Integration Services :: Check Table For Existing Record Before Data Flow Task
Jun 1, 2015
Using SSIS 2012 (within Visual Studio) on Windows 7.
Before allowing my Data Flow task to fire, I'd like to check the target table (OLE DB Destination) for a specific date value in a specific field. I've seen how the Lookup Task is commonly used to check for dupes before inserting, but I'm not able to use that method because the data value I want to search the table for is contained in a Global Variable (let's say "MyVariableDate").
Is there any way to check for any records in a target table where Date1 = MyVariableDate (i.e. scanning the entire table for any occurrence of MyVariableDate in the Date1 field)?
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Jun 4, 2015
I have huge data and i am loading data from EXCEL to database table, after loading 80 percent data i am getting some error. My package got failed and it has lots of transformation and took around 6 hours to process completely because of that i don't want it to reload from start. if i run it again it should start from next record from where i got the error.
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May 9, 2012
I'm a beginner in ssis. Use of Pointer in Data Flow task (Transformations)Royal PS
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Dec 7, 2007
We are using an OLE DB Source for the Data Flow Source and OLE DB Destination for the Data Flow Destination. The amount of data being moved is about 30 million rows, and it is gather using a sql command. There is not other transformations in between straight from one to another. The flow starts amazingly fast but after 5 million rows it slows considerably. Wondered if anyone has experienced anything similar with large loads.
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Jul 2, 2010
In my SSIS Data Flow Task, I have a query that retrieves data based on a couple of date parameters. Is there a way we can pass/use the Variables defined in the SSIS package in the query ?
(I am assigning values to those variables from C# code)
The query should look like this:
select ordernumber, customerid from salesorder
where statecode=3 and datefulfilled between @variable1 and @variable2
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Apr 29, 2015
I have a Data Flow Task within a ForEach loop container. The source of the flow is ADO.NET connection and the destination is a Flat File Connection. I loop through a collection of strings in the ForEach loop. Based on the string content, I write some data to the same destination file in each iteration overwriting the previous version. I am running into following Errors:
[Flat File Destination [38]] Warning: The process cannot access the file because it is being used by another process.
[Flat File Destination [38]] Error: Cannot open the datafile "Example.csv".
[SSIS.Pipeline] Error: Flat File Destination failed the pre-execute phase and returned error code 0xC020200E.
I know what's happening but I don't know how to fix it. The first time through the ForEach loop, the destination file is updated. The second time is when this error pops up. I think it's because the first iteration is not closing the destination file. How do I force a close of the file within Data Flow task or through a subsequent Script Task.This works within a SQL 2008 package on one server but not within SQL 2012 package on a different server.
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Oct 18, 2015
We have a single generic SSIS package that is used to import several hundred iSeries tables into SQL. I am not looking to rewrite the process. But I am looking for ways to improve performance.
I have tried retain same connection, maximum insert commit size, lock table (tablock), removed some large columns, played with the log file location and size, and now I am working to tweak the defaultbuffermaxrows.
To describe the data flow task - there are six data flows tasks (dft) working at the same time. Each dtf has their own list of iSeries tables and columns and the corresponding generic SQL table names. Each dtf determines their list of tables based on the number of columns to import. So there is dft30 (iSeries table has 1-30 columns to import), dtf60 (iSeries table has 31-60 columns to import), etc. The destination SQL tables are generically called Staging30, Staging60, etc. Each column in the generic Staging tables are varchar(100). The dtfs are comprised of an OLE DB Source and an OLE DB Destination.
The OLE DB Source uses a SQL Command from Variable to build a SELECT statement. The OLE DB Source uses a connection manager that uses an IBM iAccess IBMDA400 provider. The SQL Command ends up looking like this for the dtf30. This specific example is importing from the iSeries table TDACLR and it only has two columns so it will be copied to the Staging30 table.
select TCREAS AS C1,TCDESC AS C2,0 AS C3,0 AS C4,0 AS C5,0 AS C6,0 AS C7,0 AS C8,0 AS C9,0 AS C10,0 AS C11,0 AS C12,0 AS C13,0 AS C14,0 AS C15,0 AS C16,0 AS C17,0 AS C18,0 AS C19,0 AS C20,0 AS C21,0 AS C22,0 AS C23,0 AS C24,0 AS C25,0 AS C26,0 AS C27,0 AS
C28,0 AS C29,0 AS C30,''TDACLR'' AS T0 from Store01.TDACLR
The OLD DB Source variable value looks like the following, but I am not showing the full 30 columns
select cast(0 AS varchar(100)) AS C1,cast(0 AS varchar(100)) AS C2,cast(0 AS varchar(100)) AS C3,cast(0 AS varchar(100)) AS C4,cast(0 AS varchar(100)) AS C5, ... cast(0 AS varchar(100)) AS C30.
