SSIS Data Cleansing Mapping Problem
Apr 18, 2007
I am just starting out with SSIS and trying to get the feel of data cleansing using it. But on my very first project for data cleansing I've got into this weird error.
My data flow is very simple, it has a OLE DB source, Fuzzy Lookup and OLE DB destination. I've built three tables for this purpose, one is source, one is reference (it will be used to match for the real entries in fuzzy lookup) and the last is the destination table.
In all the three tables I've a field of City which I'd like to Fuzzy lookup in the reference table and if it crosses certain confidence level, I'd like to insert to the destination table. City in all the tables has the same datatype, defined in the same way, it is varchar(50).
But when in the fuzzy lookup I try to map the Source tables City field to reference tables City field, it gives me this error:
The following columns cannot be mapped:
[City, CityRef]
One or more columns do not have supported data types, or their data types do not match.
Although as I have mentioned before, both have same data types and are defined in the same manner (i.e. I've just selected the datatypes for those columns and all the other settings are left to default). I just cannot understand why this is happening, plz help me with this. FYI I've also tried to give the City Column different datatypes in all the tables like varchar(max), text, Only to be greeted with the same error message.
Waiting for your reply!!
Regards,
Sajid.
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Mar 19, 2008
Hi Friends,
I have a small problem in parameter mapping for Execute SQL Task.
I am using a delete statement with 2 conditions.
Followed by another Execute SQL Task which contains commit statement.
delete from tname where c1 = ? and c2 =?
where c1 is number(4) datatype and c2 is of varchar2(20) datatype in oracle.
The connection manager i am using is ORacle OLE DB provider.
I am passing 2 global variables i.e g_v1 of Int32 and g_v2 of String Type.
In the parameter mapping of the Executing SQL task, i am mapping these 2 variables for
c1 and c2 and changed the datatypes inside parameter mapping as Numeric for c1 and Varchar for c2.
I also set the property as ByPassPrepare = True.
When i am executing the package i getting INVALID NUMBER ERROR.
i believe the SSIS is unable to perform the implict datatype converison.
For the next run, i changed the g_v1 varible datatype to Double and also i changed the parameter mapping for c1 as Doble datatype.
This time it is working fine. I can see the Green signal for the 2 SQL Tasks.
But when i connected to Oracle check the count in the table, the data is not getting deleted.
Also,
I set the property RetainSameConnection = TRUE for oracle connection manager.
I am not able to trace this logical error.
The same is working fine in my local machine.
But i am facing the problem when i deployed the same on the client machine.
Is there any problem with parameter mapping?
What should be equialent Datatype for Oracle NUMBER datatype that should be used inside the SSIS package while declaring the global variable and
inside the parameter mapping.
Any thoughts!
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Apr 1, 2008
Hi
How could I find a vendor of address data cleansing tool integrated into SSIS pipeline?
I need to remove duplicates,
correct zip 5+4 code and
add Lon/Latitude information for a zip.
Many thanks,
OB
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Jul 30, 2002
Does any one knows any software used for Data Cleansing? Or is there any tools with SQL Server 2000 for Data Cleansing? I look forward to hearing from anyone.
Regards,
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Aug 16, 2007
Hi,
I use lookups to map surrogate of level 1 dimensions to my fact tables in SSIS.
But how to handle a level 2 dimension with a ValidFrom and a ValidUntil date field?
I do not use an IsCurrent column, because this could problem with late arriving facts.
- In dts I used an SQL statement like this:
update SA
SET SA.DimProdRef = Dim.RecordID
FROM SAWarenEingang SA, DimProd Dim
where SA.ProduktNumber = Dim.ProduktNumber
and SA.ArtikelkontoBewegungsdatum between Dim.ValidFrom and Dim.ValidUntil
Now in SSIS I want to handle the whole thing in the data flow without using a staging table:
- Using Lookups: I would have to pass the date column for each inside the fact table into the lookup. That does not work.
- Using Execute SQL in the data flow: would be very slow, because the statement will be executed for any line in the dataflow
Any ideas?
Best regards,
Stefoon
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May 11, 2007
I have sql server 2005 developer edition and vs2005 team system.
I want's to use data cleansing feature.i.e.
