PowerShell is a very popular and powerful feature in the Microsoft stack. It is extensively used for development, deployment and administration across various ecosystems like SQL Server, SharePoint, Azure Cloud and others. PowerShell cmdlets are available for HDInsight as well and in this tip we will take a look at fundamental aspects of Microsoft Azure PowerShell for HDInsight.
2014-12-26
7,675 reads
It's Christmas, so here are some Christmassy-themed songs to guess.
2014-12-25
6,956 reads
In the emerging "Internet of Things", there are multitudes of devices collecting data at differing sampling rates. Integrating this data so the data has a common granularity in time is important to not only allow for accurate analysis and mining, but it will also aid in reducing the amount of data to be stored and processed.
In this tip, we will demonstrate how to use the T-SQL AVG function and GROUP BY clause to transform data collected from two devices sampling at 100Hz and 40Hz to one row per second.
2014-12-24
7,922 reads
Pester allows you to automate the testing of PowerShell scripts. It can test the output of a function as you develop it by validating simple data (scalars) and arrays, and allows you to focus on the one function you want to test by using 'mocking' to fake all the other functions and Cmdlets.
2014-12-23
7,027 reads
When a hospital’s mission-critical database fails at Christmas, disaster for the hospital – and its hapless DBA – seems certain. With less than an hour to spare before catastrophe, can the DBA Team save the day? This is a fictionalized true story.
2014-12-23 (first published: 2014-12-04)
17,000 reads
The term UPSERT has been coined to refer to an operation that inserts rows into a table if they don’t exist, otherwise they are updated. To perform the UPSERT operation Microsoft introduced the MERGE statement. Not only does the MERGE statement support the UPSERT concept, but it also supports deleting records. Greg Larsen discusses how to use the MERGE statement to UPDATE, INSERT and DELETE records from a target table.
2014-12-22
13,060 reads
This tip looks at some of the questions around attribute relationships in SQL Server Analysis Services, including why you need them, how to create them, and the common data sets involved.
2014-12-19
7,646 reads
Every time you access a relational database to make a query, you have an important decision to make: What is the appropriate isolation level for your query? If you get this wrong, the consequences can be serious. Deadlocks, Dirty reads, Non-repeatable reads, or poor performance. We're in luck, because Robert Sheldon once more answers those questions that are awkward to ask in public.
2014-12-18
12,150 reads
One of the primary advantages of Platform-as-a-Service solutions offered by Microsoft Azure is the ease with which scaling can be implemented. While SQL Database facilitates both vertical and horizontal scaling approaches, scaling it out is considerably more challenging. In this article, we will provide a high-level overview of both vertical and horizontal scaling methods available with Azure SQL Database.
2014-12-17
8,467 reads
Kathi Kellenberger demonstrates how to start adding visual flair to your SSRS reports, using its impressive set of visual controls, ranging from basic charts to gauges, indicators, sparklines, and maps.
2014-12-16
7,115 reads
By Steve Jones
Software is hard. While I love our Lucid Gravity, I realize that they are...
By James Serra
Making Data AI-Ready, Part 2 (This is the second article in a three-part series...
By Steve Jones
Can you use your GPUs when running a local model under Ollama? You can,...
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