The OLE DB Destination uses OpenRowSet Using FastLoad From Variable. The insert into Staging30 ends up looking like this.
insert bulk STAGE30([C1] varchar(100) ,[C2] varchar(100) ,[C3] varchar(100) ,[C4] varchar(100) ,[C5] varchar(100) , ... ,[C30] varchar(100) ,[T0] varchar(20)
Of course we then copy and transform the Staging30 data to the SQL table that equals T0.
But back to defaultbuffermaxrows. Previously the dtfs had default values of 10000 for DefaultBufferMaxRows and 10485760 for DefaultBufferSize. I added a SQL task to SUM the iSeries column sizes, TCREAS and TCDESC in this example, and set the DefaultBufferMaxRows by dividing the SUM of the columns max_length into 10485760. But I did not see a performance improvement. Do you think that redefining the columns as varchar(100) for the insert is significant? Should I possibly SUM the actual number of columns (2) as 2x100 or SUM the 30x100?
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Jun 20, 2015
Have an SSIS package running great in 2008R2. It generates several flat files based on inline database queries. The first step of the package inserts a record into a log stats table and the last step of the package updates this record with the package name, run time and execution status. Now I need to add the records counts for each flat file to the log table.
Is there a way I can update one field for run counts with each of the counts for each file. So the [run counts] table column would look something like:
file1: 43522
file2: 645367
file3: 7883
Is it possible to store the record counts and flat file names in variables then concat them at the end when updating this record?
Or, is a better way to just insert/update a new record for each flat file step and log the counts for that file for its own record?
In either case, how I can capture the file count and pass that to the update statement.
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Aug 20, 2015
I have an SSIS package in VS 2010 that uses flat files to load database tables. I would like to check for the flat files existing before continuing to run the package. The flat files each have their own connection manager. I was wondering if I could use the connection managers to determine the file names instead of creating a Script Task and hard-coding each of the file names to check.
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Oct 13, 2015
I am facing an issue that Data flow task failing after loading 29000 rows out of 2lakhs rows.
I am loading data from .csv file to OLE DB Destination.
This data flow task is placed inside For each loop container.
is this issue because of any performance issue in SSIS packages such as buffer size.
find the error below:
DFT Load Data from FlatFile:Error: The conditional operation failed.
DFT Load Data from FlatFile:Error: SSIS Error Code DTS_E_INDUCEDTRANSFORMFAILUREONERROR.
The "DER Add Calc Columns" failed because error code 0xC0049063 occurred, and the error row disposition on "DER Add Calc Columns.Outputs[Derived Column Output].Columns[M_VALUE_NUM]" specifies failure on error. An error occurred on the specified object of the specified component. There may be error messages posted before this with more information about the failure.
DFT Load Data from FlatFile:Error: SSIS Error Code DTS_E_PROCESSINPUTFAILED. The ProcessInput method on component "DER Add Calc Columns" (48) failed with error code 0xC0209029 while processing input "Derived Column Input" (49). 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. There may be error messages posted before this with more information about the failure.
[code]....
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Jun 16, 2015
We have created SSIS package to load a text file into a table. Source system shares 10 text files and recently they stopped generating data for one of the text file (comping empty), after few months they will start generating the data for the empty file batch processing.
The Issue here is Data Flow task is getting failed while loading empty text file into table. How to handle this empty file load issue in SSIS package.
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Dec 5, 2006
On my office PC I have a strange problem with Data Flow Tasks. When I check-in a package into Source Control (Team Foundation) I usually have some empty Data Flow Tasks in the packages...even if I haven't changed that Flow Task.
This is really frustrating cause when running the package all goes well, but after a whil you notice that some tables are empty.
Does anyone know what the problem is?
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Aug 7, 2015
In my SSIS Package I am using Script task to check whether file exists or not.
I am having 3 variable as below
User::V_Filepath >File path
User::V_GeographyLevelFileName >Filename
User::V_FileExistsFlg >Flag
Below is the code I am using for same
String filepath = Dts.Variables["User:V_Filepath"].Value.ToString() + Dts.Variables["User::V_GeographyLevelFileName"].Value.ToString();
if (
File.Exists(filepath)
)
{
Dts.Variables["User::V_FileExistsFlg"].Value = 1;
}
MessageBox.Show(filepath);
MessageBox.Show(Dts.Variables["User::V_FileExistsFlg"].Value.ToString());
Dts.TaskResult = (int)ScriptResults.Success;
But I am getting exception error.
