SSIS Derived Column
Mar 6, 2013
Two questions regarding Derived Columns in SSIS
1. In a if else expression if condition is false how do you keep the value of the source column eg: Name == "" ? "Unknown" : Name
Above will change all the non blank values to Name and not the actual value
in the Name Column eg. John
2. I have a column (unicode string)that stores date and time (The source is flat file) Is it possible to write expression to select the 1st day of month based on that date, and use this derived column as input to a table with a datetime field.
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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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Oct 5, 2007
Hi,
I apologize if this question has already asked (I already looked in this forum but do not find the answer), I need to have this done as soon as possible. I've following data:
column1 column2 begin_date active
------------- ------------ ---------------- -----------
1253 1057 1/1/2006 0
1253 1057 1/1/2007 0
1253 1057 4/1/2007 0
1253 1057 7/1/2007 1
I need to have the final result as following: (the new end_date column is the value of the begin_date in the next row -1)
column1 column2 begin_date active end_date
------------- ------------ ---------------- -------- ------------------
1253 1057 1/1/2006 0 12/31/2006
1253 1057 1/1/2007 0 3/31/2007
1253 1057 4/1/2007 0 6/30/2007
1253 1057 7/1/2007 1 null
Any ideas?
Thank you!
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Feb 8, 2008
I need to check if the date is Null then use today's date and if not do something else.
If RowModifiedOn IS NULL Then
GETUTCDATE()
ELSE
DATEADD("Hh",@[User::TimeZone],RowModifiedOn)
End If
What do I do wrong here? Can I do something like it?
RowModifiedOn == NULL ? GETUTCDATE() : DATEADD("Hh",@[User::TimeZone],RowModifiedOn)
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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Nov 19, 2014
How would one add this as a derived column
CASE
WHEN Data IS NULL
THEN NULL
WHEN SUBSTRING(REPLICATE('0', 9 - LEN(Data)) + CAST(CYCLE_YYYYMM AS VARCHAR(9)), 4, 6) IS NULL
THEN 0
ELSE RTRIM(SUBSTRING(REPLICATE('0', 9 - LEN(Data)) + CAST(Data AS VARCHAR(9)), 4, 6))
END
From what I have seen the first option is not really required
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Jul 15, 2015
How to use derived columns in SSIS
string to datetime
Input value : (string)
14/03/2014
NULL
15/04/2015
Note : Having null or blank value
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Oct 5, 2006
Hi,
I am trying to upload a csv file into a destination SQL Server table using Data FLow objects in MS SQL Server 2005 SSIS. My destination table X has a date column while my source data file (for which i have a flat file connection) does not have a date column. I created a Derived column for date using the system date function in my Source data object and ran the package but it returned errors. I changed the data type of the derived column but I still get errors.
is there any other way i can get the date on the fly i.e generate a date for the incoming source file and map that (insert into) to the destination table ?
Thanks.
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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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Nov 23, 2015
I am trying to figure out my expression here with derived columnÂ
source
Unavailable/Planned
output
Planned(which is after "/".
I achieved this in sql but not finding solution in SSIS Derived column transformation.
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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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May 18, 2015
Derived column that transforms a CASE statement?
CASE
WHEN [MAIN_GAME] IS NULL AND combo.[CAT_PRODUCT] ='25' THEN 'Standalone'
WHEN [MAIN_GAME] IS NULL AND combo.[CAT_PRODUCT] <> '25' THEN 'No main game'
ELSE LOWER(prod.[TX_PRODUCT_NAME])
END AS [TX_MAIN_GAME]
CAT_MAIN_GAME = nvarchar(6)
FK_GAME = nvarchar(2)
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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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Jun 26, 2006
Hi ,
I am Using Derived column between Source and Destination Control. the Source input column PriceTime is String Data type. but in the Destination is should be a DATE TIME column. How to Convert this string to DateTime in the Derivied Column Control.
