Seems obvious but I can't see how. How would I remove columns from a data flow so that columns which have been used earlier but are not needed for insert/update are taken out of the flow.
I'm asking because the data ends up in a update statement and the flow has got so big it is unreadable.
Cheers, Al
Hi,
I'm just wondering what's the best approach in Data Flow to convert the following input file format:
Date, Code1, Value1, Code2, Value2
1-Jan-2006, abc1, 20.00, xyz3, 35.00
2-Jan-2006, abc1, 30.00, xyz5, 6.30
into the following output format (to be loaded into a SQL DB):
Date, Code, Value
1-Jan-2006, abc1, 20.00
1-Jan-2006, xyz3, 35.00
2-Jan-2006, abc1, 30.00
2-Jan-2006, xyz5, 6.30
I'm quite new to SSIS, so, I would appreciate detailed steps if possible. Thanks.
Hello,
I am new to SSIS.
I am trying to write a simple package to export data from some SQL 2005 tables and into a flat file.
In my data flow, I am using the OLE-DB data source and then the flat file destination.
This all works fine except that I cant get the package to write the columns out in the order I want. Even when I drive the OLE-DB source by a query, they columns are getting written to the flat file in a different order than I want.
How is SSIS determining what order to write the columns in and, more importantly, how can I change it to do it in the order I want?
Please help if you can. As mentioned I am new to SSIS so please give clear+simple answers.
Thanks
Mgale1
I am populating a table using a SQL command. very simple.
SELECT RISKID
,RISKIDREN
,RISKIDEND
,PREMIUMSUBTOTAL
,PREMIUMTOTAL
,SURCHARGE1
,SURCHARGE2
,SURCHARGE3
,SURCHARGE4
,SURCHARGE5
,COMMPREMIUM1
FROM PREMIUM
However, the first three columns are not being populated in the destination table. The other columns come over fine.
The SQL stmt. returns data as expected when run against the source database.
I deleted the source and destination and recreated the flow to prevent metadata mapping issues. In the source editor preview I see all of the columns and data. In the destination editor preview, the first three columns of data are null ???.
It appears that the columns are not mapping properly even though they are in the source and destination of the mapping editor.
I have made sure that the destination mapping contains all the columns in the UI.
The source and destination have the columns represented in the advanced editor metedata. I also checked the XML to verify that the columns are in the destination.
There is a row count between the source and destination. which should have no effect.
This is a part of a larger DW load where I have 10 other tables populated within the dataflow. I also do not get any validation, or error messages. So, I have eliminated truncation errors or the like.
I am really puzzled. Has anyone run accross anything like this?
I keep getting a waring:
[Production IDW [1]] Warning: Truncation may occur due to retrieving data from database column "Industry" with a length of 16 to data flow column "Industry" with a length of 8.
When I look at the industry lookup table the column size is 50. But the data flow metatdata is saying the oclumn is 8. How can I change the data flow column? When I try to edit it and click on metadata it is uneditable. The field it is matching to is 50 and the field it is coming from is 16.
Hi:
I have a data flow task in which there is a OLEDB source, derived column item, and a oledb destination. My source is a SQL command, that returns some values. I have some values, that I define in the derived columns, and set default values under the expression column. My question is, I also have some destination columns which in my OLEDB destination need another SQL command. How would I do that? Can I attach two or more OLEDB sources to one destination? How would I accomplish that? Thanks
MA2005
I need to loop the recordset returned from a ExecuteSQL task and transform each row using a Data Conversion task (or a Script Task).
I know how to loop the recordset returned by an ExecuteSQL task:
http://www.sqlis.com/59.aspx
I loop the returned recordset (which is mapped to a User variable of type System.Object) and assign the Variable Mappings in the ForEach Loop to different user variables which map to the Exec proc resultset (with names and data types).
I assume to now use these as the Available Input columns for the Data Conversion task, I drag a Data Flow task inside the For Each Loop container and double-click it, then add a Data Conversion task.
But the Input columns (which I entered in the Variable Mappings in the ForEach Loop containers) dont show up in the Available Input columns of the Data Conversion task.
How do I link the Variable Mappings in the ForEach Loop containers from the recordset returned by the Execute SQL Task to the Available Input columns of the Data Conversion task?
.......................
If this is not possible, and the advice is to use the OLEDB data flow as the input for the Data Conversion task (which is something I tried too), then the results from an OLEDB Command (using EXEC sp_myproc) are not mapped to the Available Input columns of the Data Conversion task either (as its not an explicit SQL Statement and the runtime results from a stored proc exection)
I would like to use the ExecuteSQL task to do this as the Package is clean and comprehensible. Which is the easiest best way to map the returned results from a Stored proc execution to the Available Input columns of any Data Flow transformation task for the transform operations I need to execute on each row of data?
[ Could not find any useful advice on this anywhere ]
thanks in advance!
Hello,
Is it possible to use existing data flow components (Merge Join, aggregation,...) in a custom data flow component?
Thanks,
Yoann
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
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
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
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,
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.
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
Hi,
Could you please tell me removing table columns with null value will reduce the datafile size.
Data file size needs to be reduced to make free space on the disk, Could please suggest what data type can be choosen to be removed from the existing table so that more space can be made(Char,varhchar,int,date etc )
Thanks
John Jayaseelan
I have a query that I'm filtering using Customer ID, CustomerID = '12345', even though I need the query to filter that data, I don't need to see that column in my results. I tried removing it from my Select Distinct group but I'm guessing it needs to be there or the filter won't work(like I said, very green). Is there something that I can add to hide this column?
