Using User Variables In Derived Column Transformation
Apr 24, 2006
My derived column transformation with a user variable expression displays the user variable's default and not its assignned value.
Background: I built a script component that seems to effectively assign a new value to a user variable. I use local variables within the component, make the assignment in the PostExecute subroutine, and check by writing the user variable to a messagebox there.
In the derived column transformation I create a new column and insert the user variable in its expression field, add a data viewer, and send it to a data destination. The data viewer shows the user variable default and not the assignned value.
I replaced the user variable with a system variable in the expression field and that works fine.
Have folks successfully used this scenario before? Any ideas? Thanks.
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Mar 5, 2007
Hi,
I have dates in "mmddyy" format coming from the sources and they are older dates of mid 80s like 082580 for instance.
When I cast it this way (DT_DBTIMESTAMP) Source_Date , It says ok but throws a runtime error.
When I hardcode a date in same format, (DT_DBTIMESTAMP) "082580" , It becomes red (an indication of syntax error) . Please note that we use double quotes in expressions in Derived Column Transformation; So an anticipation that using double quotes over single ones would be the syntax problem would be wrong.
Any help in this will sincerely be appreciated.
Thanks
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Nov 3, 2007
Hi All
I m designing SSIS having Data Flow as
Flat File > Derived Column Transformation > Destination Table
but while transfering record from text file to table i need some logic here
my text file is
"ID"|"Name"
1012|"10AA"
1013|"10BB"
logic is 10 should be replace by variable VID = 98
I defined this veriable as int
My ID column in database is int and Name column is varchar(50)
I try here expression like
ID != 98 ? @[User::VID] : ID
it work fine
but for varchar column I am not able to do
I got error when i write expression
SUBSTRING(Name,1,2) != "98" ? [DT_STR, 50, 1252] "(@[User::VID])" + rest of value of column : [Name]
my final output in table should be like
ID..Name
98..98AA
98..98BB
Please help me out
T.I.A
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Mar 14, 2007
I have this expression
(Registered_Units == Limited_Units) ? 0 : (Painted_Units / (Registered_Units - Limited_Units)) * 100)
It gives me 0.00, although those 3 columns have values.
if I cast it like this
(Registered_Units == Limited_Units) ? 0 : ((((DT_DECIMAL,2)Painted_Units) / ((DT_DECIMAL,2) (Registered_Units - Limited_Units))) * 100)
It gives me correct answer in whole number but .00 after decimal.
Any clue how to fix it ?
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Sep 20, 2007
Hello.
I am using Derived Column transformation for calculating the age of individual and then adding the column to my final destination. In SQL, the DOB is varchar(50) and the output column I am creating should be Integer.
Here is the expression I am using for calculating the age:
(DATEDIFF("DAY",(DT_DBTIMESTAMP)TRIM(DOB),(DT_DBTIMESTAMP)TRIM([Service Date])) / 365.25)
In SQL, I have no problems getting the age of a person, but I am having difficulties using Derived Column Transformation.
I get the following error when executing my package:
Error: 0xC0049067 at Data Flow Task, Derived Column [2086]: An error occurred while evaluating the function.Error: 0xC0209029 at Data Flow Task, Derived Column [2086]: SSIS Error Code DTS_E_INDUCEDTRANSFORMFAILUREONERROR. The "component "Derived Column" (2086)" failed because error code 0xC0049067 occurred, and the error row disposition on "output column "_AGE" (2877)" 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.
Any assistnace would be greatly appreciated.
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Oct 15, 2007
I would like to transform trans_type
if transtype =1 then Y
if trasntype = 2 then N
if transtype = 3 then U
What is the correct syntax to do this in derived column editor?
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May 8, 2008
Greetings, I am attempting to create a flat file delimited by |. I am using (ISNULL(LIN1_OPT_ADDR) ? "" : LIN1_OPT_ADDR + "| ") to replace the blank address column with the pipe delimiter. So that a row that would consist of:
Customer Number,Name,Address Line1,City,State
12345,ACE HARDWARE INC. ,801 Rockefeller St.,New York, New York
56789,BUILDING SUPPLY INC., ,Wichita, Kansas
Should end up as:
12345|ACE HARDWARE INC.|801 Rockefeller St.|NEW YORK|NEW YORK
56789|BUILDING SUPPLY INC.||Wichita|Kansas
When I run the data flow to create the flat file the file contains the following:
12345|ACE HARDWARE INC.|801 Rockefeller St.|NEW YORK|NEW YORK
56789|BUILDING SUPPLY INC.| | |Wichita|Kansas
Can anyone tell me what I am doing wrong?
