One more SQLSaturday done I love SQLSaturdays, it’s always a fun experience for me. Uhm, ok, maybe let me qualify that. It’s always a nervewracking AND fun experience for me – when I’m speaking. I just always want it to be worth people’s time to attend my presentations.

I think there was a good crowd at my session, and I’m quite happy to see they seemed to have fun too (I hope!) …
Btw I have a couple more presentations in the upcoming SQLSaturday#114 – on PowerShell, and on ETL Basics.

Here’s a couple mementos for me to remember this day by. Thank you to everyone who attended, and spent their Saturdays with us …

These are the files. If you have any questions about them, please feel free to contact me.
SQLSaturday108 Redmond – SSRS Beyond the Basics Presentation – Donabel Santos
SQLSaturday108 – Donabel Santos – RDL files

SQLSaturday108 – Donabel Santos – PowerShell Files
SQLSaturday108 – Donabel Santos – jquery point generator

When you’re working with PowerShell and SSRS, you may occasionally come across a script that works once, then just mysteriously decides not to work anymore on a second or third invocation. Or it may just not work period, even though you think the syntax is short and straightforward, and you know you’re not misspelling any syntax.

Please note I am running this on the PowerShell ISE, and PowerGUI – and tried on both PowerShell V2 and V3.
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I wanted (needed!) to write a script to automatically generate a number of reports based on sets of parameters. Most of the scripting I’ve done before are for straight up parameters that I can pass using SMO or through the URL string.

This time, I had a cascading query-based parameter, ie one parameter that is filled out based on another parameter. I was doing my usual drill with PowerShell when I got the following infamous error:

“This report requires a default or user-defined value for the report parameter. To run or subscribe to this report, you must provide a parameter value.”

Which is weird because I did provide all the required parameters. A quick search leads me to a few blog posts, most of which mentioned that it’s because of my query based parameter. Most also suggest the resolution is to convert my parameter which has query-based parameter to be non-query based.

The only problem is I can’t. And I don’t want to. That’s not a resolution. This report is meant to be used both by users for ad hoc purposes, and for massive downloading for month-end reports. Removing the query-based values for a parameter *IS NOT* a resolution. Not for me anyway.

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Here’s a short PowerShell script that :
1. Connects to your report server
2. Loops through a set of parameters stored in an array
3. Saves the PDF version of the report to a local folder, with appropriate names

Here’s a snippet of code to set your SSRS parameters programmatically using PowerShell

  $params = $null;
 
  #set parameters
  #here's a sample usage http://msdn.microsoft.com/en-us/library/microsoft.reporting.winforms.reportparameterinfo(v=vs.80).aspx
  $params = new-object 'Microsoft.Reporting.WinForms.ReportParameter[]' 3
  $params[0] = new-Object Microsoft.Reporting.WinForms.ReportParameter("FISCALYEAR", $fiscalyear, $false);
  $params[1] = new-Object Microsoft.Reporting.WinForms.ReportParameter("MONTHENDDATE", $monthenddate, $false);
  $params[2] = new-Object Microsoft.Reporting.WinForms.ReportParameter("SALESGROUP", $salesgroup, $false);
 
  $rv.ServerReport.SetParameters($params);

Of course this is just a sample, you can definitely extend this by using SMO to automatically pull parameter values, or use values stored in a file (among a million other things you can do with ubercool PowerShell)

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Here’s a short PowerShell script that :
1. Connects to your report server
2. Creates the same folder structure you have in your Report Server
3. Download all the SSRS Report Definition (RDL) files into their respective folders

In addition to backing up your Source Project, your ReportServer database, or good old RSScripter (see http://sqlserver-indo.org/blogs/mca/archive/2009/03/08/extract-and-transfer-rdl-files-from-ssrs.aspx) this is just another way you can “backup” or archive your reports.
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Just a short tidbit on how to list your ReportServer Items using PowerShell

#note this script is tested on PowerShell v2 and SSRS 2008 R2
 
$ReportServerUri = "http://yourserver/ReportServer/ReportService2005.asmx";
$Proxy = New-WebServiceProxy -Uri $ReportServerUri -Namespace SSRS.ReportingService2005 -UseDefaultCredential ;
 
#check out all members of $Proxy
#$Proxy | Get-Member
#http://msdn.microsoft.com/en-us/library/aa225878(v=SQL.80).aspx
 
$items = $Proxy.ListChildren("/", $true);
 
$items | select Type, Path, ID, Name | sort-object Type, Name

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Thank you to all the troopers who attended my really-early-morning-cold-and-snowy session at SQLSaturday#65 in Vancouver, BC. It was such a great event; thanks to all volunteers, sponsors, speakers and organizers (kudos to Scott Stauffer (blog | twitter) .. Thanks to Todd McDermid (blog | twitter) too for helping me give out swags during my session, and thanks for the great powerpoint slide decks which I’ve used in 2 SQLSaturdays now!

As promised, here are the SQLSaturday#65 presentation materials for SQL Server 2008/2008 R2 Reporting Services from the Ground Up

Brent Ozar (blog | twitter) has a few pictures of the event

Sample Reports (pdfs)

Report with different visualization components (data bar, sparkline, indicator, gauge, chart)

Report with drilldown, barcode, gauge

Report using map (from ESRI shapefile for Canada) and Bing Maps layer

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Your report is only as good as your requirements.

When I first worked with reports and reporting services, I was excited and giddy. Beside my plain old text and T-SQL, I now get to work with some shapes and colors! And look ma, no hands, err, it’s drag and drop!

But the fascination with colors, drilldowns, drillthroughs, what-have-yous fade away as quickly as that drag and drop. You realize fast that – although managers typically like the pie charts, the drill downs, the colored legends – if any number, or any minor thing for that matter, is not “right”, the whole report is not right, and all your work really goes down the drain.

Sometimes, it’s not because the report is “completely wrong”.
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