I already tried to in the Derived column control
PRICEDATETIME <add as new column> ((DT_DBTIMESTAMP)priceDateTime) database timestamp [DT_DBTIMESTAMP]
But still throwing Error showing type case probelm
Pls help me on this
Thanks & Regards
Jeyakumar.M
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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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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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Sep 11, 2007
Posted - 09/10/2007 : 15:53:26
Hey all - got a problem that seems like it would be simple (and probably is : )
I'm importing a csv file into a SQL 2005 table and would like to add 2 columns that exist in the table but not in the csv file. I need these 2 columns to contain the current month and year (columns are named CM and CY respectively). How do I go about adding this data to each row during the transformation? A derived column task? Script task? None of these seem to be able to do this for me.
Here's a portion of the transformation script I was using to accomplish this when we were using SQL 2000 DTS jobs:
'**********************************************************************
' Visual Basic Transformation Script
'************************************************************************
' Copy each source column to the destination column
Function Main()
DTSDestination("CM") = Month(Now)
DTSDestination("CY") = Year(Now)
DTSDestination("Comments") = DTSSource("Col031")
DTSDestination("Manufacturer") = DTSSource("Col030")
DTSDestination("Model") = DTSSource("Col029")
DTSDestination("Last Check-in Date") = DTSSource("Col028")
Main = DTSTransformStat_OK
End Function
***********************************************************
Hopefully this question isnt answered somewhere else, but I did a quick search and came up with nothing. I've actually tried to utilize the script component and the "Row" object, but the only properties I'm given with that are the ones from the source data.
thanks in advance!
jm
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Dec 21, 2007
Can anyone show how to alter the value in a column using DerivedColumn component when creating an SSIS package programatically.
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Mar 25, 2008
Table structure as follows
Employee
Empno empname salary
commission
I want to have an other employee table named employee_modified
Empno empname salary
commission derived_column1(salary+commission)
derived_column2(derived_column1 + xxxx) and so on derive other
columns based on the earlier derived columns)
Is that possible to do it.. or am I doing something wrong.
something like
Select empno , empname , salary , commission,
(salary + commission) as derived_colum1 ,
(derived_colum1 + xxxxx) as derived_colum2 ,
(derived_colum2 + xxxxx) as derived_colum3
into employee_modified from employee
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Feb 25, 2008
Hi, how are you?
I'm having a problem and I don't know if it can be solved with a derived column expression. This is the problem:
We are looking data in a a sql database.
We are writting the SQL result in a flat file.
We need to transform data in one of the columns.
For example: we can have 3 digits as value in a column but that column must be 10 digit length. So we have to complete all the missing digits with a zero. So, that column will have the original 3 digits and 7 zeros. How we can do that tranformation? We must do it from de the flat file or it can be a previous step?
Thanks for any help you can give me.
Regards,
Beli
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May 6, 2008
Hi, wondering if anyone can help me. I currently have a field that has a date and time in it in the format dd/mm/yyyy hh:mm:ss. Ideally I would like to get rid of the time part of it altogether but for it to still be recognised as a date as opposed to a string. However, I've been told that this is not possible in 2005, is this true? If this is the case, what would be the best way to set the time to 00:00:00 after the date for all records on that field?
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Jan 30, 2007
I have two columns made up of 4 digits numbers eg col1 1234, col2 9876
I want to create a derived column so i get a eight digit column, eg col3 12349876
I cannot seem to get the expression right, I seem to be always adding the value which i do not want, can someone help me out with the expression
Thanks
Robbie
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Dec 3, 2007
I am trying to transfer data from SQL Server 2005 table to another SQL Table. In the source table there is a field called Region [nvarchar(max)]. The values for these fields will be like APAC-China, NA-Racine, etc., i.e Region followed by the country name seperated by - symbol. I want the destination tablre with 2 fields Region[nvarchar(max)] and Country [nvarchar(max)]. I am using a Derived Column task to achieve the same.