Integration Services Advanced Transforms Includes data mining, text mining, and data cleansing
Can please some body points me to any good webcast about using this feature
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Mar 28, 2014
I have a large poorly designed table (inherited) With a Name field that contains comma delimited text containing address information. I need to do several things with it but unfortunately there doesn't appear to be any true consistency in it. When it displays in its own text box it works by placing each section on a new Line and looks ok.But I need to pull it apart and place things like unit number, Building Name in its own column etc. In the data it could be in either the 2nd,3rd, 4th, dependent on what came 1st. the data looks some thing like the following
unitNumber/StreetNumber Space StreetName (Building Name), Subub,City,Country
Some addresses won't have unit number or Suburb or country so when splitting you could have Suburbs and Citys in multiple columns even if you try and stagger the split process.Has any body go a good tool or reference site for dealing for this sort of problem. I have a table that I have made up that has some of the street names that could be used for comparing against existing records but it is by no means fool proof due to spelling inconsistencies . I also have another list of Common building names that could be used to compare, remove and place in the new building column.
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Mar 29, 2008
Hi all
I have two data sources - an excel spreadsheet and one access database of Customer details, (quite small in size) and I have to use SQL Server 2005 to Integrate the data and cleanse the data so that I could (in theory) import it into a CRM system (though I won't actually be importing it) as this is for coursework only.
Is there a simple steps to do this is SQL server and guides that I can follow that are relevent? As there are lots of tutorials and I haven't a clue where to start.
many thanks
little_tortilla
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Feb 7, 2008
I have a character field that should contain either a number or space in one of my transitions but it is coming over with junk in it occasionally. What is the best way to ensure that this data is only numeric or a space? Whenever I hit a < or ] one of those weird symbols I want to replace it with a space in my target field. It is SQL Server to SQL Server.
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May 8, 2008
Dears
I am trying to to make a dynamic column mapping using the SSIS, the mapping will be stored in a seperate table, and based on the file name, the necessary mapping will be applied.
Please advise its possibility.
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Jan 29, 2008
Hi
I have migrated a DTS 2000 package to an SSIS package.
Half of it works fine, when stored procedures are called that don't use parameters they work fine on SSIS.
However when a SP is called with a parameter it can't find the parameter name ?
I have mapped the parameter under "parameter mappings" , the parameter is a simple date value
which is created at the beginning of the SSIS package in a SQL task.
it is saved as a global variable , and i have mapped this as the parameter , yet it still can't find the param. name ?
any sugestions ?
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Dec 21, 2006
Hi,
My Destination columns are more than source columns....
So, how to do column mapping if my source and destination columns are different?
Thanx,
Ruja
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May 25, 2007
I'm creating a DTSX that will load flat file data into a table. Pretty easy, eh? Not with dates and times ...
The column in the destination table is a datetime data-type.
The date format in the source flat file is "m/d/yyyy" ("5/27/2007"). I know it doesn't have a time portion, long story!
When I create the package and transform the flat file data into the SQL Server Destination, the table column returns as a timestamp datatype. Moreover, there's no mechanism (that I've found) to force the destination datatype to datetime. There's DB Date, DB Time, FileTime, etc ... but no plain-old datetime.
Any help? An answer? An online resource? A book?
Thanks a mill'
Michael
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Mar 19, 2008
Hi pals,
I have a small problem in parameter mapping for Execute SQL Task.
I am using a delete statement with 2 conditions.
Followed by another Execute SQL Task which contains commit statement.
delete from tname where c1 = ? and c2 =?
where c1 is number(4) datatype and c2 is of varchar2(20) datatype in oracle.
The connection manager i am using is ORacle OLE DB provider.
I am passing 2 global variables i.e g_v1 of Int32 and g_v2 of String Type.
In the parameter mapping of the Executing SQL task, i am mapping these 2 variables for
c1 and c2 and changed the datatypes inside parameter mapping as Numeric for c1 and Varchar for c2.
I also set the property as ByPassPrepare = True.
When i am executing the package i getting INVALID NUMBER ERROR.
i believe the SSIS is unable to perform the implict datatype converison.
For the next run, i changed the g_v1 varible datatype to Double and also i changed the parameter mapping for c1 as Doble datatype.
This time it is working fine. I can see the Green signal for the 2 SQL Tasks.
But when i connected to Oracle check the count in the table, the data is not getting deleted.
Also,
I set the property RetainSameConnection = TRUE for oracle connection manager.
I am not able to trace this logical error.
