Pass variable value to DataReader Source

Dear All,

I have created a DTS Package in Integration Services 2005.

Within the DTS Package declared a variable named xxx and passed a value 1234.

In the control flow i dropped a Data flow task and in the Property Expression Editor of DataFlow Task i defined

Property = [DataReader Source].[sqlCommand]

Expression = Variable name.

Now in the DataFlow Task Canvas dropped DataReaderSource.

How can i pass variable value to the SQLCommand ="Select * from table where name = Variable value.

regards

Sufian

This post explains how to do that...

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=2009522&SiteID=1

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sorry , i have a diffrent problem.

I need to know how can i pass the variable value to the query supplied in the SQLCommand custom properties in datareader source on execution.

the variable datatype is Int32 and i am getting error when i set the expression property in the expression builder (Cannot convert System.Int32 to System.String).

Regards

Sufian

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mohd sufian wrote:

the variable datatype is Int32 and i am getting error when i set the expression property in the expression builder (Cannot convert System.Int32 to System.String).

You can't concatenate a string with an integer. You'll have to cast the integer as a string and THEN concatenate.

The cast operator is:

(DT_STR, <length>, <code_page>) variable_value

Code page will probably be 1252.

-Jamie

Pass a variable to a DataReader in a DataFlow task

How can I pass a variable to a DataReader in a DataFlow task?

My SqlCommand for the DataReader is:
SELECT CustName, CustCode FROM Customers WHERE CustCode = '?'

The DataFlow task is nested in a ForEach loop. I confirmed that the variable is changing with each loop by using a ScriptTaks and a message box. However, the DataReader SqlCommand does not seem to be updating.

You need to put the query into a variable, let's say @.myquery.

@.myquery would use an expression to make it dynamic on each iteration. Then you have to assign @.myquery variable to the data reader via expression. For doing that, go to the control flow; select the data flow task go to properties; select expression and add an expression to SQLCommand proepty. The proeprty should be just: @.myquery.

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This article by Jamie Thomson gave me more detail to accomplish what Rafael described:

http://blogs.conchango.com/jamiethomson/archive/2005/12/09/SSIS_3A00_-Using-dynamic-SQL-in-an-OLE-DB-Source-component.aspx

Note: the SQLCommand property of the DataReader gets renamed to [Name of DataReader Source]

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Well,

That article applies for OLE DB source component; for a data reader is slightly different.

Good that it worked for you!