I’ve long been a fan of sp_who2 for identifying blocks on SQL Server, but it’s a bit clunky and there’s a lot of stuff to wade through. Which is why I’ve collated several scripts from around the place and combined them into sp_who3 I’m using a try_cast function which won’t work prior to SQL2012 I believe. Install the stored proc with the code at the bottom. To run it, just type into SSMS: This will return three result sets. The first is filtered version of sp_who2 which will show only those SPIDs which are blocked, as well as the SPIDs which are blocking. The second returns the standard sp_who2 list, The third returns the exact SQL for each SPID, as well as detailed performance and blocking stats, c/- a query from msdn.
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SQL Agent – Environment specific workflow
I like to keep my SQL Agent jobs in sync between environments, however not all jobs need to be run in all environments. To handle this, I’ve been using some TSQL to force a failure and end the job at a point. Here’s the overall job Within that, the TSQL for the ‘–Finish here if DEV–‘ step is To control the workflow, I’m setting the on success and on failure as follows:
Controlling Chart axis in SSRS
Had a tricky one today where the business wanted more axes to show on an SSRS report. Seems fair enough, cause as this example shows, a single line is pretty bland. After a bit of reading, I found a few clues over here. The concept is to convert a number to scientific notation, then use the first digit as a multiplier against 10 to the power of the exponent. This generates a nice round number, which is also divisible by 5. Here’s the code, I just pass the range of values on the chart (the calc is also used for the max of the chart), and the function returns an appropriate interval Here’s how my chart looks wtih the interval calcs: But… well that doesn’t look great either, because 600, 1200, 1800… and the maximum isn’t shown. So then the code ‘evolved’ again… End result:
Subreport in a Sub Folder – working in Visual Studio and SSRS
Subreports provide a great way to re-use SSRS content, however the implementation is a bit clumsy: SSRS 2016 doesn’t let you effectively hide reports (only folders) Visual Studio doesn’t let you have folders for SSRS projects (despite an 8 year old connect request with 290 up votes) Folders sort of work in Report Builder, but there’s no version control My design is for a user facing report with embedded parts that the user can’t see. This approach works in both Visual Studio and SSRS, and minimises maintenance. In SSDT, link to the full path of the Subreport This will work in SSRS once the Report is published, and the Subreport is published to ‘/Sales/ReportParts/’, however, we’ve broken the master report in Visual Studio Note the path referred to in the error – it’s ‘your project folder’ + ‘\bin\Debug’ + ‘your subreport path’ + ‘your subreport’. The challenge here is Visual Studio creates this content in \bin\Debug, and looks for it in \bin\Debug\Sales\ReportParts. We could create this path and copy content into it, but this would be a maintenance headache as we have to copy the subreport, data sources, and any shared data sets, and need to re-copy it when any of these change. Enter the Symbolic Link To get around this I’ve created a symbolic link to trick Visual Studio into thinking the content is at this path, when it’s really just a pointer to the live content in ‘\bin\Debug’. Here’s a guide on creating symbolic links in Windows, and here are the steps I ran in a command prompt (as adminsitrator) to create a link to ‘\Sales\ReportParts’:
Hiding SSRS folders from users
I’ve been looking into a way to allow users access to content without being able to see content in the SSRS 2016 Portal. This provides a way for developers to re-use shared objects such as Shared Data Sources and Shared Data Sets without confusing the user. The built in functionality to ‘Hide in Tile View’ is not suitable as: the default configuration for all users is to ‘Show hidden items’ there is no known way to overwrite this property for all users the property is overwritten each time you publish A better way to control visibility is via Security, however the built in ‘Browser’ role has too many rights for this need. Part 1 – Create a new SSRS Role Connect to Integration Services through SSMS Once in, expand Security, Roles, then Add Role Add a new role called ‘Reader’, and grant only rights to ‘View Reports’ and ‘View models’ Part 2 – Grant this role to users on folders you want to hide Connect to your SSRS Portal Edit Permissions for the folder that you want to hide Change the Users group to have ‘Reader’ rights rather than ‘Browser’ rights
SQL Server code to pivot Key Value Pairs into fixed Colums
Today’s requirement was to translate 550k rows of product data from a long list of name / value pairs into a wide table with up to 15 name value pairs per product. I tried a few techniques to achieve this, and found SQL Server’s windowing functions to do a pretty good job of building a cross-tab from this flat list.
Seeding an integer sort code into a Data Warehouse from a varchar
I found this a bit of a challenge this morning, and as it’s my first use of windowing functions in SQL Server I thought I’d share. Our requirement was to add a sort code to our dimension tables for various levels. For some reason many of our business keys are varchars, however I really wanted to get sort codes as integers. Here’s the code: This generates three distinct sort keys, one for each level. Quite nifty I reckon. Long term we’ll look to move this stuff into a source system somewhere, but for now, she’s sorted.
Task Factory’s Upsert ‘Go Slow’ button
If you’re using the Upsert component in Task Factory and notice upserts taking 10-20 minutes and would prefer them to take 10-20 seconds, try removing the tick from ‘Enable Identity Insert’.
SSRS Missing Functionality
Just putting this out there cause surely I can’t be the only one missing this… If you install SSRS on SQL Server 2016 Standard Edition, quite a few of the menu items will be missing. Items such as: Mobile Reports KPI Reports Branding The solution.. install SSRS on Enterprise Edition.
Script to split huge text file into chunks with headers
As a powershell newbie I’m pretty happy with this one, even if it relies on calling the split utility from cygwin and a dos copy command to perform… The split.exe is the windows port of the unix split command, I downloaded this as part of cygwin. However I didn’t want to install cygwin on the server so just copied the split.exe file across. This performs pretty well on our VM, it processed 200GB of text files into 64MB chunks in about 2 hours. It’s a one off process to seed the historical invoices into the DWH, so I have need to seek further enhancements.
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