The same is working fine in my local machine.
But i am facing the problem when i deployed the same on the client machine.
Is there any problem with parameter mapping?
What should be equialent Datatype for Oracle NUMBER datatype that should be used inside the SSIS package while declaring the global variable and
inside the parameter mapping.
Is there any way to see/look the sql statement which is formed after Parameter Subsititution inside the log file?
Can we print the SQL Statement Formed by the Execute SQL task inside a script task ?
Any help would be greatly appreciated !
Thanks in advance
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Jan 28, 2008
Hi all,
I am transferring a huge Database running on PostgreSQL to SQL SERVER using SSIS. I have already mapped all the columns between source and target tables. Is it possible in SSIS to get a graphical diagram showing all the source and targets tables and its mapping?
Thanks in Advance,
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Oct 10, 2007
I created a Stored Proc to compute all the data I need to export to a CSV file.
I use the provider MS OLE DB Provider for SQL Server.
It's a very simple package with a single Data Flow Task.
This flow task is using an OLE DB Source to call a simple SQL Command : Exec MyStoredProc.
There are no params.
This Stored Proc is using table variables to compute the data.
It takes about 10 seconds to return anything.
The problem is that the mapping doesn't work with the OLE DB Source.
There are no fields at all shown in the mapping screen.
I tried to replace the Stored Proc by a version which only returns fields and no data.
Then the mapping would work just fine.
The package is then compiling and working fine.
But everytime I put back the real stored proc, even without changing the SQL Command, the SSIS execution breaks at execution.
It keeps saying :
"Error: 0xC0202005 at Data Flow Task, OLE DB Source [477]: Column "RecordType" cannot be found at the datasource."
My guess is that SSIS doesn't wait the 10 secs and thinks the Stored Proc is not returning anything.
What can I do to make this work ?
Thanks,
Vincent
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Aug 3, 2007
I have a condition where if column5 is equal to 1 then put column6 into the destination column "dest6", if it is not equal to 1 then put column6 in destination column "dest7"
What is the best way to do this in SSIS?
If I have to use the conditional split then do I have to copy my complete mappings, exact change this one column?
Thank for the help this mapping will take me a long time!
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Jul 16, 2014
I am new to SSIS and i got 1 assignment.
Requirement:
In my destination table i am having some 30 columns and the CSV files what i get may have 10 columns or 20. How do I map columns between source and destination dynamically?
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Jan 4, 2008
I had to use use ssis 2005 in a short project recently & had littletime to work it out. I was importing a whole bunch of flat files intoSQL Server tables with many derived columns and transformations inbetween.It seems to automatically map columns from the flat file to columns inthe sql table where the names of the columns are equal. But can italso do it automatically on position, so flat file column 1 goes tosql table colum 1, etc, etc? In each flat file I had to manually clickand drag the columns across to map them which took a very long time asthere were hundreds of columns in some tables!Thanks.
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Nov 2, 2007
I have a script and on one of the tables I keep loosing the mapping of the last 4 fields. If I go into the task it will ask me if I want it to automatically fix it and I say yes and remap fields but when I run it it bombs and comes back and when I go back into it it tells me there is a problem with same fields. It also rearanges the order and puts these fields last.
I have tried deleting and redoing the transformation only to have the same thing happen. Almost seems like a bug in software. I have seen this before but usually when I fix it it does not return.
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Jan 12, 2008
Hello everyone,
I am having a little problem with a simple package and I do not know if this is a known issue or that I am missing something.
I have a data flow task, a simple one, with an oledb source pulling data, using a select statement, from a sql server 2005 instance, and an ole db destination pointing to a table in a sql server 2000 instance. Both intances are standard edition. The table in the destination has a column which allow null values and has also a default constraint (getdate()), and this column is not present in the source. When I map the columns in the destination, I leave this column as "ignore", not being mapped to any column from the source. The problem is that when I execute the task, SSIS is trying to insert NULL value into this column, so the package fail with the error "can not insert NULL value into column myColumn". I wonder why is it trying to insert NULL value if the column is not mapped to any column from the source.
Is this a known issue or I am nissing something in the settings?
If the destination table has rowversion or identity columns, there is no problem ar all. I ignore those columns in the mapping and SQL Server feeds them as expected.
