SSIS - Data Flow To Flat File - Insert At Start Of File
Oct 24, 2007
Hi all,
In a foreachloop, I am inserting records into a flat file which is working fine. But the thing is that as the file grows, it takes longer for it to locate the EOF(End of File) of the flat file so as to insert the records.
I have around 70-100 lines written to the file at each loop and there are more than 20k records to be looped. wihich means that at the end I should be having 1400k - 20000k line in the text file.
One solution would be to insert the records at the start of the file itself so that it does not has to lookup the EOF each time before writting.
Another would be to generate separate files and then merge it.
Any idea how can this can be done?
Beside this I have to zip the file and then SFTP to a given address.
Any suggestion or help would be welcome.
Rdgs
David
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Nov 2, 2006
I'm importing a large csv file two different ways - one with Bulk Import Task and the other way with the Data Flow Task (flat file source -> OLE DB destination).
With the Bulk Import Task I'm putting all the csv rows in one column. With the Data Flow Task I'm mapping each csv value to it's own column in the SQL table.
I used two different flat file sources and got the following:
Flat file 1: Bulk Import Task = 12,649,499 rows; Data Flow Task = 4,215,817 rows
Flat file 2: Bulk Import Task = 3,403,254 rows; Data Flow Task = 1,134,359 rows
Anyone have any guess as to why this is happening?
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Jan 2, 2007
Hi Guys,
I
have a flat file which is loaded into the database on a daily basis.
The file contains rows of strings which I load into a table,
specifically to a column of length 8000.
The string has a length of 690, but the format is like 'xxxxxx xx xx..'
and so on, where 'xxxx' represents data. So there are spaces, etc present in the middle.
Previously
I used SQL 2000 DTS to load the files in, and it was just a Column
Transformation with the Col001 from the text file loading straight to
my table column. After the load, if I select len(col) it gives me 750
for all rows.
Once I started to migrate this to SSIS, I
allocated the Control Flow Task and specified the flat file source and
the oledb destination, and gave the output column a type of String and
output column width of 8000. But when I run the data flow task it
copies only 181 or 231 characters out of the 750 required.
I feel it stops where it finds the SPACES and skips the rest.
I
specified row delimiters or CR, and LF. I checked the file under
UltraEdit and there were no special characters in the file that would
cause the problem.
Any suggestions how I can get it to load the full data?
Thanks
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Apr 17, 2007
any suggestions on dealing with a flat file in the format below. I only want to process the data columns in the middle of the file and want to ignore all other rows. This was a very simple task in DTS with a small amount of VBScript in the transformation but it doesn't seem as straightforward in SSIS. thanks
......... file example ......
start-of-file
header1
header2
...
start-of-data
col0|col1|col2|col3|....
col0|col1|col2|col3|....
col0|col1|col2|col3|....
end-of-data
end-of-file
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Mar 29, 2006
How do I insert data from a flat file or .csv file into an existing SQL database???
Here what I've come up with thus far and I but it doesn't work. Can someone please help? Let me know if there is a better way to do this... Idealy I'd like to write straight to the sql database and skip the datset all together...
