Truncation Warning, How To Reset Data Flow Columns
Jul 10, 2006
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.
In my case, I have a column in a pipeline that is DT_STR with a length of 20. I'm trying to insert data from the data flow into a table (via an OLEDB destination) in which the destination column is varchar(50). When I review the metadata throughout the data flow, everything looks correct. However, I get a truncation warning stating that data loss might occur when inserting data into the string column of length 20 from a source column of length 50. Thus, it looks like the data flow is swapping the metadata for the source and destination columns when validating the data flow (and thus, producting the warning).
This is a pretty complex data flow, so I'd rather not have to rebuild it. And changing the metadata of the source column to be DT_STR with a length of 50 is going to wreak minor havoc in the data flow (as lots of things use that column).
Has anyone seen anything similar to this? The post referenced above deals with a package that is constructed programmatically, but the package I'm working with was created the old fashioned way...
I'm having a problem with one of my packages due to a truncation warning that I can't get rid of. It's not the end of the world, because the package still works. It's just extremely frustrating.
The problem arises in a derived column item in a data flow task. There is a postcode field in the data flow which has space for 20 characters. I create a derived column from this which simply removes any spaces:
Derived Column Name: Postcode
Derived Column: Replace 'Postcode'
Expression: REPLACE(" ",Postcode,"")
Data Type: string [DT_STR]
Length: 20
Code Page: 1252 (ANSI - Latin I)
However when I use this expression, or anything else which uses the replace function, I end up with the warning message:
Warning 1 Validation warning. Create Staging Tables: Derived Column [20555]: The result string for expression "REPLACE(" ",Postcode,"")" may be truncated if it exceeds the maximum length of 4000 characters. The expression could have a result value that exceeds the maximum size of a DT_WSTR.
I have tried everything I can think of to get rid of the warning. Is there some way I can use the replace function, but not have the system convinced that I'm about to go over the maximum size limit?
I have a data file that has numeric data that looks like:
1.123456
And this column is defined as a DT_NUMERIC(18.6) in the flat file conn mgr.
As an experiment, I changed the destination column to a NUMERIC(18,0) - hoping that this would throw a truncation error at the flat file task level (where I have Truncation on all columns set to "fail component").
Not a peep. It loaded the data into the table, chopping off the 6 digits after the decimal point.
You would THINK that this would cause an error, but no. Why is this? The flat file task complains about all kinds of things, but this is such a gross error, you would think it would catch it!
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.
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.
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 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
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 ]
Can Ne1 tell me how to reset the auto increment colum of a table in the Microsoft Data Engine??, Does ne1 know where to find a free MSDE administration utility.
I have a demo database in SqlCE that I am getting ready to deploy. I deleted a bunch of test records and now want to reset the identity columns. The compact method runs fine, but the identity columns are not being reset? So when I add a new record, the returned identity value is over 1,000 even though the highest value is only 50.
OS- Windows server 2012Â SQL - Windows SQL 2012 R2 Sharepoint 2010 SP2 Â Â
SQL has DB restored from earlier server. DB is quiet large in size because used with sharepoint.
Following steps have been followed on this restored DB -Â
Maintenance Plan Rebuild-Reorganize the indexes Update Statistics
After above steps, query on Sharepoint table found performant. But after some delay/idol time(overnight) on server. Query takes much more(20X) time to execute. On running execution plans observed that some warnings are seen on columns which are primary keys.Â
Columns with no statistics 'AllDocs.tp_DocID'
When Update statistics is executed again in SQL management studio above issue is again seen resolved, but came again after some delay.
Is there any SQL logs where can I find activities performed during overnight with SQL which make this issue to happen? This issue was not there on Win2k8 environment.
Hi all! I have been doing some testing with transactional replication. I have a table (TEST) with the following columns:
[id] [int] IDENTITY(1,1) NOT FOR REPLICATION NOT NULL, [name] [varchar](50) COLLATE SQL_Latin1_General_CP850_CI_AS NULL, [stock] [int] NOT NULL CONSTRAINT [DF_Prueba1_stock] DEFAULT ((0)),
I want the table rows to have an independent stock value for each database. So, I made a transactional publication with updatable subscriptions, to replicate all the table columns, except the stock column.