Find the attached screenshot of error ....
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Apr 29, 2015
I've a dataflow task on For Each Loop container at control flow of SSIS package. This For Each Loop container reads the CSV files from the specified location one by one, and populates a variable with current file name. Note, the tables where I would like to push the data from each CSV file are also having the same names as CSV file names.On the dataflow task, I've Flat File component as a source, this component uses the above variable to read the data of a particular file.
Now, here my question comes, how can I move the data to destination, SQL table, using the same variable name?I've tried to setup the OLE DB destination component dynamically but it executes well only for first time. It does not change the mappings as per the columns of the second CSV file. There're around 50 CSV files, each has different set off columns in it. These files needs to be migrated to SQL tables using the optimum way.
Which is the best way to setup the Dataflow task for this requirement?Also, I cannot use Bulk insert task here as we would like to keep a log of corrupted rows.
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Nov 13, 2015
Now I'm trying to implement logic to check if excel file is opened or not if open send out email in Script task. Using c#
I'm using this one but it's not working fine. always give me file is opened
public void Main()
{
Boolean FileLocked = true;
// Check if the file isn't locked by an other process
try
[Code] ....
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Jul 2, 2015
I know a WMI event watcher can be used to watch for a new file being added to a folder. However, I need to check for new folders being added to an existing folder. I haven't been able to find a post on doing this. Is there a way in WQL to check for a new folder being added instead of a new file? I've used SQL for years, but am new to SSIS.
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Nov 24, 2006
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,
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Dec 4, 2007
Hi,
I could use some help on how to save the result of my data-flow in an existing table.
I have created a data flow. I have no trouble storing the result of the flow in a new table. But I'm trying to store the result of my data flow in an existing table. (The flow involves fuzzy grouping, and i would like to store the result in the original table on which the fuzzy grouping was performed). But I cannot get it to work.
I can select the existing table as OLE DB destination. I can write an SQL to manipulate this table, but how do i address the result of the flow in the SQL?
Help is welcome here!
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Apr 25, 2006
when executing my data flow package that contains only one source and one destination
OLE db source -> SQL server destination
the following errors occurs in my output
Error: 0xC0202009 at Data Flow Task(infraction action), SQL Server Destination [3600]: An OLE DB error has occurred. Error code: 0x80040E14.
Error: 0xC0202071 at Data Flow Task(infraction action), SQL Server Destination [3600]: Unable to prepare the SSIS bulk insert for data insertion.
Error: 0xC004701A at Data Flow Task(infraction action), DTS.Pipeline: component "SQL Server Destination" (3600) failed the pre-execute phase and returned error code 0xC0202071.
i've checked the structure of my source and destination table but nothing seems to be wrong
if someone have ever faced these errors help me :D
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Aug 29, 2007
Hello,
Is it possible to use existing data flow components (Merge Join, aggregation,...) in a custom data flow component?
Thanks,
Yoann
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May 11, 2015
Data flow A take data from the Excel File A, Data B from Excel File B, Data C from Excel File C. What I'd like to do is that if something goes wrong on Data Flow A I would be alerted but the package should continue to running. The same for the DataFlow B, if A it's ok go on, if B fail send me the mail but continue until the end (so running the Data Flow C).
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Jun 12, 2008
Can anyone help me, please.
I want my users to submit there email address and username to my Sql Database, but i want to prevent them from adding already existed usernames to my table.
I have a usernametextbox and emailtextbox and a Submit button.
How do i check in my table before Submiting?
Thanks!
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Feb 11, 2014
I have a requirement to read an encrypted file as a data source. I am not allowed to save an unencrypted text file version on disc at any time for any length of time, therefore I created a custom source component that reads an encrypted csv file, decrypts it, and then passes each row of data to the pipeline and ultimately to an ole data destination. Basically it is just a text file reader with an added class that adds functionality that decrypts the file before the component sets columns or reads rows.
The custom component, “Encrypted File Source”, has a custom property “encryptionkey” with the encryption required flag set to true (code below) and is declared as eligible to be set in the expressions.