strSvr = "vkrerftg"
StrDb = "Test_DB"
'connection String
strCon = "Server=" & strSvr & ";database=" & StrDb & "; integrated security=SSPI;"
Dim dbconn As New SqlConnection(strCon)
Dim da As New SqlDataAdapter()
Dim insertComm As New SqlCommand("INSERT INTO [Test_DB_RMS].[dbo].[AIR_Ouput] ([Event], [Year], [Contract Loss],[Company Loss], " & _
"[IndInsured Loss Prop],[IndInsured Loss WC],[Event Info]) " & _
"VALUES (@Event, @Year, @ConLoss, @CompLoss, @IndLossProp, @IndLossWC, @eventsInfo)", dbconn)
insertComm.Parameters.Add("@Event", SqlDbType.Int, 4, "Event")
insertComm.Parameters.Add("@Year", SqlDbType.Float, 4, "Year")
insertComm.Parameters.Add("@ConLoss", SqlDbType.Float, 4, "Contract Loss")
insertComm.Parameters.Add("@CompLoss", SqlDbType.Float, 4, "Company Loss")
insertComm.Parameters.Add("@IndLossProp", SqlDbType.Float, 4, "IndInsured Loss Prop")
insertComm.Parameters.Add("@IndLossWC", SqlDbType.Float, 4, "IndInsured Loss WC")
insertComm.Parameters.Add("@eventsInfo", SqlDbType.NVarChar, 255, "Event Info")
da.InsertCommand = insertComm
Dim upComm As New SqlCommand("UPDATE [Test_DB_RMS].[dbo].[AIR_Ouput] " & _
"SET [Event] = @Event " & _
",[Year] = @Year " & _
",[Contract Loss] = @ConLoss " & _
",[Company Loss] = @CompLoss " & _
",[IndInsured Loss Prop] = @IndLossProp " & _
",[IndInsured Loss WC] = @IndLossWC " & _
",[Event Info] = @EventInfo", dbconn)
upComm.Parameters.Add("@Event", SqlDbType.Int, 4, "Event")
upComm.Parameters.Add("@Year", SqlDbType.Float, 4, "Year")
upComm.Parameters.Add("@ConLoss", SqlDbType.Float, 4, "Contract Loss")
upComm.Parameters.Add("@CompLoss", SqlDbType.Float, 4, "Company Loss")
upComm.Parameters.Add("@IndLossProp", SqlDbType.Float, 4, "IndInsured Loss Prop")
upComm.Parameters.Add("@IndLossWC", SqlDbType.Float, 4, "IndInsured Loss WC")
upComm.Parameters.Add("@EventsInfo", SqlDbType.NVarChar, 255, "Event Info")
da.UpdateCommand = upComm
da.Update(dsAIR, "TextDB")
************* ANY HELP WOULD BE GREATLY APPRECIATED************
THANKS
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Mar 29, 2006
How do I insert data from a flat file or .csv file into an existing SQL database???
Here what I've come up with thus far and I but it doesn't work. Can someone please help? Let me know if there is a better wway to do this... Idealy I'd like to write straight to the sql database and skip the datset all together...
strSvr = "vkrerftg"
StrDb = "Test_DB"
'connection String
strCon = "Server=" & strSvr & ";database=" & StrDb & "; integrated security=SSPI;"
Dim dbconn As New SqlConnection(strCon)
Dim da As New SqlDataAdapter()
Dim insertComm As New SqlCommand("INSERT INTO [Test_DB_RMS].[dbo].[AIR_Ouput] ([Event], [Year], [Contract Loss],[Company Loss], " & _
"[IndInsured Loss Prop],[IndInsured Loss WC],[Event Info]) " & _
"VALUES (@Event, @Year, @ConLoss, @CompLoss, @IndLossProp, @IndLossWC, @eventsInfo)", dbconn)
insertComm.Parameters.Add("@Event", SqlDbType.Int, 4, "Event")
insertComm.Parameters.Add("@Year", SqlDbType.Float, 4, "Year")
insertComm.Parameters.Add("@ConLoss", SqlDbType.Float, 4, "Contract Loss")
insertComm.Parameters.Add("@CompLoss", SqlDbType.Float, 4, "Company Loss")
insertComm.Parameters.Add("@IndLossProp", SqlDbType.Float, 4, "IndInsured Loss Prop")
insertComm.Parameters.Add("@IndLossWC", SqlDbType.Float, 4, "IndInsured Loss WC")
insertComm.Parameters.Add("@eventsInfo", SqlDbType.NVarChar, 255, "Event Info")
da.InsertCommand = insertComm
Dim upComm As New SqlCommand("UPDATE [Test_DB_RMS].[dbo].[AIR_Ouput] " & _
"SET [Event] = @Event " & _
",[Year] = @Year " & _
",[Contract Loss] = @ConLoss " & _
",[Company Loss] = @CompLoss " & _
",[IndInsured Loss Prop] = @IndLossProp " & _
",[IndInsured Loss WC] = @IndLossWC " & _
",[Event Info] = @EventInfo", dbconn)
upComm.Parameters.Add("@Event", SqlDbType.Int, 4, "Event")
upComm.Parameters.Add("@Year", SqlDbType.Float, 4, "Year")
upComm.Parameters.Add("@ConLoss", SqlDbType.Float, 4, "Contract Loss")
upComm.Parameters.Add("@CompLoss", SqlDbType.Float, 4, "Company Loss")
upComm.Parameters.Add("@IndLossProp", SqlDbType.Float, 4, "IndInsured Loss Prop")
upComm.Parameters.Add("@IndLossWC", SqlDbType.Float, 4, "IndInsured Loss WC")
upComm.Parameters.Add("@EventsInfo", SqlDbType.NVarChar, 255, "Event Info")
da.UpdateCommand = upComm
da.Update(dsAIR, "TextDB")
************* ANY HELP WOULD BE GREATLY APPRECIATED************
THANKS
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Nov 30, 2006
I have a table that holds in each record an image (varbinary(max) actually), a text reference for the image and a MIME type for the image. I need to read this table and for each record that has been created since the last run, I need to create a file with the image as the content, the mime type as the file extension and the text reference as the file name. There will be one file created per record found by the data flow source.
