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Using Parameters with the DataReader odbc SqlCommand

Posted on 2009-07-09
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Last Modified: 2013-11-10
In my DataReader object of my SSIS package, I need to be able to pass in a date and time to the query. The correct date and time values are stored in a variable that I populate in a prior "Execute SQL Task" component in my Control Flow. I need to access the value in those variables to execute my dataReader.

How do you do this?
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Question by:_Wade_
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by:jbyers79
ID: 24817979
if you want to use parameters, don't use the DataReader component.  Can you use the OLEDB data source component?
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by:rob_farley
ID: 24820082
It's definitely easier to do this using an OLEDB Source, and I find that I only ever use DataReader if I have a client who insists on using ADO.Net in between. The DataReader component is just far too restricted in its use.

Rob
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by:PedroCGD
ID: 24823523
You can use parameters using OLEDB Source or Data Reader Source.
OLEDB Source is more easy... with Data Reader you need to use expression are is not soo complicated.
Do you want more details?

Helped?
Regards,
Pedro
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Author Comment

by:_Wade_
ID: 24825785
Hi everyone. thanks for your responses. the reason why I'm using a DataReader is because I'm having to use ODBC. I'm accessing an AS400 datasource.

I'm assuming there's no other component besides DataReader for this.

I figured out how to use expressions yesterday for the datareader. SSIS is just so wonderful! I discovered that in order to do this "workaround" I needed to "fake" the Visual Studio designer out by giving the data reader a bogus sql command for it to populate it's metadata with column information. I post I found assured me that it it would work at runtime....

But, when i run my SSIS package it won't begin. It tells me there's a problem with the Datareader SQL command before it even gets to that point in the execution (it won't even execute the first step in the control flow).  It's pretty nonspecific. If it wouldn't let me cut and past the error (which was displayed in a dialog box instead of somewhere that I could access the actual text) I would show everyone the exact message. It had a few lines which made no sense, or at least told me nothing meaningful about what was wrong with my sql statement. It can't be a problem with parsing, since it didn't get far enough to parse against the actual datasource.

SSIS is giving me such a headache my boss told me to redesign my process with a VB.net console job. I'm doing that right now. It might prove easier. I've got less than a year in development experience so it's hard for me to tell these things in advance. :)

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by:PedroCGD
ID: 24825808
do you want an example?
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by:_Wade_
ID: 24825857
Sure!
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by:rob_farley
ID: 24828336
You should be able to use an OLEDB source, using an OLEDB for ODBC provider.

... and it's a lot more forgiving.

Rob
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PedroCGD earned 1000 total points
ID: 24850140
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by:_Wade_
ID: 24850250
That was a great example. Thanks Pedro!
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by:PedroCGD
ID: 24850270
It's a pleasure!!
Regards,
Pedro
www.pedrocgd.blogspot.com
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