Thanks.
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May 7, 2008
I am trying to change the value from "T" to "A" in trans_type column based on the value in Transfer_of_Provider column..
I like to change "T" to "A" if the value of Transfer_of_provider column is "Y".
"Transfer_of_provider" coulmn has NULL value..
I've used the below logic to do that... but becuase of NULL value in "Transfer_of_provider" column .. it keep giving me a truncation error..
TRans_type = (ISNULL(Transfer_Of_Provider) ? "N" : Transfer_Of_Provider) == "Y" ? "'T" : "A"
How can I make this work?
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Aug 24, 2007
Can i call the FUNCTION within another FUNCTION
Like SUBSTRING(CHECK_NO,2,LEN(CHECK_NO) - 1) ???
I am reading the Check_No "1234321" from the flat file. The file holds all the value within double quote and values are sepearated by comma.
Objective: I am trying to elimiate the double quote using "Dervied Column'.
Strange: The above FUNCTION is working fine while construct the SQL Query.
Pls help me. Thank you.
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May 20, 2008
Hi all€”Given a date field called [Reading Date] and a time field called [Reading Time], I am attempting to use the following transformation on the field to test for nulls and combine the data into a single field called [Reading Date/Time]:
(DT_WSTR)([Reading Date]== "") || ISNULL([Reading Date]) || (DT_WSTR)([Reading Time]== "") || ISNULL([Reading Time])? (DT_DBDATE)GETDATE() : (DT_DATE)(SUBSTRING((DT_WSTR,8)[Reading Date],5,2) + "/" + SUBSTRING((DT_WSTR,8)[Reading Date],7,2) + "/" + SUBSTRING((DT_WSTR,8)[Reading Date],1,4) + " " + SUBSTRING((DT_WSTR,8)[Reading Date],1,8))
I get the following error:
Error at Data Flow Task [Derived Column1[177]]: Attempt to parse the expression "(DT_WSTR)([Reading Date]== "") || ISNULL([Reading Date]) || (DT_WSTR)([Reading Time]== "") || ISNULL([Reading Time])? (DT_DBDATE)GETDATE() : (DT_DATE)(SUBSTRING((DT_WSTR,8)[Reading Date],5,2) + "/" + SUBSTRING((DT_WSTR,8)[Reading Date],7,2) + "/" + SUBSTRING((DT_WSTR,8)[Reading Date],1,4) + " " + SUBSTRING((DT_WSTR,8)[Reading Date],1,8))" failed. The expression might contain an invalid token, an incomplete token, or an invalid element. It might not be well-formed or might be missing part of a required element such as a parenthesis.
Here is a sample [Reading Date]:
05/07/08
Here is a sample [Reading Time]:
19:45:48
I need to be able to handle exceptions if one or both contain NULL or no data at all. Any suggestions on how to fix this?
Thanks,
Jon
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Mar 7, 2006
Hi.
I am using the following expression to check if the first charcter of a string is not the letter "E" and if it is, strip it off by selecting the remainder of the string:
SUBSTRING([Derv.comno],1,1) == "E" ? SUBSTRING([Derv.comno],2,10) : [Derv.comno]
This is ok in 99.9% of cases, but ideally I would like to be able to check, and alter the string if the first charcter is anything but numeric
I had something like this in mind:
SUBSTRING([Derv.comno],1,1) != ("1","2","3") ? SUBSTRING([Derv.comno],2,10) : [Derv.comno]
but the syntax is incorrect.
Could you tell me if what I am attempting is actually possible, and if so, point me in the right direction regarding the syntax!
