoft.SqlServer.Dts.Pipeline.Wrapper.CManagedComponentWrapperClass.ReinitializeMetaData()
at Microsoft.DataTransformationServices.DataFlowUI.DataFlowComponentUI.ReinitializeMetadata()
at Microsoft.DataTransformationServices.DataFlowUI.DataFlowAdapterUI.connectionPage_SaveConnectionAttributes(Object sender, ConnectionAttributesEventArgs args)
Please can you suggest me how should i pass the vaiable to the data flow and how the Excel sheet will be selected there.
Change Self Reference Values In A Data Flow Task
May 9, 2006Hi,
We migrate data from a legacy system to new system using SSIS. The primary key of legacy system is a user-defined sql server which holds alpha-numeric values. The primary key of new system is a big int(sequential numbers).
When we migrate data, we generate a sequential number for each legacy key(the primary key of legacy data) and insert data in to new system tables. The newly generated sequential numbers and the legacy keys are persisted in an intermidiate table for look up operations of child tables.
We are facing problem when we try to migrate tables which has self referring coulumns. For example a table called Employee has a column ManagerKey which refers to Key column of Employee table. We are struck up in defining data flow tasks to replace legacy ManagerKey column values with the new values(sequential values) generated during the migration process.
Please help me to solve this problem.
Regards,
Gopi
Setting Variable Values From Within A Data Flow
Feb 15, 2008Hello There:
I am running a data flow within a ForEach loop wherein I am computing a value called QuotaGap. When it is 0 I do not want any further execution of the loop. I am using a Conditional Transform within this dataflow that writes a record to a table only when the QuotaGap is NOT 0. However, I am unable to terminate the execution of the loop as I am still within the dataflow.
Now, the computation of the gap requires a value from another variable called NetPurchases. I tried using an ExecuteSQL task in the control flow but could not figure out how to pass the value of the variable NetPurchases into the select statement to compute the gap. For example, the select statement would read:
select (QuotaUpperLimit - ?) As QuotaGap from <<tablename>>
I tried setting the parameter as an input as well as an output and it did not work.
Then I tried passing the entire SQL as a string within a variable. This does not work either because in order to compute the math QuotaUpperLimit - NetPurchases, both variables need to be integers but then you cannot concatenate integres together, which is what we need to do to create the SQL.
The other reason I am going through these hoops I guess is that I have not figured out a way to set the value of a variable within a data flow. I compute the value for QuotaGap within the dataflow in a ForEach loop but I have no way to pass this result to a variable called QuotaGap without using an ExecuteSQL task or another ForEach Loop.
I have spent hours on this simple issue and so have given up and looking to the good friends in this forum for help.
If what I have stated is not clear please let me know and I will try to clarify things a bit.
Thanks!
Need Help On How To Passing Variable Inside A Data Flow
Jun 19, 2006
All,
Is it possible to passing variable at row level within a data flow? If so, what transformation should use?
Thanks
Assign Value To A Variable Inside Data Flow
Mar 14, 2008hi,
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.!
Variable Not Getting Updated And Passed Into Data Flow
Dec 12, 2006My package sets a variable in an ExecSQL task. This variable is then used as a parameter in a DataFlow task that follows. Normally everything works just fine. However, sometimes if the package fails inbetween the step that sets the variable and the DataFlow, the default value of the variable is stored in the checkpoint file. (It is not failing in the step that sets the variable) When the package is restarted I can see that the variable is not set to the data value in the database, but rather it has its default (design time) value.
Anyone else see this bug?
How To Assign Value To A Package Variable In A Data Flow Task ??
Mar 13, 2007Hi 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
Data Flow Source That Will Take A String Variable With Csv Structure?
Dec 21, 2006I am able to use a custom script task to receive a MSMQ package and save the package contents to a flat file.
I can also use the bulk load task to push the flat file contents into a SQL table.
However, I would like to save the package contents to a variable (done, it works), and then pass that string variable to a data flow task for SQL upload. In other words, I don't see any reason to persist the msmq package contents to disk.
My question is: Which data flow source can I use that will accept a string variable? The string variable will then need to be processed with bulk load or an execute sql task.
Btw, the content of the string variable is a csv style string:
"01001","11/21/2006",15
"01001","11/21/2006",1
"01001","11/21/2006",25
"01001","11/21/2006",3
Thanks,
Trey
Incrementing A User Variable In Data Flow Task
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.
