Modifying Shared Data Source At Runtime
Mar 20, 2007
Hi all,
I have several reports using single shared datasource. I want to change at a runtime database that is used by that datasource. Can this be achieved? If not what are the other solutions €“ I guess that using not shared datasource for each report may be the solution (is it?) but it is not the best solution for me. My goal is to allow users to run the same set of reports, viewed in ReportViewer control, but using different databases (connection string dependant).
Thanks in advance for any suggestions
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Sep 13, 2007
Please help figure out what is wrong with my code. The script is supposed to load a package (from file). The loaded package already has everything set up to run a query against a local server and output the results to an Excel file. The reason for the outer script is because I need to change the query based on a global variable. When the query changes, though, I think the existing dataflow Path is no longer valid, so I should remove it and re-create another one with the new input mappings. Here is my code, which runs and throws an exception at the AcquireConnections call.
The error is
Error: 0x2 at Script Task: The script threw an exception: Exception from HRESULT: 0xC020801B
I pieced together this code from the examples in the online books, but I am not sure what to do.
' Microsoft SQL Server Integration Services Script Task
' Write scripts using Microsoft Visual Basic
' The ScriptMain class is the entry point of the Script Task.
Imports System
Imports System.Data
Imports System.Math
Imports Microsoft.SqlServer.Dts.Runtime
Imports Microsoft.SqlServer.Dts.Pipeline
Imports Microsoft.SqlServer.Dts.Pipeline.Wrapper
Public Class ScriptMain
Public Sub Main()
'
Dim app As Microsoft.SqlServer.Dts.Runtime.Application = New Application()
Dim package As Microsoft.SqlServer.Dts.Runtime.Package = _
app.LoadPackage("c:systimeExcelOutExcelOutExcelOutDo.dtsx", Nothing)
Dim pkgVars As Variables = package.Variables
Dim gsVar As Variable = pkgVars("User::gsExcelFile")
Dim currVars As Variables = Dts.Variables
Console.WriteLine(Dts.Variables("User::gsExcelFile").Value)
gsVar.Value = Dts.Variables("User::gsExcelFile").Value
pkgVars("User::gsQuery").Value = Dts.Variables("User::gsQuery").Value
pkgVars("User::gsCreateTable").Value = Dts.Variables("User::gsCreateTable").Value
Dim e As Executable = package.Executables("ExcelOutTask")
Dim thMainPipe As Microsoft.SqlServer.Dts.Runtime.TaskHost = _
CType(e, Microsoft.SqlServer.Dts.Runtime.TaskHost)
Dim dataFlowTask As MainPipe = CType(thMainPipe.InnerObject, MainPipe)
' Get the source component.
Dim SourceComponent As IDTSComponentMetaData90 = _
dataFlowTask.ComponentMetaDataCollection("Local Source")
Dim srcDesignTime As CManagedComponentWrapper = SourceComponent.Instantiate()
srcDesignTime.ProvideComponentProperties()
' Reinitialize the metadata.
srcDesignTime.AcquireConnections(vbNull)
srcDesignTime.ReinitializeMetaData()
srcDesignTime.ReleaseConnections()
' Get the destination component.
Dim destination As IDTSComponentMetaData90 = _
dataFlowTask.ComponentMetaDataCollection("Excel Destination")
Dim destDesignTime As CManagedComponentWrapper = destination.Instantiate()
destDesignTime.ProvideComponentProperties()
' Create the path.
dataFlowTask.PathCollection.RemoveAll()
Dim path As IDTSPath90 = dataFlowTask.PathCollection.New()
path.AttachPathAndPropagateNotifications(SourceComponent.OutputCollection(0), _
destination.InputCollection(0))
'Console.WriteLine(dataFlowTask.PathCollection.Count)
Dim ret As DTSExecResult
ret = package.Execute()
Console.WriteLine(ret.ToString)
Dts.TaskResult = Dts.Results.Success
End Sub
End Class
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Dec 19, 2006
I experimented a strange behavior using connections for data source inside packages in vss 2005.
Suppose we have a tab1 in a develpment source db and in a test source db:
tab1 dev db contains 100 records
tab 2 test db contains 200 records
I start developing a package using an 'ole db data source' task inside a data flow. When I change the data source from dev to test, strange thinks happens.