IDTSCustomProperty100 EncryptionKey = ComponentMetaData.CustomPropertyCollection.New();
EncryptionKey.Name =
"EncryptionKey";
EncryptionKey.Description =
"Secure String key value to decrypt the file";
EncryptionKey.Value =
string.Empty;
EncryptionKey.ExpressionType =
DTSCustomPropertyExpressionType.CPET_NOTIFY;
EncryptionKey.EncryptionRequired =
true;
I want to be able to set the password for the encrypted file in the SQL Agent job that executes the SSIS project. This means I have an environment with a variable, “DataPassword”, that is set to sensitive. It maps to a Project parameter in the SQL Agent job that is also set to sensitive. And I now I want to access that sensitive Project Password inside my data flow, specifically in the Encrypted File source task that I created and set my EncryptionKey to that Project Parameter.
The problem is that SSIS says.
"expression cannot be evaluated. ... The Expression will not be evaluated because it contains sensitive parameter value "$Project::DataFilePassord" . Verify that the expression is used properly and that it portects sensitive information"
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path="m@4@5l@4@11@9@11@9@5xe" stroked="f">
[Code] ....
I am using SQL Server 2012, on a windows 7 box with VS2010 premium.
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Sep 8, 2015
The only way to add a new column to an existing mapping that I know is to go to advanced editor and refresh. This however keeps only the default mapping (where the field names match), the rest is wiped out, so need to restore the mapping manually after that. Risky and annoying at the same time. Is there any alternative?
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Oct 19, 2015
I am using the SharePoint adapters from Codeplex that allow me to use SharePoint source and destination tasks in SSIS for SQL Server 2008 and SharePoint 2010. I am able to pull the data from the SQL Server and insert it into the SharePoint List.
However, I prefer to just have fresh data every time, so I'd like to add a step to delete all the items in the list before inserting the new ones. Is there a way I can configure the SharePoint SSIS destination task to clear all the items before I insert new ones?
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Nov 3, 2015
Suppose if I have a “Foreach Loop Container” that iterates over a list. Is it possible to execute different data flow tasks based on the input?
Example : List contains elements L1, L2 & L3.
ForEach Loop Container checks the input. If its L1 then it should execute DF Task1, If L2 then execute
DF Task2 and similarly for L3.
Is it possible to achieve this?
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Sep 25, 2015
I have created an event that contains a Data flow tasks with OLE DB source & Excel Destination.
This event is executed/triggered based on an execute SQL task failure in the control flow Sequence container.
However, when I execute the Data Flow task of the Event Handler, it runs successfully but fails when I execute the whole package.
I get the below error message:
[OLE DB Source [21]] Error: SSIS Error Code DTS_E_CANNOTACQUIRECONNECTIONFROMCONNECTIONMANAGER. The AcquireConnection method call to the connection manager "TK463DW" failed with error code 0xC0202009. There may be error messages posted before this with more information on why the AcquireConnection method call failed.
I have tried setting the property 'DelayValidation' to 'True' on all the Control Flow and Data Flow tasks on the package and on the Event Handler, but still I could not fix this.Not sure What I am missing.
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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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Feb 3, 2014
I recently upgraded to on 2012 SP1 CU5 and have found the SSDT gui for SSIS to be almost unusable. I can't drag or resize items. Any time i try they either automagically shrink to the tiniest possible size, shoot off to some extreme or just shake uncontrollably I didn't have these problems on previous versions (dont remember what It was).
Is there a fix for this?
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Sep 22, 2015
Basically i'm trying to create an SSIS workflow to download Sharepoint List data to SQL Server on a schedule of some kind.do we actually have to use the GAC install approach in order to get the Sharepoint List Destination and Sharepoint List Source entries to appear on the SSIS Project workflow entities?
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Jul 2, 2015
Is it possible to do? I'm getting lock violations in I try to execute several tasks in parallel.
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May 14, 2015
I'm trying to edit the Expressions of a Data Flow task. This seems to happen when I rename some of the Data Flow components but not always. The error I get is:
Element "[ADO Net Source].[SqlCommand]" does not exist in the collection "Properties"
However, if you look at the XML, this property does exist. So I'm not sure why this should occur.
I'm using SSIS 2008 R2 with Visual Studio 2008 V 9.0.30729.4462 QFE.
<component id="1" name="ADO Net Source" componentClassID="{2E42D45B-F83C-400F-8D77-61DDE6A7DF29}" description="Extracts data from a relational database by using a .NET provider." localeId="-1" usesDispositions="true" validateExternalMetadata="True" version="4" pipelineVersion="0" contactInfo="Extracts data from a relational database by using a .NET provider.;
[Code] ....
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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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