Thanks
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Feb 7, 2008
Hello All,
Can someone help me out in providing the STEPS to solve this problem. My scneario is, I've a table which has got 2 fields and 5 default row values have been filled in. Now, using the above, duirng package runtime, it need to dynamically create additional field and has to store values like for.e.g (0001 America). I'm getting the following error while executing the ssis package.
1. [DTS.Pipeline] Warning: Component "Derived Column" (1170) has been removed from the Data Flow task because its output is not used and its inputs have no side effects. If the component is required, then the HasSideEffects property on at least one of its inputs should be set to true, or its output should be connected to something.
2. [DTS.Pipeline] Warning: Source "OLE DB Source Output" (87) will not be read because none of its data ever becomes visible outside the Data Flow Task.
Please suggest with your valuable solution at the earliest.
Thanks
Vaiydeyanathan.V.S
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Oct 31, 2007
Can somebody please help me with the implementation of a logic in round off to the left of a decimal point.
Something like this in excel "=ROUND(x/12*31%,-2)" is to be implemented in SSIS. The Round function in the derived column is not permitting -2 for the length parameter. Please help
Value x Excel SSIS
627900 16200 16221
187000 4800 4831
277760 7200 7175
763000 19700 19711
1387500 35800 35844
1465200 37900 37851
2725000 70400 70396
292800 7600 7564
317200 8200 8194
The table lists the values for X in the formula and the respective result calculated by Excel. I would want SSIS to give the same results like excel is giving. Please help me to make it work.
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Aug 30, 2006
Help...
I'm having trouble coming up with a valid expression in my derived column transformation editor that tests the input column for NULL and responds something like this:
if[message] isNull then "NA" else [message]
where [message] is the input column.
Thanks!
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Oct 31, 2007
Can somebody please help me with the implementation of a logic in round off to the left of a decimal point.
Something like this in excel "=ROUND(x/12*31%,-2)" is to be implemented in SSIS. The Round function in the derived column is not permitting -2 for the length parameter. Please help
Value x Excel SSIS
627900 16200 16221
187000 4800 4831
277760 7200 7175
763000 19700 19711
1387500 35800 35844
1465200 37900 37851
2725000 70400 70396
292800 7600 7564
317200 8200 8194
The table lists the values for X in the formula and the respective result calculated by Excel. I would want SSIS to give the same results like excel is giving. Please help me to make it work.
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Aug 6, 2007
Hi All
I've got a flatfile which contains a column SALEDATE with this data
20070802
''
20070804
''
20070805
20070901
I've got a table with a column SALEDATE datetime.
I use a derived column with this expression
SALEDATE <add as new column> (DT_DBDATE)(SUBSTRING(SaleDate,1,4) + "-" + SUBSTRING(SaleDate,5,2) + "-" + SUBSTRING(SaleDate,7,2)) database date [DT_DBDATE]
This expression fails whenever it comes across a blank field.
How can evaluate my expression to insert a null if it comes across a blank field?
Thank You
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Aug 30, 2006
Help...
I'm having trouble coming up with a valid expression in my derived column transformation editor that tests the input column for NULL and responds something like this:
if[message] isNull then "NA" else [message]
where [message] is the input column.
Thanks!
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May 11, 2007
I am trying to pass a variable set by a Row count transformation to a derived column transformation. There are actually three separate Row Count transformations storing to different variables. In the derived column trans. the expression i am using is @[User::ClientCount] and the variable type is Int32 and I am passing it to an I4 database column. After the derived column trans. all rows just come out with 0s in the row count columns. Does anyone know why this would be? Please let me know if you need more information.
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Aug 23, 2007
I am trying to put the following as an expression in the SSIS Derived Column Transformation Editor.
DATEADD(DAY, DATEDIFF(DAY, 0, GETDATE()), 0)
It is not allowing it. This works fine in a regular SQL statement.
Does anyone know how I can get this to work?
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Mar 28, 2007
Dear friends, can any one tell me how to assign null to the expression value in derived column transfromation editor?
thanks,
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Apr 26, 2006
I'm importing a csv-file delimited with semicolons. Firstly I LTRIM the columns "in place" and the data imports fine. All the numbers in right columns in the target table. Then I add another Derived Colum Transformation to replace decimal character comma (,) to a dot (.) in order to convert the string/varchar value to numeric. But here I run into trouble. Running the task ends in success but the result in the target table (same as above) is not. All the commas are now dots as expected but what is worse is that SSIS have added values in cells that should not be there. I get values in cells that shoud be empty!