The 'ole db source task' retrieve only 197 records ... but if I open the connection inside the connection manager pane and only after i click on the 'test connection' button tI get 200 records.
The source db is a sql 2000 db server and I use ole db provider for sql server.
Cosimo
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Aug 10, 2007
How can i get the shared data sources i created in the report manager to be available in VS.net to be able to assign to a report. I want to be able to create the shared data source first in Report manager and then be able to assign it a report in VS.Net
Thanks.
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Jan 12, 2015
Was wondering if there was a best practice minimum permissions for creating a SQL login to use when setting up a new shared Data source for SSRS report manager?
Something along the lines of them being a data read for the DB and permissions to update tempdb?
Would have thought it not advisable to have the login be able to update the main db...
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Jun 21, 2005
I have an archive of an Analysis Services database that was created on a server that is not accessible to me. I also have a copy of the source SQL Server database that it uses as a data source. I have restored both of these to my server. I have figured out how to change the data source to point to my server for the fact tables referenced, but I can't figure out how change the data source for the shared dimensions. I would like to be able to do work on this version of the database, but I get errors when I try to browse the dimension data because it can't connect to the original data source. Any ideas?
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Dec 7, 2007
I see that a .rds file was created as a result of me defining a shared data source. So are they meant to be shared across projects only within the same solution, across solutions perhaps with references, system wide etc?
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Jan 5, 2007
I'm trying to use stored credentials to enable caching. I've created a special windows user account with minimum permissions for just this task, and once set up, it works great (almost).
I can update the shared data source using SQL Mgt Studio or directly via the Report Manager to use a set of -windows- stored credentials. But I don't seem to be able to do the same via VS.NET 2005. I can only store -SQL- credentials, which I have no need to enable and no desire to add to my surface area.
The problem lies that every time I deploy any report that using that data source (which is nearly all of them), the data source is re-published, which wipes out the stored credentials and caching immediately stops.
I've tried messing with the XML directly, with no luck, and changing assorted advanced settings, but nothing seems to stick.
Obviously I can manually update the credentials each time I deploy something, but surely it seems that there must be a better way. Is there a way to either set the DS to use stored windows credentials, or just plain prevent the deployment of the DS every time a dependent report is published?
Suggestions?
Geof
P.S. SQL 2005 Standard Ed SP1 32-bit
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Aug 16, 2007
I created the shared data source and the report in VS 2005. After deploying the report to the Report server and trying to access it produces the following error.
An error has occurred during report processing.
Cannot create a connection to data source 'kv_testQA'.
ERROR [IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
I checked to see if the Data source exists in the Report Server and it does. But it still produces the error. What is the issue here.
Thanks for the help.
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Nov 29, 2006
Hello
I have a defined data source to an oracle server. I've alredy intalled oracle client, and setup my data source to save the user and password. I'm using .NET provider/OracleClient DataProvider Connection. When I click on "Test Connection" Button, SSIS reports SUCCESS. In Connection Manager TAB I created on connection called "OracleServer" from my oracle data source, described above.
In my package, I defined a DataReaderSource task, I specified "OracleServer" as a connection to it. I can preview data and view oracle's columns name..., so it make me think that everything is fine. But when It execute the task it FAIL and notify logon error and that password can't be blank.
Please help, I need read from the oracle server!!
Thank you.
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Feb 15, 2006
All,
I need to pass a variable to get source data from Oracle on OLE DB source. The variable is defined by an Execute SQL task (previous step) on the control flow and it is a package level variable.
In the data flow, OLE DB source using €˜SQL command from variable€™. The variable sql command works when it just: Select *from table
But I need the variable SQL command like this:
Select * from table where last_modified_date > ? - - variable1
the variable1 is defined by anther Execute SQL task at runtime
Can someone give some light on this?