Can anyone please help me out in doing this data conversion?
Thanks
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Nov 2, 2007
Hi,
I am doing a task which will get all data based on several base and crosswork tables. I used stored procedure to get the data, but the next step will be using derived column to massaging data, and to load to the destination database. Is there a way to do that since I must generate data on the fly?
Thanks,
Megan
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Jul 16, 2007
Hi Guys,
How can i put in a derived column the value of 3 columns? I've tried these:
[MyId]+[Paper1]
"[MyId]+[Paper1]"
but no luck. How can i put it right?
Thanks
Gemma
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Mar 31, 2008
I am trying to create a derived column from two separate fields. One is a date field in format of 2008-03-01 and one is a time field. In DTS I use to have something like this:
DTSDestination("TransactionDate") = cdate(DTSSource("DSRHDATI")) & " " & timevalue(DTSSource("DSRHTIME"))
I am trying to figure out how to do this in SSIS. I know I have to use a dervived column but can't seem to come up with the correct syntax. Any help would be apprecaited. thanks.
Stacy
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Jun 6, 2007
Can someone help me with the following query? I need to take the derived value from one column and calculate another column with it.
SELECT UserID,
((SELECT COUNT(*) FROM HPN_LeadMatches)+(SELECT COUNT(*) FROM HPN_Painters)) As Total,
(SELECT COUNT(*) FROM HPN_Leads) / Main.Total
FROM HPN_LeadMatches As Main
The error i'm getting says is unkown column 'total'. Is there another way to accomplish this?
Thanks!!
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Jul 26, 2006
In a Derived Column data flow transformation, why can't I refer to a derived column (added in that same transformation) in the expression for another derived column? It seems I am forced to chain 2 DC data flows, just to do something as conceptually simple as:
a = x + y; b = a²
On a related note: Can I define a variable that is scoped to each row? Can I bind a variable in an expression to avoid creating a new row, e.g.
let a = x + y; a²
as the expression for new row b?
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Jan 27, 2006
Hi everyone,
I have a quizzing application where users log in, answer questions, and are ranked relative to each other. For this final ranking, I calculate their score using this formula -
score = (correct Qs answered) * 150 / (total Qs answered) + (total Qs answered)
The SQL query that i use to get this info is -
Code:
SELECT TOP 50 username, (sum(correct) * 150 / count(1) + count(1)) AS score, count(1) as totalq
FROM questionsstats
GROUP BY username
ORDER BY score DESC
This works just fine.
However, on top of this I need to put an additional restriction that only users who have at least answered 20 questions be counted in. How can I do this? Adding a simple 'WHERE totalq > 20' does not work. I get the error "Invalid column name 'totalq'.".
Surely there must be a simple way to do this?
Thanks.
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Apr 4, 2007
Hello, first time here, first time messing with SQL.
When creating a table in SQLServer2005 can you specify a column to be for a derived attribute. example a column monthlysalary and create a column that is a derived attribute - yearly salary. Is this done when creating the table and how is the syntax ?
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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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Feb 14, 2008
I would like to validate datatype using Derived Column.My data type are such as numeric(X,X),datetime,int, and varchar.How do I do this using Derived Column.Example if row does not qualify as ISNUMERIC()...throw it in ERROR table else send it to SUCCESS table.Any Idea ?
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Jan 10, 2006
Hi,I have a view that looks something like this -CREATE VIEW myview AS SELECTmyudf(col1) as col1, col2, col3FROM mytableThe view has an 'INSTEAD OF' trigger on it to do the correct thing oninsert. When I run the bcp, it runs successfully, but the valueinserted into col1 is always NULL. I modified my trigger to get abetter idea of what was happening, and when I look at the values ofINSERTED.col1, they are all null. It appears that bcp is setting thecolumn value to null, presumable because the view definintion for thiscolumn is a derived column.Does any one know a way around this?Thanks!
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