Is Possible To Call A VB.NET Function Within Derived Transformation Editor
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; -
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?
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()
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:
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:
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:
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
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.
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
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.
The "window" if you call it that to enter in complex derived column logic is painful (at best). At a minimum, the entry line should (just like in the cases where SQL is entered into a ole db command, sql exec etc) open a editor window to allow you to work in something other than a single long line.
In addition, allowing for cr/lf in the text would then allow the text to be formated/indented in meaninful ways. The issue now, once you nest a few statements together, it get VERY confusing and not easy to read since the whole thing is required to be on a single line.
(This same issue exists with line in which you need to enter the text in a conditional split).
I am reading in a deliminated file. In the Script Transformation Editor, if the UPC does not past the checksum test, I want to throw the row out right then. I am not sure how to do that...but it is probably really simple.] Thanks, Linda
Here is my script:
' Microsoft SQL Server Integration Services user script component
' This is your new script component in Microsoft Visual Basic .NET
' ScriptMain is the entrypoint class for script components
'Option Strict Off
Imports System
Imports System.Data
Imports System.Math
Imports Microsoft.SqlServer.Dts.Pipeline.Wrapper
Imports Microsoft.SqlServer.Dts.Runtime.Wrapper
Public Class ScriptMain
Inherits UserComponent
Private Function DoubleTest(ByVal Value As String) As Boolean
Dim d As Double
If Not Double.TryParse(Value, d) Then
'Windows.Forms.MessageBox.Show(Value + " is not numeric")
Can I add Output Columns to the Script Transformation Editor using code? I have to execute a SQL Statement to determine the number of years we have the data for for an item and then create the columns for the months in those years and populate them with the quantities. So my question is can I create output columns to the Script Transformation Editor on the fly that is as it is being executed?
I have a custom component that has no editor (i.e. NoEditor=TRUE in DtsPipelineComponent attribute).
This component derives all of its metadata based on the input (hence no editor is needed). What this means is that if the input changes in any way (e.g. the datatype of a column changes) my component will fail validation. That's not a problem, the problem is my Validate() method returns DTSValidationStatus.VS_NEEDSNEWMETADATA but ReinitializeMetaData() is not being called.
I get the familiar warning from the component: Warning 1 Validation warning. Data Flow Task: Normaliser: The component has inconsistent metadata. TestHarness.dtsx 0 0
and when I double-click on the component I get the familiar dialog box: TITLE: Editing Component ------------------------------ The component is not in a valid state. Do you want the component to fix itself automatically? ------------------------------ BUTTONS: &Yes &No Cancel ------------------------------
but when I click on 'Yes', nothing happens. RMD never gets called.
The workaround is to detach and reattach the input (which results in a call to ReinitializeMetadata() ) or set NoEditor=FALSE in DtsPipelineComponent attribute but I'd rather not have to do that because strictly speaking the user has no need to edit the component through advanced properties.
Is there another way around this problem? Is there a way to call RMD on a component that has no editor?
From SQL Server 2014, using SQL Server Data Tools for Visual Studio - BI, I'm trying to edit a Script Component within an SSIS Data Flow Task. The 'Edit Script...' button is enabled and turns a nice shade of blue when moused over, but a click has no effect. Perhaps I'm missing a component of VSTA? Everything else seems to work correctly. What might I be missing?
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
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.
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]:
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?
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:
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.
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.
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.
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...
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 ....
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