Many thanks
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May 10, 2006
Hi -- I am fairly new to SSIS development, although I am starting to appreciate it more an more, especially since I have started getting into extending the object model. Here's my question:
I have a data flow that pulls data from any number of different delimited files with different numbers of columns. I have had no problem dealing with setting up run-time file locations and file names by using the expressions of a flat file data source, and i have been able to pretty easily deal with varying file delimiters by standardizing the files before they get into the data flow. however, I have not been able to come up with a solution that will allow my data source to discover its column info at run time, and then pass that information on to the data flow task. all i really care about is being able to properly parse the individual rows into individual column data by the flat file data source because the data flow itself is able to discover the actual data that the columns hold at run-time.
i would very much appreciate any feedback from anyone on possible solutions for this.
thanks!
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Oct 30, 2007
First off, let me just say that I'm a complete newbie to SQL Reporting Services, and .NET in general. We have a VB 6 application that is trying to launch an SRS 2005 report in a viewer window. This was accomplished by creating A VB.NET "wrapper" window that launches the report, and allows the report to be previewed, exported, etc. I did not write any of this.
The report is using a Shared Data Source, which points to a specific database. My problem is that the users can select which db they want when they launch the VB 6 Application, so I need to find a way to edit the connection string in the report to specify which database to use on the fly. I have the db name in the "wrapper" application, but I can't figure out how to pass it to the report.
thx,
Paul
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Jun 19, 2015
I'm using a shared data source to connect an Oracle server in my packages. After changing the database user password in the shared data source, I noticed the package concerned would fail with the following description.
Source: "OraOLEDB"Â Hresult: 0x80004005Â Description: "ORA-01017: invalid username/password; logon denied".
Is there a way to ensure the packages will use the latest information in the shared data source? I did do a Rebuild before executing the packages.
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Apr 18, 2008
Hi,
I am having a Data flow task in For each loop which will gets 100 sourcetable names and 100 target table names...
am having a simpleData flow task which trasferes from OLEDBSource to OLEDBDestination.
I am repeating the Dataflow task which transfers from sourcetablename extracted from for loop to a destination table var.
The problem am gettting is for the first table it is able to transfer correcly because I did mapping for those tables at design time...but for the next coming sourcetable-desttable (which r having different no of cols,datatypes) its giving Validation failed...and...needs to refresh metadata....
is there any way to refresh the metadata of Data flow task (I set the property of OLEDBSource validate external meta to false then also same error is coming)
Thanks
Radhika
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Nov 12, 2014
We have a job running the SSIS Package. I am working with that SSIS Package. The SSIS package has a script task. In the script task they used the variable of source path. I want to change the value of that variable (Need to modify the source path).
I modified the variable value in that package and in the config file but getting error message
Exception has been thrown by the target of an invocation.
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May 12, 2015
Could we use SSRS Shared Dataset as a source to the SSIS package?
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Apr 12, 2007
Hiya guys,
The question:
Can I design data flows with an XML Source pointing to file system xml files, and but run them against variables? I can see the properties at design time (Accessmode=0,1,2; XMLDataVar="User::XMLData), but the XMLSource object doesn't appear to have expressions enabled to change this at runtime, nor do these properties seem to be exposed to configurations.
The scenario:
I have a package that reads through (potentially thousands) of XML files, and having identified the embedded message "type", transforms them via XSLT to an easier XML format (XML Datasource can't cope well with multiple namespaces etc). Then send this the new file off to a type specific dataflow task to send contents to database.
For performance (and other) reasons I'd rather XSLT to a single shared variable and use this variable as the XML source in the data flows (Rather than writing out to the filesystem [via xslt] and immediately reading it back in each time [via datasource]).
But designing the data flow task using a variable as xml source is frustrating for a bunch of reasons - not the least being:
(a) The variable needs to be populated with sample xml data at design time. But this could only ever match one dataflow at a time (fine at run time, but painful at designtime - leading to validation errors popping up all around the place.)
Yes I could have a seperate variable for each xmlsource - but that just makes things more complicated up front and also leaves me with 20+ large, type specific, xml variables floating around at runtime of which only one is ever being used per import - which just doesn't feel right to me.
(b) populating the variable with sample xml at design time is painful due to it being a string - and not accepting hard returns etc that are in text files, design time changes etc)
Using a file XML source at design time is infinitely easier, when I get a design time change - I can just amend the XSLT and run the appropriate task to produce a sample XML file to design against.
Any ideas?
Ta.
Gus.
