In this tip we will look at two different ways of creating an HDInsight Cluster: Creating an HDInsight Cluster through Azure Management Portal, and creating an HDInsight Cluster through Windows Azure PowerShell.
2015-01-01
6,840 reads
In this tip Tim Smith looks at how to set up a system that allows automatic notification if a process doesn't import new data into SQL Server.
2014-12-31
6,405 reads
So you're keen to take the first steps to the continuous integration of your database. You have to start by getting your database into source control. You can then begin to automate your build processes in order to generate and test a database. By doing this regularly, you'll be much better prepared for the deployment process because you'll have solved integration issues when they happen, and facilitated the broader testing process.
2014-12-30
9,861 reads
In order to analyze the data in a line chart better, we want to add trendlines to the graph, such as a weighted average. Here's how to add a "calculated series" to a line chart easily in SQL Server Reporting Services.
2014-12-29
7,422 reads
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
By Steve Jones
AI is a big deal in 2026, and at Redgate, we’re experimenting with how...
By Steve Jones
Another of our values: The facing page has this quote: “We admire people who...
By Ed Elliott
Running tSQLt unit tests is great from Visual Studio but my development workflow...
Comments posted to this topic are about the item No Defaults Passwords Ever
Hi, We have low latency high volume system. I have a table having 3...
Comments posted to this topic are about the item The Long Name
I run this code to create a table:
When I check the length, I get these results:
A table name is limited to 128 characters. How does this work?