I was assuming that I could use the flat file destination and manipulate the file naming using the contents of each record in the flow but am completely stumped on how to achieve this.
Does anyone have any ideas?
thanks
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Jan 14, 2008
All,
I'm having an issue with the Flat File Data Flow Source returning only a limited set of the rows that are in the flat file. Basically, I connect to the flat file fine, it goes to retrieve the data (tab delimited file) and only returns 190 of 392 rows. Is there a limitation on the # of rows this data flow source can retrieve or something? I've look all through the settings and properties of the task as well as the connection manager and nothing is obvious as to what is causing this. Hopefully someone ou tthere has run into this before and can help me retrieve all rows. Thanks in advance!
bakerz
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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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Mar 11, 2008
How do i use the foreach loop container and pass each file found according to a specified pattern to a Flat File Source in a Data Flow Task Object so i can operate on each file found in the foreach loop object instead of having to specify a static file name
Thanks
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Mar 12, 2015
I am running a set of SQL statements on a SQL server, to insert flat file data into a SQL table. The flat file is already FTP'ed to the SQL server. I seem to be getting an error, which is possibly pointing to a permissions issue
The statements:
BULK INSERT [Jedox_prod].[dbo].[B_BP_Customer]
FROM 'c:jedox_dailyjdcom4401.txt'
WITH
(
FIRSTROW = 2,
MAXERRORS = 0,
FIELDTERMINATOR = '|',
ROWTERMINATOR = '
'
)
GO
The error is :
Msg 4861, Level 16, State 1, Line 1
Cannot bulk load because the file "c:jedox_dailyjdcom4401.txt" could not be opened. Operating system error code 3(failed to retrieve text for this error. Reason: 1815)
If it is permissions issue, how do I overcome this?
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Jan 15, 2008
I want to extract data from a table (based on a query) to a flat file.
So I have an OLE DB Source (data access mode SQL command) and then a flat file destination. The extract works finem except it extracts all table rows as one line in the file - whereas i want a separate line per DB record - what am I missing?
Thanks for any help!
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Feb 13, 2008
At our business we are getting a lot of PDF documents that are being hand keyed into a database. Has anyone heard ior know of a SSIS Data Flow Source component that I coud use to read thos documents into a data stream (?) and process?
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Nov 4, 2007
Hi everyone,
I am new to SSIS and I thought maybe someone would give me tips for solving the problem I am facing.
Overview:
I want to insert data contained in a flat file into several DB tables, which have N-M relations.
For illustration, I would explain the problem on a very simple DB:
1. The database contains the following 3 tables:
EMPLOYEE (EMP_ID, EMP_NAME)
PROJECT (PROJ_ID, PROJ_NAME)
EMP_PROJ (EMP_ID, PROJ_ID) , where EMP_ID and PROJ_ID are foreign keys referencing records in the EMPLOYEE and PROJECT tables respectively.
2. Each entry in the falt file contains the following data:
EMP_ID, EMP_NAME, PROJ_ID, PROJ_NAME
3. In SSIS, I have created a Data Flow Task containing:
- a path from a Falt File Source to an SQL Server Destination (Table: Employee)
- a path from a Falt File Source to an SQL Server Destination (Table: Project)
- a path from a Falt File Source to an SQL Server Destination (Table: Emp_proj)
Note: I used SQL Server Destination, because I need to import a huge amount of data and I read that this component performs better than the OLE DB Destination!
Questions:
1. I would like to eliminate EMP_ID and PROJ_ID from the Flat File Source. Instead, I would like these fields to be generated automatically upon insertion.
a. How can I do this and propagate the generated key among the different paths, which I have explained previously?
b. Can I first generate the two keys somehow then the parallel insertions into the different tables should start using the generated keys?