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Aug 23, 2006
Hi,
I've seen a number of posts similar to this but i still cannot figure out what i need to do to get it working. So here goes with a couple of newbie questions.
Question 1:
Once created how do i go about executing a SSIS package. I want to be able to call it from a C# application from which i pass in a couple of parameters?
Question 2:
How do i go about setting the file path of my Excel source to a dynamic value passed at runtime. I want to be able to loop through a number of Excel files and do some processing on them. I've set up a variable (which i think i need to do) after that i get stuck however. Some other posts suggest configuration packages but i cannot get my head around how they work?
Any help on this matter would be gratefully recieved.
Thanks in advance,
Grant
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Feb 15, 2008
Hello
In our company, after switching to Office 2007, Access 2007 runtime is installed on our general user machines.
Everything is just fine and beautiful, except that there is one issue with runtime:
Several forms in my Access Project use stored procedures in SQL Server 2000 as their record source. When i try to open the forms in Access 2007 Runtime on user machines, i receive an error that "The record source dbo.Myprocedure speified on this form or report does not exist ".
I use dbo.ProcName format and the forms open correctly in my full version Access.
What could be the problem?
Thanks!
Elman
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Mar 13, 2008
hi ,
i am trying for a drill through report (rdlc)
ihave written the following code in drill through event of reportviewer, whenever i click on the first report iam getting the error like
An error has occurred during report processing.
A data source instance has no
t been supplied for the data source "DetailDS_get_orderdetail".
the code is
using System;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
//using Microsoft.ApplicationBlocks.Data;
using Microsoft.Reporting.WebForms;
using DAC;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
ReportViewer1.Visible = false;
}
protected void Button1_Click(object sender, EventArgs e)
{
DAC.clsReportsWoman obj = new clsReportsWoman();
DataSet ds = new DataSet();
ds = obj.get_order();
ReportViewer1.LocalReport.DataSources.Clear();
ReportDataSource reds = new ReportDataSource("DataSet1_get_order", ds.Tables[0]);
ReportViewer1.LocalReport.DataSources.Add(reds);
ReportViewer1.LocalReport.ReportPath = "C:/Documents and Settings/km63096/My Documents/Visual Studio 2005/WebSites/drillthrurep/Report.rdlc";
ReportViewer1.LocalReport.Refresh();
ReportViewer1.Visible = true;
}
protected void ReportViewer1_Drillthrough(object sender, DrillthroughEventArgs e)
{
DAC.clsReportsWoman obj = new clsReportsWoman();
ReportParameterInfoCollection DrillThroughValues =
e.Report.GetParameters();
foreach (ReportParameterInfo d in DrillThroughValues)
{
Label1.Text = d.Values[0].ToString().Trim();
}
LocalReport localreport = (LocalReport)e.Report;
string order_id = Label1.Text;
DataSet ds = new DataSet();
ds = obj.get_orderdetail(order_id);
ReportViewer1.LocalReport.DataSources.Clear();
ReportDataSource reds = new ReportDataSource("DetailDS_get_orderdetail", ds.Tables[0]);
ReportViewer1.LocalReport.DataSources.Add(reds);
ReportViewer1.LocalReport.ReportPath = Server.MapPath(@"Reportlevel1.rdlc");
ReportViewer1.LocalReport.Refresh();
}
}
the code in method get_orderdetail(order_id) is
public DataSet get_orderdetail(string order_id)
{
SqlCommand cmd = new SqlCommand();
DataSet ds = new DataSet();
cmd.Parameters.Add("@order_id", SqlDbType.VarChar, 50);
cmd.Parameters["@order_id"].Value = order_id;
ds = SQLHelper.ExecuteAdapter(cmd, CommandType.StoredProcedure, "dbo.get_orderdetail");
return (ds);
}pls help me.
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Mar 13, 2008
I'm in the process of converting a rather huge VSAM database into a set of SQL tables.
I am using the same data names from the mainframe (like XDB-NAME to RDB-NAME).
I load the files using Import Export Data and it makes the tables with such column names as col001, col002, col003, etc... and always sets the data types to varchr(255).
And I have to cut and paste the data names from the manframe side to the server side (and the data types to.)
So, is there an easier way to do this? Or am I doomed to cut-n-paste my days away...