The problem is when I reset subscriptions: the table is deleted an created again on the subscriber, so all the data stored at the stock column is lost. I tried to solve this changing the "Action if name is in use" option at the publication. I choose to keep the current object without changes, but I began having problems with the generation of the identity values at the subscriber.
I have a flat file data source and SQL Server destination data flow. Only a subset of columns from the source are mapped to the destination. During execution SSIS returns DTS pipline warnings for every unmapped source column. Is some kind of transformation the only way to get rid of these warnings?
Also this data flow subsequently returns an error: [SQL Server Destination [1293]] Error: An OLE DB error has occurred. Error code: 0x80040E14. An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80040E14 Description: "Could not bulk load because SSIS file mapping object 'GlobalDTSQLIMPORT ' could not be opened. Operating system error code 2(The system cannot find the file specified.). Make sure you are accessing a local server via Windows security."
I'm researching this error, but if anyone is familiar with it your advice would be appreciated. Thanks.
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.
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.
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
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
A data reader is using a connection manager to connect to an ODBC System DSN . A query in the SqlCommand property is provided. Data is being truncated in the only string column . The data type in data reader output-->external columns shows as Unicode string [DT_WSTR] Length 7.
The truncated output in a text file is the first 3 characters from left to right . Changing the column order has no effect.
A linked server was created in SQL Server Management Studio to test the ODBC System DSN using the following:
Data returned using "OPENQUERY" does not truncate the string column indicating that the ODBC Driver returns data as expected with sql 2005, but not with the Data Reader.
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)
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.
Warning 1 Validation warning. Data Flow Task: Destination - TransItem [25]: Truncation may occur due to inserting data from data flow column "Info" with a length of 128 to database column "Column 4" with a length of 50. Package3.dtsx 0 0
Hello, I am trying to store pictures in an Image data type column of my MsSQL table from PHP, or even SQL Query Analyzer for that matter. In PHP I use the bin2hex() function to get the HEX equivilent of the picture, I'm sure everyone knows that when you convert a Binary file to HEX, the file size is doubled. When I try to insert the HEX file into my table with a query like: INSERT INTO PicTable (fileType, fileData) VALUES ('jpg', 0x47494638396164014100f70000000000ffffff2f2f2fe800020c0c0ce....)
MsSQL will store EXACTLY HALF of the file. The byte count of the stored HEX data and original Binary data is exactly the same, so when I try to extract the file and display it, in a browser window for instance, I can see exactly half of the image. I have tried everything I can think of to fix this, but I am at a loss. Does anyone know of anything that would cause this strange behavior. I have no problems at all doing this with MySQL's BLOB data type. Thanks in advance for any help.
The length of the longest polygon coordinates record is about 115,000 characters. I believe the varbinary(MAX) type should hold that data, but SQL throws a truncation error every time I try to import the data.
I'm reading data from a flat file source. If some data gets truncated, i have the option of 'ignoring', 'redirecting' or 'fail component'.
What i'd like to do is, to allow the data to be truncated, but i'd also like to write a log entry so that i can know that a particular rows data has been truncated.
I've tried 'redirecting' the row to a script component (as transformation), but i don't know how to determine if the error is truncation or not, not only that, i can't redirect the row back to the 'original' flow, which is a derived field column.
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.
"Bulk insert data conversion error (truncation) for row 1, column 1 (id)."
when you get the error above or similar in sql server 2000 does it continue inserting the data by truncating it or does it stop beacause looking at the data that i have got it seems to continue inserting the data but just truncates the colunm. i have tried it several time its seeems to be consistent.
I have data that has white spaces after the actual data e.g. '00093 ' hence i am happy aslong as i can be sure that it does always continue as i will be loading alot of data using a similar process.
hence my question is that will it load all the data all the time and just truncate it to fit the column size?
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?