How To Assign User Variable Value To The Derived Column, In Data Flow Task
Dec 19, 2006Hi:
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
SSIS Custom Data Flow Component - Variable Type Converter
Jun 27, 2007Hi all,
I am creating a customer data flow component for SSIS for use in a package. I've got some custom properties that I am exposing using the supplied advanced editor (no custom property editor here).
Some of my properties are enumerated types, and I have deciphered how to get those properties to show as dropdown lists of their respective enumerations. (For those of you who may be looking as hard as I did as to how to accomplish this, see the end of this post.)
I also have a few properties which request SSIS package variable names - such as an file name variable. However, I can't figure out how to tell the advanced editor that the property is looking for an SSIS variable, so that it can show a dropdown list of package variables, much like virtually any other Microsoft supplied Data Flow component can.
Is there a Type Converter I could specify for those custom properties? Is there another way to instruct SSIS that my custom property is expecting a variable? Or do I need to code a custom UI for editing my Data Flow Task?
To create a dropdown list of values for a custom property that represents an enum, do the following:
1. Create your enum definition, such as "public enum ThisIsMyEnum { one, two }"
2. Create a new class that inherits from TypeConverter, such as "public class MyEnumConverter : TypeConverter"
3. Override "CanConvertFrom", and return true if "sourceType == typeof(string)"
4. Override "CanConvertTo", and return true if "destinationType == typeof(string)"
5. Override "ConvertFrom", and return the enum value (such as "one" or "two" in my example) that corresponds to the string passed in the parameter "value"
6. Override "ConvertTo", and return a string that corresponds to the enum value passed in the parameter "value"
7. Override "GetStandardValuesSupported" and return true
8. Override "GetStandarValuesExclusive" and return true to indicate that ONLY the enum values should be accepted
9. Override "GetStandardValues", and return a new StandardValuesCollection constructed with Enum.GetValues() of your enum, such as "return new StandardValuesCollection(Enum.GetValues(typeof(ThisIsMyEnum)));"
10. Just above your "public enum" declaration, add a "TypeConverter" attribute to link your type converter to your enum, such as "[TypeConverter(typeof(MyEnumConverter))]"
11. In "ProvideComponentProperties", after you've created your custom property like this: "IDTSCustomProperty90 propEnum = ComponentMetaData.CustomPropertyCollection.New()", add another line to specify the TypeConverter property of the property to the full assembly name of your type converter, like so: "propEnum.TypeConverter = typeof(MyEnumConverter).AssemblyQualifiedName;"
Problem Assigning Value To Package Variable From Data Flow Script Component
Sep 28, 2005In my Script Component properties I have included "ClientReportGroupId" as a ReadWrite variable. This variable is declared as a Package Variable.
View 23 Replies View RelatedThe Return Of Problem Assigning Value To Package Variable From Data Flow Script Component
Jul 10, 2006I have a Data Flow Script Component(Destination Type) and in the properties I have a read/write variable called User::giRowCount
User::giRowCount is populated by a Row Count Component previously in the Data Flow.
After reading http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=97494&SiteID=1 it is very clear that you can actually only use variables in the PostExecute of a Data Flow Script Component or you will get an error
"Microsoft.SqlServer.Dts.Pipeline.ReadWriteVariablesNotAvailableException: The collection of variables locked for read and write access is not available outside of PostExecute."
