Articles

External Article

Getting Started with HDInsight - Part 2 - Introduction to Azure HDInsight PowerShell

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

SQLServerCentral Article

15 Quick Short Interview Questions Useful When Hiring SQL Developers

Here is a useful exam that you can administer in either 10 or 15 minutes, either oral or written, when you interview for hiring permanent or contract workers for jobs in SQL Server development or support. (This is not a test for SQL Data Base Administrators.)

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2014-12-25 (first published: )

15,681 reads

External Article

SQL Server Data Aggregation for Data with Different Sampling Rates

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

External Article

Practical PowerShell Unit-Testing: Mock Objects

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

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Question of the Day

How Long is a Long I/O?

In SQL Server 2025, a long I/O is recorded in the error log with message 833. How long much an I/O request be outstanding before this message is written to the log?

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