Shortly: Only LTRIM([Column1]) as expression and "Derived Column" as Replace 'Column1' works OK.
But adding REPLACE-expression (i.e REPLACE(LTRIM([Column1]) , "," , ".") to this breaks things up
I'm aware that I could do this with SQL but this is not the point...
Any ideas?
BR Jompe
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Jun 4, 2015
I have the following 2 fields that are sourced from an Excel spreadsheet
DocNumber - a 10 digit number
PostingRow - a number between 1 and 999
I would like to produce a new column that is a concatenation of these two fields, but the PostingRow needs to be a 3 digit number eg. 1000256153-001 ....
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Mar 7, 2008
i have too many DTS packages to migrate to SSIS, and while examining a DTS package in BIDS (converted with the migration utility) i tried to edit the resulting migrated package, which opened the DTS interface with the two connection icons joined by the big fat arrow with a gear on it...not exactly what i had in mind, iow, it looks like SSIS on the outside, but its still DTS on the inside.
So I stripped out a series of components from a more complex package hoping that simplifying it would reveal the contents of old DTS Transformations tab at least partially set up in a Derived Column transformation.
Can i get there from here, or must i recreate every stinking definition in a derived column manually from the ground up?
thanks very much for your help
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Jul 30, 2015
I have flat file source from which data is imported to a Sql table.The target column is int and input column is string .The column has some numeric values and some blank values.when I tried to convert into int values it fails.
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May 12, 2007
Hi
I'm a relative SQL Server newbee and have developed a function that converts mm/dd/yyyy to yyy/mm/dd for use as in a DT_DBDATE format for insert into a column with smalldatatime.
I receive the following erros when using the function in the Derived Column Transformation Editor. First, the function, then the error when using it as the expression Derived Column Transformation Editor.
Can anyone explain how I can do this transformation work in this context or suggest a way either do the transformation easier or avoid it altogerher?
Thanks for the look see...
******************************
ALTER FUNCTION [dbo].[convdate]
(
@indate nvarchar(10)
)
RETURNS nvarchar(10)
AS
BEGIN
-- Declare the return variable here
DECLARE @outdate nvarchar(10)
set @outdate =
substring(@indate,patindex('%[1,2][0-9][0-9][0-9]%',@indate),4)+'/'+
substring(@indate,patindex('%[-,1][0-9][/]%',@indate),2)+'/'+
substring(@indate,patindex('%[2,3][0,1,8,9][/]%',@indate),2)
RETURN @outdate
END
********************************
And the error...
expression "lipper.dbo.convdate(eomdate)" failed. The token "." at line number "1", character number "11" was not recognized. The expression cannot be parsed because it contains invalid elements at the location specified.
Error at Data Flow Task [Derived Column [111]]: Cannot parse the expression "lipper.dbo.convdate(eomdate)". The expression was not valid, or there is an out-of-memory error.
Error at Data Flow Task [Derived Column [111]]: The expression "lipper.dbo.convdate(eomdate)" on "input column "eomdate" (165)" is not valid.
Error at Data Flow Task [Derived Column [111]]: Failed to set property "Expression" on "input column "eomdate" (165)".
(Microsoft Visual Studio)
===================================
Exception from HRESULT: 0xC0204006 (Microsoft.SqlServer.DTSPipelineWrap)
------------------------------
Program Location:
at Microsoft.SqlServer.Dts.Pipeline.Wrapper.CManagedComponentWrapperClass.SetInputColumnProperty(Int32 lInputID, Int32 lInputColumnID, String PropertyName, Object vValue)
at Microsoft.DataTransformationServices.Design.DtsDerivedColumnComponentUI.SaveColumns(ColumnInfo[] colNames, String[] inputColumnNames, String[] expressions, String[] dataTypes, String[] lengths, String[] precisions, String[] scales, String[] codePages)
at Microsoft.DataTransformationServices.Design.DtsDerivedColumnFrameForm.SaveAll()
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Mar 29, 2006
Hi there,
is there a way that I can set the value of a column to the currrent user in a derived shape?