What I need to do is actually create a file in the PreExecute and write the number of records = User::giRowCount as second line as part of the header, I also need to parse a read/write variable such as gsFilename to save me hardcoding the path
(Me.Variables.gsFilename.ToString),(Me.Variables.giRowCount.ToString)
-they must go in the PreExecute sub --workarounds please-here is the complete script component that creates a file with header, data and trailer --Is there any workaround
Thanks in advance Dave
Imports System
Imports System.Data
Imports System.Math
Imports System.IO
Imports System.Text
Imports System.Configuration
Imports Microsoft.SqlServer.Dts.Pipeline.Wrapper
Imports Microsoft.SqlServer.Dts.Runtime.Wrapper
Public Class ScriptMain
Inherits UserComponent
'Dim fs As FileStream
Dim fileName As String = "F:FilePickUpMyfilename.csv"
'Dim fileName = (Me.Variables.gsFilename.ToString)
Dim myFile As FileInfo = New FileInfo(fileName)
Dim sw As StreamWriter = myFile.CreateText
Dim sbRecord As StringBuilder = New StringBuilder
Public Overrides Sub PreExecute()
sbRecord.Append("RECORD_START").Append(vbNewLine)
End Sub
Public Overrides Sub ParsedInput_ProcessInputRow(ByVal Row As ParsedInputBuffer)
sbRecord.Append(Row.ProjectID.ToString)
sbRecord.Append(Row.TransactionRefNum.ToString)
sbRecord.Append(Row.BillToCustomerNum.ToString)
sbRecord.Append(Row.BillToAccountNum.ToString)
sbRecord.Append(Row.BillToLineNum.ToString)
sbRecord.Append(Row.BillToReassignmentNum.ToString)
sbRecord.Append(Row.ChargeCode.ToString)
sbRecord.Append(Row.NotificationMethod.ToString)
sbRecord.Append(Row.AdjustmentAmount.ToString)
sbRecord.Append(Row.AdjustmentDate.ToString)
sbRecord.Append(Row.ReparationGivenFlag)
sbRecord.Append(Row.BillingSystemProcessingErrorCode.ToString).Append(vbNewLine)
End Sub
Public Overrides Sub PostExecute()
sbRecord.Append("RECORD_COUNT").Append((vbTab))
sbRecord.Append(Me.Variables.giRowCount.ToString).Append(vbNewLine)
sbRecord.Append("RECORD_END").Append(vbNewLine)
'Now write to file before next record extract
sw.Write(sbRecord.ToString)
'Clear contents of String Builder
sbRecord.Remove(0, sbRecord.Length)
'Close file
sw.Close()
End Sub
End Class
Has anyone got a workaround
thanks in advance
Dave
Change Data Type Of Variable
Oct 3, 2007
Is there anyway to change the data type of a variable while in an expression?
My problem is I am trying to compare a variable w/ a string data type to a variable w/ an object data type. I would change the data type of the variable from object to string but if I do that my sql task fails when it tries to write a value to that variable. The variable w/ the object data type is the result of an openquery sql stmnt. So I guess there are two ways around my problem.
1. Change data type of variable while in an expression..ie flow constriant
or
2. Change data type of vraiable from object to string and still get the openquery result to work.
Any help???
Thanks !!
Reuse Existing Data Flow Components In A Custom Data Flow Component
Aug 29, 2007Hello,
Is it possible to use existing data flow components (Merge Join, aggregation,...) in a custom data flow component?
Thanks,
Yoann
SSIS Script Task Alters Package Variable, But Variable Does Not Change.
Oct 25, 2006I'm working on an SSIS package that uses a vb.net script to grab some XML from a webservice (I'd explain why I'm not using a web service task here, but I'd just get angry), and I wish to then assign the XML string to a package variable which then gets sent along to a DataFlow Task that contains an XML Source that points at said variable. when I copy the XML string into the variable value in the script, if do a quickwatch on the variable (as in Dts.Variable("MyXML").value) it looks as though the new value has been copied to the variable, but when I step out of that task and look at the package explorer the variable is its original value.
I think the problem is that the dataflow XML source has a lock on the variable and so the script task isn't affecting it. Does anyone have any experience with this kind of problem, or know a workaround?
How To Pass Parameter Froon Control Flow To Data Flow
Feb 14, 2006Hi, 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
HELP: How Do I Pass Variables From Control Flow To Data Flow
Mar 9, 2007I 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
Handle Tasks In Control Flow Tab From Data Flow Tab
Jan 17, 2008Dear 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
SSIS Variables Between Data Flow And Control Flow... How To????
May 17, 2007Hi 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,
Please Advise: Big Control Flow Or Big Data Flow
Jul 22, 2007Hi 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
Lookup Task Data Flow Transformation Causes Data Flow Task To Hang?
Dec 28, 2007Hi,
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.
How To Use Same Variable Between The Control Flow Tasks In SSIS 2005?
Apr 16, 2007I want to get the start time of data load and end time after data load and store it in a table which has mapping_id , mapping_name,start_time,end_time.
i use ActiveXScript task to get the start time before data load and store the mapping_id in a global variable,then data flow transformation occurs.
i want to use a global variable to store the mapping id ,so that i can update the end time after data load with that variable.how to do this?
is there any other way, i can get the start and end time of data load (other than the logging information)?
Sampling Data Set Via Integration Services Data Flow For Data Mining Models Without Saving Training And Test Data Set?
Nov 24, 2006Hi, all here,
Thank you very much for your kind attention.
I am wondering if it is possible to use SSIS to sample data set to training set and test set directly to my data mining models without saving them somewhere as occupying too much space? Really need guidance for that.
Thank you very much in advance for any help.
