Long running SQL query in ASP.Net

Greetings,
I have to run a parametirzed sproc on SQL that can take 5-10 minutes to
complete. The query returns a few megs of data that I want to let the
clients download as a CSV. Any ideas on a quick and dirty way to do this
without invoiking SSIS?
ThanksOn Jun 12, 2:44 am, "Shkedy" <shk...@.newsgroups.nospam> wrote:
> Greetings,
> I have to run a parametirzed sproc on SQL that can take 5-10 minutes to
> complete. The query returns a few megs of data that I want to let the
> clients download as a CSV. Any ideas on a quick and dirty way to do this
> without invoiking SSIS?
> Thanks
You can use bcp but this requires xp_cmdshell nned to be enabled ,if
you call from SQL Server|||Hi Shkedy,
I recommend that you try using bcp command and Import/Export Data Wizard.
Either of the two methods is very convenient, but Import/Export Data Wizard
may be more convenient for you.
For bcp utility, you can refer to:
bcp Utility
http://msdn2.microsoft.com/en-us/library/ms162802(SQL.90).aspx
For Import/Export Data Wizard, please refer to:
How to: Start the SQL Server Import and Export Wizard
http://technet.microsoft.com/en-us/library/ms140052(SQL.90).aspx
Hope this helps. If you have any other questions or concerns, please feel
free to let me know.
Best regards,
Charles Wang
Microsoft Online Community Support
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==============|||Thanks for the prompt and informative response.
I ended up using C# to implement this by launching a new thread that
traverses a reader and writes a text file. I added some more bells and
whistles that I omitted from here but this is the gist of the code:
private void btnSubmit_Click(object sender, System.EventArgs e)
{
if (Page.IsValid)
{
File.Delete(Server.MapPath("~") + "\\reports\\" + CreateFileName());
System.Threading.ThreadStart launcher = new System.Threading.ThreadStart(
CreateCSVReport);
System.Threading.Thread thread = new System.Threading.Thread(launcher);
thread.Start();
Page.RegisterStartupScript("popup", String.Format("<script
language='javascript'>popitup('ReportStatus.aspx?f={0}')</script>'",Cre
ateFileName()));
}
}
private void CreateCSVReport()
{
SqlDataReader rdr;
SqlConnection cnn = new
SqlConnection(System.Configuration.ConfigurationSettings.AppSettings.Get("Co
nnectionString"));
SqlCommand cmd = new SqlCommand("sp_mysproc");
cmd.Connection = cnn;
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add("@.param1", SomeValue);
cmd.Parameters.Add("@.param2", SomeValue);
cmd.Connection.Open();
cmd.CommandTimeout = 900;
string tempFileName = Server.MapPath("~") + "\\reports\\temp\\" +
Guid.NewGuid().ToString() + ".csv";
System.IO.StreamWriter wrtr = (File.CreateText(tempFileName));
rdr = cmd.ExecuteReader(CommandBehavior.CloseConnection);
int rowCount = 0;
for (int i =0; i < rdr.FieldCount; i++)
{
wrtr.Write("{0}",rdr.GetName(i));
if (i < rdr.FieldCount -1 )
wrtr.Write(",");
}
wrtr.WriteLine();
while (rdr.Read())
{
for (int i =0; i < rdr.FieldCount; i++)
{
wrtr.Write("{0}",rdr[i]);
if (i < rdr.FieldCount -1 )
wrtr.Write(",");
}
rowCount++;
wrtr.WriteLine();
if (rowCount % 1000 == 0)
wrtr.Flush();
}
wrtr.Flush();
rdr.Close();
wrtr.Close();
File.Move(tempFileName, Server.MapPath("~") + "\\reports\\" +
CreateFileName());
}
"Charles Wang[MSFT]" <changliw@.online.microsoft.com> wrote in message
news:XKigCINrHHA.1032@.TK2MSFTNGHUB02.phx.gbl...
> Hi Shkedy,
> I recommend that you try using bcp command and Import/Export Data Wizard.
> Either of the two methods is very convenient, but Import/Export Data
> Wizard
> may be more convenient for you.
> For bcp utility, you can refer to:
> bcp Utility
> http://msdn2.microsoft.com/en-us/library/ms162802(SQL.90).aspx
> For Import/Export Data Wizard, please refer to:
> How to: Start the SQL Server Import and Export Wizard
> http://technet.microsoft.com/en-us/library/ms140052(SQL.90).aspx
> Hope this helps. If you have any other questions or concerns, please feel
> free to let me know.
> Best regards,
> Charles Wang
> Microsoft Online Community Support
> ========================================
=============
> Get notification to my posts through email? Please refer to:
> [url]http://msdn.microsoft.com/subscriptions/managednewsgroups/default.aspx#notif[/ur
l]
> ications
> If you are using Outlook Express, please make sure you clear the check box
> "Tools/Options/Read: Get 300 headers at a time" to see your reply
> promptly.
>
> Note: The MSDN Managed Newsgroup support offering is for non-urgent issues
> where an initial response from the community or a Microsoft Support
> Engineer within 1 business day is acceptable. Please note that each follow
> up response may take approximately 2 business days as the support
> professional working with you may need further investigation to reach the
> most efficient resolution. The offering is not appropriate for situations
> that require urgent, real-time or phone-based interactions or complex
> project analysis and dump analysis issues. Issues of this nature are best
> handled working with a dedicated Microsoft Support Engineer by contacting
> Microsoft Customer Support Services (CSS) at
> http://msdn.microsoft.com/subscript...t/default.aspx.
> ========================================
==============
> When responding to posts, please "Reply to Group" via
> your newsreader so that others may learn and benefit
> from this issue.
> ========================================
==============
> This posting is provided "AS IS" with no warranties, and confers no
> rights.
> ========================================
==============
>
>|||Hi Shkedy,
Thank you for your reply and the detailed additional feedback on how you
were successful in resolving this issue. This information has been added to
Microsoft's database. Your solution will benefit many other users, and we
really value having you as a Microsoft customer.
If you have any other questions or concerns, please do not hesitate to
contact us. It is always our pleasure to be of assistance.
Have a nice day!
Best regards,
Charles Wang
Microsoft Online Community Support
========================================
=============
Get notification to my posts through email? Please refer to:
http://msdn.microsoft.com/subscript...ault.aspx#notif
ications
If you are using Outlook Express, please make sure you clear the check box
"Tools/Options/Read: Get 300 headers at a time" to see your reply promptly.
Note: The MSDN Managed Newsgroup support offering is for non-urgent issues
where an initial response from the community or a Microsoft Support
Engineer within 1 business day is acceptable. Please note that each follow
up response may take approximately 2 business days as the support
professional working with you may need further investigation to reach the
most efficient resolution. The offering is not appropriate for situations
that require urgent, real-time or phone-based interactions or complex
project analysis and dump analysis issues. Issues of this nature are best
handled working with a dedicated Microsoft Support Engineer by contacting
Microsoft Customer Support Services (CSS) at
http://msdn.microsoft.com/subscript...t/default.aspx.
========================================
==============
When responding to posts, please "Reply to Group" via
your newsreader so that others may learn and benefit
from this issue.
========================================
==============
This posting is provided "AS IS" with no warranties, and confers no rights.
========================================
==============