Thanks for any help.
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Apr 28, 2004
I am trying to modify data in a tble using the Stored Procedure below. It doesnt work properly. I seem to only be getting one character. I think it has something to do with me using "nchar" with the variables. The value I am changing is actually a string.
Alter Procedure usp_UpdateJobName
@JobNameOld nchar, @JobNameNew nchar
As
UPDATE
JobName
SET
JobName=@JobNameNew
FROM
tblRMADATA
WHERE
tblRMADATA.JobName=@JobNameOld
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Nov 24, 2005
Hi Guys,
I am new to sql server 2000, and need a little help.
I have a table called CMRC_Products with various columns, there is one column called Product Images that has the name of every image in my catalog over 4000, I want to add to each row in that particular column .jpg without loosing what is already in there
I have tried:
UPDATE CMRC_Products
SET ProductImage = ProductImage&' .jpg'
But I get an error,
any help would be much appreciated, cheers
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Mar 28, 2006
Hi,
I was asking how can I make updating and deleting for data through database views in Microsoft SQL Server 2005
Best Regards,
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Jun 24, 2015
I have a project where I need the ability to update data in a SQL table (SQL 2008) from a tool like Access or Excel. My SQL table has 3 records: Employee number, Employee Name, and a yes / no value (1 or 0). I want to be able to display the table data (in Access or Excel), and be able to have the user modify the yes / no value, but not the Employee number or Employee name. How to handle this in SQL. Should I connect Access directly to the SQL table?Â
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Apr 23, 2001
what do i need to change in my SQL database so that someone can access the database to add and modify data using COld Fusion as an interface?
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Aug 31, 2006
Hi all,
Having some fun with an excel import.
I have a excel sheet that has data that needs to be UpSert'ed into 2
different tables. In addition, I need to use a value in the spreadsheet
to determine the PK from a reference data table, for one of the UpSert
oprations.
That is all working now.
The thing I'm struggling with is something I am sure is quite simple -
but I'm not seeing a solution from attempts, googling or BOL.
2 of the columns I receive have either nothing, or X in them. The columns they go into are defined as BIT, NOT NULL.
So, in SQL it would be something relatively simple like:
CASE
When IsAvailable = 'X' then 1
When IsAvailable is null then 1
ELSE 0
end
But I don't know how to do this to data that was in a spreadsheet, and
now is a resultset being handed from a task to another task.
to outline my current solution:
---- table 1 = this all works -------------
Excel Source --> MultiCast (For Table 1)-->Data conversion for
table1-->:Sort for Table1--> Merge Join for table 1 (left Outer
join) as 'left' leg
Table1 Source --> Sort Table1 --> Merge Join for table 1 (left Outer join) as 'right' leg
Merge Join for table 1 --> Conditional Lplit for table1
Conditional Split for table1 (table1 source PK is null) -->Insert Into Table1 Destination
Conditional Split for table1 (table1 source PK is not null) -->Update Table1 OLE DB Command
---- table 2 = this needs to be able to convert X/NULL to BIT -------------
MultiCast (For Table 2)-->Copy Column for Table2 -->Data
Conversion for Table 2-->table3 lookup to get FK-->Sort for
Table2 merge-->Merge Join for table 2 (left outer join) as 'left' leg
Table2 Source --> Sort Table2 --> Merge Join for table 2 (left outer join) as 'right' leg
Merge Join for table 2 --> Conditional split for table 2
Conditional split for table 2(table2 source PK in null) -->insert into table 2
Conditional split for table 2(table2 source PK in not null) -->update table 2 ole db command
-----------------------------------------
Now, if I correct the spreadsheet to have 0's and 1's in the two
column, then the process above works. But I cannot (yet) force business
to do that.
If tried to use SQL Command for the excel source, but there is limited
functionality on the command - I cannot do SQL coalese, isnull or case
statements, which would allow me to resolve that data at source.
I've tried to use derived columns to alter the columns. I think that
the REPLACE (IsAvailable, VariableContainingX,VariableContaining1)
might work to change X's to 1, but that doesn't resolve the NULL issue.