For instance if I want to set the value of a column to the current data I can merely use GETDATE().
What is the current user equivilent?
Thanks
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Jul 22, 2015
how to declare multiple derived columns in SSIS Derived Column Task in one attempt.as i have around 150 columns coming from Flat file. I had created the required Expression in Excel and now i want add those in derived column task but its allowing only 1 expression at a time.
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Dec 19, 2006
Hi:
In the derived column transformation editor, I have a Derived column name called FileGroupID. I would like to pass in a value for this column from a variable that I have set earlier in the scope. Can someone let me know, how to write the expression that does that and where do I specifiy that expression. I am thinking its the expression field in the derived column transformation editor. My main question is how to actually write the expression, what is the syntax to pull the variable value? Thanks.
MA2005
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Oct 11, 2007
I would like to creat a new column called Load_Dt and hard-coded as 06/30/2006 ( date data type) in derived transformation... how can i do this?
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Mar 5, 2008
Hi,
In a nut shell I want to be able to instruction some Data Analysts on how to modify SSIS packages using the simpliest solutions possible. This is because there are many different data sources and some of these data sources have a huge number of fields, and yes you guessed it these data sources are subject to change on a regular basis.
A very common task they will need to do is to modify an SSIS package to do a to transform of a source date string format of "YYYYMMDD" into a date data type field within a table.
Similar threads have advised the use of the Data Flow Transformations->Derived Column for this sort of thing.
So within the Expression Text box I have inserted the following SSIS compatible SQL to convert the above string into a british format date data type; -
Code Snippet
(SUBSTRING(DOB_SRC,8,2) + "/" + SUBSTRING(DOB_SRC,5,2) + "/" + SUBSTRING(DOB_SRC,1,4))
But really what I want to be able to do is to instruct the Data Analysts to do is something like; -
ConvertTextToDate(DOB_SRC)
Where I previously defined that behaviour of ConvertTextToDate as a public VB.NET function.
Can someone please help. I'm pretty certain I'm not the only one with this type of requirement.
Thanks in advance,
Kieran.
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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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May 1, 2008
Hi,
I have Variable , data source and conditional transformation which checks the count(*) if the count == 0 then I connect an script component and change variable to false(initial it is True) and write into a log file...
Then I check that variable on predence constarint at workflow if variable==True then success. BUT
Whenever I run the package my dataflow gets green even the condition does not meet like count==0 . So
my variable's value is "False". Actually if the condition doesnt meet then my script shouldnt work.
Am I missing something???
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Mar 31, 2008
The logic I am trying to recreate via SSIS is the following SQL statement:
insert into db3.dbo.targettable1 -- Target database table
(SiteC,
Objecte,
Attrib1)
select distinct ?,
?,
from ? -- Source database table
join dbo.targettable2 c1 -- Target database table
on c1.Alias = ? and
c1.CSetID = ? and
c1.FacID = (select f.PFacID
from dbo.Fac f
where f.FacID = ?)
where not exists (select * from dbo.targettable2 c -- Target database table
where c.Alias = ? and
c.FacID = ? and
c.CSetID = ?)
I have an OLE DB Source that consists of an expression to approximate the following portion of the Above Select statement:
Select ?,
from ? -- Source database table and
The package has 2 global variables User:CSetID and User::FacID whose scope is global to the package and whose values are set within a Foreach Loop Container outside of the Data Flow Task
I was trying to reference the 2 global variables within the Looup Transformation to recreate the following portion of the SQL statement.but encounter errors:
join dbo.targettable2 c1 -- Target database table
on c1.Alias = ? and
c1.CSetID = ? and
c1.FacID = (select f.PFacID
from dbo.Fac f
where f.FacID = ?)
In the Advanced Editor window of Lookup Transaction
select * from
(select * from [dbo].[targettable2 ]) as refTable
where [refTable].[Alias] = ? and [refTable].[FacID] = ? and
[refTable].[CSetID] = ?
Is there away to reference global variables in a Lookup Transformation that are set outside a Data Task Flow?
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