I want to execute the XML source after a script component is complete n SSIS data flow. i.e based on whether the script fails or passes the xml source flow should start (in the data flow). Is there any simpler way to do it.
I cannot create a connector because XML source doesn't have any inputs.
Got it, i can add a script task instead of script component in dataflow. And make a flow from script task to data flow.
Related
I'm writing a (what I thought to be a) simple SSIS package to import data from a CSV file into a SQL table.
On the Control Flow task I have a Data Flow Task. In that Data Flow Task I have
a Flat File Source "step",
followed by a Data Conversion "step",
followed by a OLE DB destination "step".
What I want to do is to move the source CSV file to a "Completed" folder or to a "Failed" folder based on the results of the Data Flow Task.
I see that I can't add a File System step inside the Data Flow Task, but I have to do it in the Control Flow tab.
My question is how do I do a simple thing like assign a value to a variable (I saw how to create variable and assign them a value at the bottom pane of Data Tools (2012)) depending of if the "step" succeeds or fails?
Thanks!
(You can tell by my question that I'm an SSIS rookie - and don't assume I can write a C# script, please)
I have used VB or C# scripts to accomplish this myself. Since you do not want to use scripts I would recommend using a different path for the project to flow. Have your success path lead to moving the file to completed and failure path lead to moving the file to failed. This keeps it simple and accomplishes what you are looking for.
In SSIS, I should save a part of control flow to another file and take it when needed. Is it possible?
Yes you can do this using the "Execute Package Task"
Take the relevant part of your control flow and put it into a brand new package. This will be your "child" package.
Back in your original "parent" package, add the "Execute Pacakge Task" to your control flow.
Configure the Execute Package Task to point to your saved child package from step #1.
What is the difference between control flow and data flow in a SSIS package along with some examples please.
Thanks.
In data flow task, it is mandatory that data needs to be made flown/transferred from a source to destination. Whereas in control flow task it is not.
Control Flow:
Control Flow is part of SQL Server Integration Services Package where you handle the flow of operations or Tasks.
Let's say you are reading a text file by using Data Flow task from a folder. If Data Flow Task completes successfully then you want to Run File System Task to move the file from Source Folder to Archive Folder. If Data Flow Task failed then you want to send email to your users by using Send Mail Task. The Precedence Constraints are used to control the execution flow.
Data Flow:
Data Flow is the part of SQL Server Integration Services Package, where data is extracted by using Data Flow Sources ( OLE DB Source, Raw File Source, Flat File Source , Excel Source etc.). After extacting data Data Flow Transformations such as Data Conversion, Derived Column, Lookup, Multicast,Merge etc are used to implement different business logics and finally written to Data Flow Destinations (OLE DB Destination, Flat File Destination,Excel Destination,DataReader Destination ADO NET Destination etc.)
Take a look at This post for more details.
Click on the Control Flow Tab and observe what items are available in Tool Box
Similarly Click on the Data Flow Tab observe what items are available
At present I have source XML file, from which I am truncating some values using XSLT file. For this I am using “XML task” in control flow.
Then after getting the resultant file manually I am submitting the resultant XML file to XML source and then loading the data into an SQL table.
If there a better approach to do the same in one go ?
Novice to SSIS. So if possible could someone give example or link to any example to accomplish this
The SSIS Package can contain both control flow as well as one or more data flows. you need to include your both XML Task and Data Flow Task (having XML Source for loading data to sql table). Connect these executable and task in control flow using precedence constraints . This SSIS Package will be automated.
Saving Result from XML Task to file or variable.
In XML Task Editor,
Set SaveOperationResult to True
Set OperationResult\DestinationType either to File Connection or
Variable
Define New Variable or File Connection from Destination property or
select existing one.
In XML Source Editor, select "XML data from Variable" or "XML File Connection" and then specify details in the XML location accordingly.
I'm working on SSIS 2008.
On the Control Flow of my ssis I have an Execute SQL Task which connects to a Data Flow Task giving the Data Flow Task a value on a variable.
On the Data Flow Task I have a Script Component which would have an sql query and the sql query would work with the variable value.
I want the Script Component to "receive" or "take" the variable as a parameter so I can work with the parameter value.
What I want is something like an OLE DB Source has: If one double clicks on the Ole Db Source and put Sql Command on Data Access mode, you can see the Parameters button, and there you can put the parameter and assign a variable to the parameter.
I have tested the Script Component options, but until now I have not seen a functionality like Ole DB Source has.
How can I do this with a Script Component?
Thanks.
If you're using an OLE DB Source component, you should be able to map parameters just like you do in an Execute SQL Task. Simply use a ? as the variable placeholder.
If you are using an ADO.NET connection, it's more painful as the parameters must be mapped outside of the actual data flow. See this answer for more detail.
If you have a pressing business need for using the Script Component, then by all means use it. Click the ellipses on the ReadOnlyVariable property of the Script Transformation Editor window.
In the resulting window, scroll down and check all the variables you will need access to.
Now in your Script Task you will be able to reference those variables. The syntax should be something like this.ComponentMetadata.Variables.MyVariableName