I've tried to use a script component to handle the conversion - which
REALLY feels like a bad way to do this - the .Net script is wrote was:
-------------.net script code-------------
Imports System
Imports System.Data
Imports System.Math
Imports Microsoft.SqlServer.Dts.Pipeline.Wrapper
Imports Microsoft.SqlServer.Dts.Runtime.Wrapper
Imports Microsoft.SqlServer.Dts
Public Class ScriptMain
Inherits UserComponent
Public Overrides Sub Input0_ProcessInputRow(ByVal Row As Input0Buffer)
If Not (Row.EndOfRowset) Then
If
(Row.IsDotComVanEnabled_IsNull) Or (Row.IsDotComVanEnabled.Equals("X"))
Then
Row.IsDotComVanEnabled = "1"
End If
If
(Row.IsStoreCollectionEnabled_IsNull) Or
(Row.IsStoreCollectionEnabled.Contains("X")) Then
Row.IsStoreCollectionEnabled = "1"
End If
Row.NextRow()
End If
End Sub
End Class
------------------------------------------
I also tried it like this:
----------------1st draft .Net script code--------
Imports System
Imports System.Data
Imports System.Math
Imports Microsoft.SqlServer.Dts.Pipeline.Wrapper
Imports Microsoft.SqlServer.Dts.Runtime.Wrapper
Imports Microsoft.SqlServer.Dts
Public Class ScriptMain
Inherits UserComponent
Public Overrides Sub Input0_ProcessInputRow(ByVal Row As Input0Buffer)
If
(Row.IsDotComVanEnabled_IsNull) Or (Row.IsDotComVanEnabled.Equals("X"))
Then
Row.IsDotComVanEnabled = "1"
End If
If
(Row.IsStoreCollectionEnabled_IsNull) Or
(Row.IsStoreCollectionEnabled.Contains("X")) Then
Row.IsStoreCollectionEnabled = "1"
End If
End Sub
End Class
-------------------------------------------------
Those both threw the following error;
-------------error information-----------------
Script Component has encountered an exception in user code:
PROJECT NAME: ScriptComponent_a333140d269b413bb1bddef390da7e16
Object reference not set to an instance of an object.
at ScriptComponent_a333140d269b413bb1bddef390da7e16.ScriptMain.Input0_ProcessInputRow(Input0Buffer Row)
at ScriptComponent_a333140d269b413bb1bddef390da7e16.UserComponent.Input0_ProcessInput(Input0Buffer Buffer)
at
xScriptComponent_a333140d269b413bb1bddef390da7e16.UserComponent.ProcessInput(Int32
InputID, PipelineBuffer Buffer)
at Microsoft.SqlServer.Dts.Pipeline.ScriptComponentHost.ProcessInput(Int32 inputID, PipelineBuffer buffer)
-----------------------------------------------
Any ideas?
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Oct 29, 2015
We have enabled Change Data Capture for auditing our table changes in SQL Server 2008. There is a request to NULL out a few columns (for all rows) in a couple CDC tables, due to compliance with a certification. Is there a compelling reason not to modify these tables and to leave the audit trail as-is?
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Mar 11, 2008
In my SSIS package, I have a data flow task
I am loading a CSV file into a SQL table (OLE DB destination)
I have a couple of CSV files to be loaded
Instead of creating a separate task for each file , can I combine them together into a single task
I was thinking about using a ForEach container
This approach works if the number of columns in all the CSV files is same
But in my case it is not
So what I want is a script task that dynamically modifies the mappings
Can I do this?
I was browsing the net and I found certain code which uses IDTSExternalMetadataColumn90, MapOutputColumn etc.
But the code was creating a new package for each mapping
I couldn't understand the code
So can you please help me with this?
My script task should modify the mappings in my data flow task
For e.g.
If I have 3 columns in my CSV and 3 columns in DB, they should be mapped in the same order
P.S. I do not want to use configurations
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Apr 15, 2004
Hi there,
Completely new to the world of databases. I'm a designer who works primarily in Flash. In any case, I'm trying to manage an application that uses MS SQL and learn about the wonderful world of databases.