With best regards,
Yours sincerely,
Need To Save A Value From Data Flow A To Use In Data Flow B
Mar 20, 2007Good morning, all,
I am working on importing an Excel workbook, saved as multiple CSV flat files, that has both group level data and related detail row on the same sheet. I have been able to import the group data into a table. As part of the Data Flow task, I want to be able to save the key value for the group, which I will use when I insert the detail rows.
My Data Flow has the following components: The flat file with the data, which goes to a derived column transformation to strip out extraneous dashes, which leads to the OLEDB Destination component.
I want to save the value as a package level variable, so that I can reference it in another dataflow.
Is this possible, and if so, at what point do I save the value?
Thanks,
Kathryn
Change A Value Of A Variable
Apr 16, 2008
Hi,
I have a simple question: after an error I want to change the value of a variable.
Since there is NOT a clear way to do it I was using a workaround:
a Execute SQL Task with the following parameters:
Connection Type = OLE DB
Sql Source Type = Direct Input
Sql Statement = Select ? =1
And I was using the variable as Return Value parameter.
In this way it worked fine.
Now I want to use an ADO.NET connection.
I have tried in serveral way but I haven't been able to reach the goal.
Does a way exist?
Thank you
Antonio
Change Local Variable Inside Query
Jul 20, 2005/*Given*/CREATE TABLE [_T1sub] ([PK] [int] IDENTITY (1, 1) NOT NULL ,[FK] [int] NULL ,[St] [char] (2) NULL ,[Wt] [int] NULL ,CONSTRAINT [PK__T1sub] PRIMARY KEY CLUSTERED([PK]) ON [PRIMARY]) ON [PRIMARY]GOINSERT INTO _T1sub (FK,St,Wt) VALUES (1,'id',10)INSERT INTO _T1sub (FK,St,Wt) VALUES (2,'nv',20)INSERT INTO _T1sub (FK,St,Wt) VALUES (3,'wa',30)/*Is something like the following possible.The point is to change the value of the variableinside the query and use it in the calculated field.This doesn't compile of course, but is therea way to accomplish the same thing?*/DECLARE @ndx intSET @ndx = 1SELECT(a.FK+ (CASE WHEN @ndx > 0THEN (SELECT @ndx = b.WtFROM _T1sub bWHERE b.Wt = a.Wt)ELSE 0 END)) as FKplusWTFROM _T1sub a/*Output would look like this:*/FKplusWT-----------112233/*I know, I can get this output just by addingFK+WT. This is not about that.This is about setting vars inside a query*/thanks, Otto Porter
View 1 Replies View RelatedIntegration Services :: Change Datetime Format Of Variable
Jun 12, 2015I am using Execute sql task in my SSIS package, and I am trying to make the following query:
<o:p></o:p>
Select max(sqlid) from archive.dbo.Archivebbxfbhdr
where timein <= ?<o:p></o:p>
Where ? is my input parameter variable migration_start which is a datetime.<o:p></o:p>
My issue is that variable name migration_start which give me default format of 6/11/2015 1:26 AM
But I expecting to get in 2015-06-11 01:26:22.813 format.<o:p></o:p>
How I can I change the datetime format of my variable to be (yyyy/mm/dd)hh:mm:ss)?<o:p></o:p>
Integration Services :: How To Change Variable Name In Production Database Level
Jul 23, 2015I have package there i have multiple tasks,I have used one User definied varible into my package level,So here my condition is i want to change my variable name from the package level,Here that variable used in different places in my package level,it has used in some places as well in my package level.
I need to change my Variable name after development of my package so how it will changed.
Extract Outlook Contacts Data(on Public Directory) Directly In Data Flow
Jun 13, 2006Hi everyone,
I have to extract, dayly a list of contacts on a exchange server in a table on our EDW on sql server 2005. Is it possible to get the information directly from a dataflow or i will have to developpe a script task ?
Need help desperatly !!!
Data Flow Stuck In Phase The Final Commit Data Insertion Has Started
Jun 19, 2007Hello,
I have noticed that for one of my data-flows, the process is really long during the phase "the final commit data insertion has started".
To be accurate, the process is fast until it reaches this phase. It happens often when I load millions of lines.
The extraction is done from a database SQL Server 2005 to a database SQL Server 2005, on the same server (with the SQL Server native provider).
I used a SQL Server destination but I have tried with an OLE DB destination and it is the same situation.
Why the process could be so long during this phase?
There is a way to optimised my package to avoid that?
Any idea is welcome.
Thanks.
Guillaume