Question

Return Multiple Tables Into A DataSet From A Stored Procedure...?

Asked by: BSantiag

I am trying to automate the creation of a Database and all it's parts for my application, through code. In one instance I need to examine information returned from the SP_HELPLOGINS stored procedure.  In Query Analyzer, I get two tables returned as it should be.  When I run the same code in VB and fill a DataSet using a DataAdapter, it only returns the 1st of the two tables.  I need access to the second table.  I could have sworn I had this working before in a previous application (and yes I am reusing the same class)...

When I had written this class initially years ago, we were using SQL 2000.  This new application I am creating uses SQL 2005.  Is there a different behavior between Servers? Is there something I need to add to my code to get my DataSet to populate BOTH tables into it from SQL 2005?

Thank you in advance for any help you can offer...

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Asked On
2009-04-07 at 11:14:53ID24303053
Tags

Multiple Tables

,

DataSet

,

Stored Procedure

,

SP_HELPLOGINS

Topics

Microsoft Visual Basic.Net

,

Programming for ASP.NET

,

SQL Server 2005

Participating Experts
2
Points
0
Comments
6

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Answers

 

by: GiftsonDJohnPosted on 2009-04-07 at 11:45:14ID: 24090512

Hi,

If your stored procedure returns 2 tables from sql server then definitely the DataSet will have both the tables in it after getting filled.

To access the second table you have to use

GridView1.DataSource=DataSet1.Tables[1];
GridView1.DataBind();

You can verify this by placing a breakpoint in the code and view the dataset in DataSet visualizer.

 

by: y0usufPosted on 2009-04-07 at 11:45:49ID: 24090519

you need to index the tables collection in dataset.
dataset.tables(0) for the first table
dataset.tables(1) for second table

 

by: BSantiagPosted on 2009-04-07 at 11:49:45ID: 24090556

Fir let me thank you for answering my question.

Unfortunately my problem has nothing to do with Indexing (I wish it were that simple)...  The DataSet itself once filled, only contains one(1) table in it, not two(2).  

 

by: y0usufPosted on 2009-04-07 at 11:55:48ID: 24090623

I do this all the time. And when I fill my dataset I get two tables in it if the SQL query returns two tables. I don't think you need to do anything different for SQL server 2005. I am using SQL server 2005 as my database. Are you sure your query is running two tables. This is kinda strange to me.

    sqlConn.Open()
            cmd = New SqlCommand(SQLString, sqlConn)
            cmd.CommandTimeout = 0
            da.SelectCommand = cmd
            da.Fill(ds)

                                              
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by: GiftsonDJohnPosted on 2009-04-07 at 12:33:11ID: 24091005

Could you please tell me how you came to know that only one table gets filled in DataSet? Did you try debugging the code and view the dataset with dataset visualizer?

 

by: BSantiagPosted on 2009-04-07 at 12:40:36ID: 24091082

Yes, through the debugger I checked through the visualizer, and also through manually sifting through the DataSet properties using the watch window.  This is why I say I know it's returning only one(1) table.  

I am also tracking down another avenue...  I am using a Derived DataSet & DataTable in my application in order to encapsulate and enhance the interactions between DataSet to DataTable to DataRow. The problem might be in the Derived Class itself...  I am thinking the way the Derived Class was created wasn't 100% correct and left some gaps in how data linked between DataSet -> DataTable -> DataRow...  Unfortunately, until I gain some more information on how to "properly" inherit a DataTable and all it's constituent parts, I cannot say for sure whether this is my error or not.

20120131-EE-VQP-002

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