Ok, I modified a table (e.g. I added a column called "Rate") that had associated views (created by another developer). Noticed that my application went a little wonky as some of my variables within my app took on the value of the data in the "Rate" column. I checked one of the views and noticed that a column within the view (e.g. TutorID) was assuming the values in the "Rate" column. Note: The column TutorID had been blank before the change to the table. I'm completely lost as to why this is happening. Do I need to rebuild the view? Can I just reset the original view?
Thanks.
Oh yeah, I'm using SQL4X Manager J from Mac Guru (if that helps).
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Feb 2, 2008
,
Hi
In this code how can I create a new data source and new data source view and model and structure that it run dynamic.
In this code I have a lot of errors, that they are about server and database don€™t have in current code,
In this code, first I should definition server or no?
Database dbNew = new Database (databaseName,
Utils.GetSyntacticallyValidID(databaseName, typeof(Database)));
srv.Databases.Add(dbNew);
dbNew.Update(true);
***********************************************************
How can I create data source and data source view and model and structure?
Please say code of that, and guide me.
databasename and srv is unknown.
Do I add other reference with analysis services?
Please explain about these codes:
************************************************************************
1)
RelationalDataSource dsNew = new RelationalDataSource(
datasourceName,
Utils.GetSyntacticallyValidID(
datasourceName,
typeof(RelationalDataSource)));
db.DataSources.Add(dsNew);
dsNew.ConnectionString = connectionString;
dsNew.Update();
2)
RelationalDataSourceView rdsv;
rdsv = db.DataSourceViews.Add(
datasourceviewName,
Utils.GetSyntacticallyValidID(
datasourceviewName,
typeof(RelationalDataSourceView)));
rdsv.DataSourceID = ds.ID
***************************************************************
3)
OleDbConnection cn = new OleDbConnection(ds.ConnectionString);
OleDbCommand cmd = new OleDbCommand(
"SELECT * FROM [" + tableName + "] WHERE 0=1", cn);
OleDbDataAdapter ad = new OleDbDataAdapter(cmd);
DataSet dss = new DataSet();
ad.FillSchema(dss, SchemaType.Source);
*************************************************************
4)
// Make sure we have the name we thought
dss.Tables[0].TableName = tableName;
// Clone here - the original DataTable already belongs to a DataSet
rdsv.Schema.Tables.Add(dss.Tables[tableName].Clone());
rdsv.Update();
5)
MiningStructure ms = db.MiningStructures.Add(miningstructureName, Utils.GetSyntacticallyValidID(miningstructureName,
typeof(MiningStructure)));
ms.Source = new DataSourceViewBinding(dsv.ID);
ms.CaseTableName = "Customer";
Add columns:
ScalarMiningStructureColumn smsc;
// From table "Customer" we will add a couple of columns
// CustomerID - key
smsc = new ScalarMiningStructureColumn("Customer ID",
Utils.GetSyntacticallyValidID("Customer ID", typeof(ScalarMiningStructureColumn)));
smsc.IsKey = true;
smsc.Content = "Key";
smsc.KeyColumns.Add("Customer", "customer_id", OleDbType.Integer);
ms.Columns.Add(smsc);
*******************************************
6)
MiningModel mm = ms.MiningModels.Add(miningmodelName,
Utils.GetSyntacticallyValidID(miningmodelName,
typeof(MiningModel)));
mm.Algorithm = "Microsoft_Decision_Trees";
mm.Parameters.Add("COMPLEXITY_PENALTY", 0.3);
MiningModelColumn mc = new MiningModelColumn("Customer ID",
Utils.GetSyntacticallyValidID("CustomerID",
typeof(MiningModelColumn)));
mc.SourceColumnID = ms.Columns["Customer ID"].ID;
mc.Usage = "Key";
mm.Columns.Add(mc);
mm.Update();
Please exactly say, whatever I want
Thanks a lot for your answer
Please don€™t move this question because I don€™t know where I should write this.
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Mar 2, 2007
I have set up a new connection as a connection from data source, but I cannot see how to use this connection to create my Data Flow Source. I have tried using an OLE DB connection, but this is painfully slow! The process of loading 10,000 rows takes 14 - 15 minutes. The same process in Access using SQL on a linked table via DSN takes 45 seconds.
Have I missed something in my set up of the OLE DB source / connection? Will a DSN source be faster?
Thanks in advance
ADG
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