2. Is my solution correct in the first place? Or is there another better way for inserting data which belong to N-N relations?
Thanks in adavance,
Samar
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Jan 29, 2008
Hi,
I am trying to impliment a SSIS package where data source is a Flat file(.csv) file and destination is a sql server database.
The problem is my data source a flat file which consists of thousands of rows which are manually entered, so there is always a chance that in some rows they may miss a column value while entering data which results in an error.
Example: My flat file has headers like Sln, Name, Age, Designation. While entering data they may miss age and type it as 1,aaa,Consultant,,
Using SSIS package i want to track all row number in the flat file where data is entered wrongly so that i can correct only that row instead of checking all rows each time when my SSIS package throughs an error. I want to get all the row numbers in a sql server database which are wrongly entered.
Any suggestions are sincerly apriciated.
Thanks in advance
Regards,
gcs.
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Dec 21, 2006
Hello,
I have a problem with some in a file.
when i excute ma package to import data with my *.cvs file ssis bloqued le data flow in the line number 1042 and output this error : column delimiter note found for the column 50 wich is the last column .
How can i resolve this problème please.
Thanks all
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May 13, 2008
Hello Experts,
I am createing one task (user control) in SSIS. I have property grid in my GUI and 2 buttons (OK & Cancle).
PropertyGrid has Properties like SourceConnection, OutputConnection etc....right now I am able to populate Connections in list box next to Source and Output Property.
Now my question to you guys is depending on Source Connection it should read that text file associated with connection manager. After validation it should pick header (first line of text file bases on record type) and write it into new file when task is executed. I have following code for your reference. Please let me know I am going in right direction or not..
What should go here ?
->Under Class A
public override DTSExecResult Execute(Connections connections, VariableDispenser variableDispenser, IDTSComponentEvents componentEvents, IDTSLogging log, object transaction)
{
//Some code to read file and write it into new file
return DTSExecResult.Success;
}
public const string Property_Task = "CustomErrorControl";
public const string Property_SourceConnection = "SourceConnection";
public void LoadFromXML(XmlElement node, IDTSInfoEvents infoEvents)
{
if (node.Name != Property_Task)
{
throw new Exception(String.Format("Invalid task element '{0}' in LoadFromXML.", node.Name));
}
else
{
try
{
_sourceConnectionId = node.Attributes.GetNamedItem(Property_SourceConnection).Value;
}
catch (Exception ex)
{
infoEvents.FireError(0, "LoadFromXML", ex.Message, "", 0);
}
}
}
public void SaveToXML(XmlDocument doc, IDTSInfoEvents infoEvents)
{
try
{
// // Create Task Element
XmlElement taskElement = doc.CreateElement("", Property_Task, "");
doc.AppendChild(taskElement);
// // Save source FileConnection
XmlAttribute sourcefileAttribute = doc.CreateAttribute(Property_SourceConnection);
sourcefileAttribute.Value = _sourceConnectionId;
taskElement.Attributes.Append(sourcefileAttribute);
}
catch (Exception ex)
{
infoEvents.FireError(0, "SaveXML", ex.Message, "", 0);
}
}
In UI Class there is OK Click event.
private void btnOK_Click(object sender, EventArgs e)
{
try
{
_taskHost.Properties[CustomErrorControl.Property_SourceConnection].SetValue(_taskHost, propertyGrid1.Text);
btnOK.DialogResult = DialogResult.OK;
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
#endregion
}
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Aug 2, 2007
Hi,
I'm new to SQL Server 2005 SSIS. I'm trying to do something very simple, but I cannot figure it out, PLEASE HELP!
I have a flat file, which I read and then insert the data in a database table, that works fine. The problem is that I don't want to insert duplicate records. For example; if I run the package again, it will appent to the table. What I need to do is that if the package runs again, check if the record already exist, based one two columns, date and hour, and do not insert the record.
Thank you,
Aldo
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Dec 15, 2006
[Flat File Destination [46500]] Error: Data conversion failed. The data conversion for column "Column 0" returned status value 4 and status text "Text was truncated or one or more characters had no match in the target code page." What does this error mean exactly?
I am taking columns from a flat file source. Then I am adding some new columns then rewriting the file to a ragged file format with fixed column values. I've taken the Destination component off and it works fine. So I know it could be the destination component but what could it be? Any ideas?