SELECT DISTINCT
RG.ResNumber,
ResWithSupp.SupplierID,
ResWithSupp.ServiceType,
RG.CustomerID,
[code]......
I have a Report I need to hide subtotals and total and include detail only when I am exporting to excel. So, is there a way to capture that it is exporting to Excel? Possibly a way to capture the rs:Format=Excel?
View 5 Replies View RelatedI apologise if this question has been asked before but I have spent ages searching these forums and the internet for an answer and I am yet to find one.
My problem is that I have a package which imports a column, lets call it 'Column A'. Column A is used to create other columns, lets say Columns B, C & D. This is done in a script using asychronous input and once completed column A is no longer used. Other tranformations occur to B, C & D including a split and then finally a merge together again, but all the time A seems to remain a valid input on all processes yet I never choose to use or output it. When I come to the merge process I am required to merge columns B, C & D but also A, surely this is inefficient. Furthermore when the package has run I get a warning telling me that Column A is not required and should be removed, but I can not seem to find anywhere to remove it from the pipe.
I am hoping that I am just missing something obvious here but I have been tearing my hair out so any help would be much appreciated!
Graham.
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.
Hi, 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,
Good 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
I have a table that I need to delete some data from and put the deleteddata into a different table.How do I script the following.If Field1 in Table1 is null, remove that row from Table1 and put it ina new table called Table2Regards,Ciarán
View 5 Replies View RelatedHi 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 !!!
Hello,
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
Hi All,
I want to export data from SQL Server2005 to an Excel spreadsheet thru "Data Flow Task". I am using OLE DB for SQL Server for the source connection and a Connection To Excel as my destination source. The Excel spreadsheet (2003) exists and has the first row with column names. I don't have any warnings before trying to execute.
The SQL datable fileds are
i) ID - Int
ii) RefID
iii) txtRemarks - nvarchar(MAX)
iv) ddlWaterLevel - nvarchar(50)
While executing the tasks, I got the error
Error: 0xC0202025 at Data Flow Task, Excel Destination [427]: Cannot create an OLE DB accessor. Verify that the column metadata is valid.
Error: 0xC004701A at Data Flow Task, DTS.Pipeline: component "Excel Destination" (427) failed the pre-execute phase and returned error code 0xC0202025.
After analysing I found in the DataFlow --> Excel destination --> Advanced Editor for Excel Destination, the default data type for txtRemarks shows as "Unicode string [DT_WSTR]". But this is supposed to be "Unicode text stream [DT_NTEXT]". Even if I change the data type in the design time, It doesn't accept.
Please do help me out.
thanks
Sanra
I need to see inside a SSIS 2012 project a new SSIS installed component, but in the SSDT 2010 I cannot see the SSIS Data Flow Items tab for adding data source/data destination respect to the choose toolbox items pane.
View 4 Replies View RelatedHi, all experts here,
Do we always have to use SCD component for the loading of data into data warehouse to handle changes of rows?
I am looking forward to hearing from you and thank you very much in advance for your help.
With best regards,
I need to call a stored procedure to insert data into a table in SQL Server from SSIS data flow task.
I am currently trying to use OLe Db Destination, but I am not sure how to map inputs to OLE DB Destination to my stored procedure insert.
Thanks
I am getting the following error running a data flow that splits the input data into multiple streams and writes the results of each stream to the same destination table:
"This operation conflicts with another pending operation on this transaction. The operation failed."
The flow starts with a single source table with one row per student and multiple scores for that student. It does a few lookups and then splits the stream (using Multicast) in several layers, ultimately generating 25 destinations (one for each score to be recorded), all going to the same table (like a fact table). This all is running under a transaction at the package level, which is distributed to a separate machine.
Apparently, I cannot have all of these streams inserting data into the same table at one time. I don't understand why not. In an OLTP system, many transactions are inserting records into the same table at once. Why can't I do that within the same transaction?
I suppose I can use a UnionAll to join them back together before writing to a single destination, but that seems like an unnecessary waste and clutters the flow. Can anyone offer a different solution or a reason why this fails in the first place?
Thanks in advance.
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.
I have a comma delimited data file TestData.txt of the form:
123,asss,aweqrrr ,ssdsff , ,2wwwrwrr
434,sff,dgfdgd ,sffsfsfete ,sd ,dff
I want to load this data into SQL Server tables so that the data will be imported without the trailing spaces(blanks) after each data element .
Thus I will like to trim the data of the extra spaces (blanks) before import.
Desired data to be loaded :
123,asss,aweqrrr,ssdsff,,2wwwrwrr
434,sff,dgfdgd,sffsfsfete,sd,dff
Any help will be most welcomed
I am running a query on multiple tables and the data I get back consists of several repeated rows but with one column different. I want to take out those repeated rows and for the column that is different join that data and separate it by a comma. Can this be done?
Ex.
Cindy Lair 111 Drury Circle Harrisburg Pennsylvania 717
Cindy Lair 111 Drury Circle Harrisburg Pennsylvania 610
Cindy Lair 111 Drury Circle Harrisburg Pennsylvania 310
So i would like this data to come up as:
Cindy Lair 111 Drury Circle Harrisburg Pennsylvania 717,610,310
I would like to remove data from a sqlserver database but keep the structure the the db. How would I do this?
View 9 Replies View Related