Thanks in advance,
Alejandro Mesa
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Jun 25, 2007
I have created a package which transfers data from a SQL server source to an Excel Destination. The DataFlow Task works fine , if i pre-define the column names in the Excel Destination... But i run into an error when i give the blank excel sheet as my destination. I am unable to map any columns
A sample example is as shown above .. In the column mappings field only one column in the Excel shows up for mapping and eventually throws the error "[Excel Destination [42]] Error: The number of columns is incorrect. "
How do we proceed in this case , where in we do not want to give pre-defined coulmn names in the Excel Destination sheet.
Thanks,
D
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Nov 2, 2015
I have some source files is there today it will have 4 columns..Tomorrow it will have 10 columns...my package is dynamically load the data to destination table..How we have do it in Using script task...
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Oct 14, 2005
Does anyone know of any cross-references between SQL Server data types and the new data types introduced with SQL Server Integration Services?
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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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May 28, 2004
Has anyone used DTS packages for migrating old data to a new schema?
If so are there any tutorials on this?
I'd prefer not to do this by hand. ;-)
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Jun 20, 2007
I can€™t figure out how to map xml data stored in a table to a variable in integration service.
For example:
I would like to use a €œfor each loop container€? to iterate through a row set selected from database. Each row has three columns, an integer, a string and an xml data. In the variable mappings, I can map the integer column and the string column to a variable with type of int and a variable with type of string. But I am having trouble to map the xml data column to any variable. I tried using either a string variable or object. It always reports error like €œvariable mapping number X to variable XXX can€™t apply€?.
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Nov 4, 2006
Hello,Our company often receives data from outside sources to add to our application. This data is usually provided to us in Excel, CSV, XML, etc. The files that we receive usually have different columns from the columns in our database, so we have to map these columns to our table structure to import.I'm looking for an application that will easily allow me to load up the data file (whatever type it may be), expose the columns in the data file, allow me to map these columns in our SQL server, then import the data. I know that this can be done as DTS, however I'm looking for alternatives. Does anyone have any recommendations? Thanks in advance.
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Jun 21, 2014
I am developing one automation tool for data migration from one table to other table, here i am looking for one function or SP for which i will pass source column and destination column as input parameter and want output parameter to return true when source column data is compatible to copy to destination column if not then it should return false.
For example if source column is varchar and destination column is integer, the script should check all the data in source column in good enough to move to integer column or not and return the output flag. I want a script to work this for all types of data types.
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Mar 4, 2008
Hi,
I have an Excel source > Data Conversion task > OLE DB Destination.
In the Data Conversion task I rename all the outputs to match the column names in my destination table.
However, when I go to map the columns in the OLE DB Destination mapping tab, it's a mess. Some fields are prefaced by "Data Conversion" as in "Data Conversion.column1", others are prefaced by "Excel Source" and others have no prefix at all.
What's confusing is, since all the columns are going through the Data Conversion task, how come I don't have ALL fields prefaced by "Data Conversion" ?
That is, only SOME of the fields have a "Data Conversion" prefix, and some don't. The ones that aren't prefaced by "Data Conversion" have no corresponding "Excel Source" so I'm assuming that the ones without the prefix are from the Data Conversion task.
It's inconsistent. Any ideas.
Thanks
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Oct 3, 2007
Can anyone recomend an EXTREEMLY user friendly web based data mapping / conversion tool? I am wanting to transform csv, xml, database sources into csv, xml, db sources. There are a ton of Windows based applications (ie: www.altova.com / mapforce). I am looking for something I can expose via the web...
users has ability to upload a csv file and then define how the data would be mapped to an output source (say another csv or xml). In addition having functions like concantination, sum, if-exists, etc...
Does SSIS have a user friendly interface or has someone written some interactive tools on top of SSIS.
Any information will be greatly apreciated.
Thanx
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Jul 20, 2005
Hi Can anyone point me to a document somewhere that shows a mapping ofSQL Server 2000 datatypes to C datatypes? I am writing some extendedstored procedures which need to be able to process pretty much anydata type, so I want to make sure I am taking them from SRVPROC andstoring them in the correct C data type.Thanks,Bruce
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Sep 27, 2007
Hi,
Is there a way to accomplish one- many or many -one or many - many column mappings in the SSIS data flow task or using any other tasks. We were able to do this in DTS Transform data task. Also is it possible to edit the mapping like:
dest column1 = Right(dest column1, 3)
Thanks.
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