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Feb 29, 2008
Each day I receive a file with a different name. For example, the name is filename_mmddyyyy.txt where filename_ stays constant and mmddyyyy is the date of the file. The file is always in the same format.
I want to build an SSIS where I pass it this file name. I can write a script to generate the correct file name. How do I build the SSIS so it can accept the input parameter and find the correct file to process?
Thanks
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Apr 24, 2007
It seems I can do the type conversion in two place:
1. The advanced editor for flat file source => Input and output roperties. And I can set the output columns data type properties there.
2. Using a Data conversion box in Data flow transformation.
Any difference between these two? Which one should be used?
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Apr 16, 2014
I have an source file and i have to load it into the data base by changing datatype of the columns in ssis
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May 19, 2015
I writing the data from sql table to flat file destination. I want to insert the record count in the first line of the destination file.
Record count must preceed 00.EX . Writing 4500 records from database should show 004500 in the first line of flat file.
I have an execute task to store the count in a variable now.
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Mar 2, 2007
I have a CSV Flat File Source with a Decimal column - but DataPrecision property is grayed out - why?
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Jan 12, 2007
I'm having a problem using the Flat File Source while using the underlying .Net classes to execute SSIS Packages. The issue is that for some reason when I load a flat file it Empty's out columns randomly. Its happening in the Flat File Source Task. By random I mean that most of the times all the data gets loaded but sometimes it doesnt and it empty's out column data. Interestingly enough this is random and even the emptying out of columns isnt a complete empty, its more like a 90% emtpying. Now you'll ask that is the file different everytime and the answer is NO. Its the same file everytime. If I run the same file everytime for 10 times it would empty out various columns maybe 1 of those times. This doesnt seem to be a problem while working with dtexec or the Package Executor utility. Need Help!!
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Jul 24, 2015
I have three tables in data base:
customer
product
sales
And i want to use SSIS package dynamically load data from database into three separate flat file, each table into each file.
I know i got to use for each loop task ADO.Net schema row set enumerator, with OLEDB connection manager, select table name or view name variable from access mode list, but the problem comes, as table name is dynamic then flat file connection is also dynamic, i am using visual studio 2013...
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Jun 17, 2015
I'm working on SSIS to load the data from flat file to sql server, I'm getting date in below format, but in sql server I have given data type datetime. how to convert below format to 16-01-15 12.05.19.1234 AM.
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Apr 20, 2015
I am working to archive some old data from a data warehouse using SQL server and SSIS. The data will be read and denormalized, then shipped out to a delimited text file.
The rowcount of the incoming data is significant, call it 10M+ rows per unit of work (one text file).
There are development advantages of using a stored proc for the data source - mainly ease of changing the denormalization logic as required. Wondering if there are performance advantages of an embeded query for the data source instead?
It was mentioned by one developer that when using a stored procedure, the output stream from the proc and subsequent SSIS steps cannot start until the full procedure processing is complete; i.e. the proc churns out its' result set in one big chunk.
He hinted that an embedded query does not have this same effect, but I am not sure that is accurate.
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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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Apr 3, 2015
I am unable to load data from flat file to sql table using bulk insert sql statement
My code:-
DECLARE @filePath VARCHAR(200)
DECLARE @sql VARCHAR(8000)
Declare @filename varchar(100)
set @filename='CCNVZ_150401054418'
SET @filePath = 'I:IncomingFiles'+@FileName+'.txt'
[Code] .....
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Apr 6, 2015
I am running my package in sql server 2012, in which i am giving network path for flat file destination. And its working fine. But if i give m local path, its giving me error " cannot open data file" ...
Nothing is wrong with package.
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Sep 30, 2015
I have requirement like to develop dynamic package for inserting data from flat file to table.
Find below points for more clarification :--
1) if I changed the flat file values and name in source variable AND the table name should be also changed based on variable value .
2) it should dynamically mapped with column values with source file as we have to insert data in target table.
See below diagram for more clarification.
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Aug 24, 2007
Hi,
I am testing SSIS and have created a Flat File Destination. I defined the Flat File Connection as New for the first time and it worked fine. Now, I would like to go back and modify the Flat File Connection in the Flat File Destination Editor, but it allows only to create a New connection rather allowing me to edit the existing one. For testing, I can go back and create a new connection, but if my connection had 50-100 columns then it would be an issue to re-create it from scratch.
Did someone else faced this issue?
Thanks,
AQ
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