There is little doubt that static code analysis can contribute to code quality and deliverability. As an aid to a developer, it seems increasingly essential, but can it ever deliver reliable metrics of code-quality? One shudders at the potential misuse of quality metrics in the wrong hands. My hope is that it remains just an aid to human judgement; and creativity.
In this article, we’ll be focusing on the different ways you can build with a Cloud Service, and what exactly happens in terms of virtual machines when you deploy your application.
Recursive CTEs can be confusing and scary, so examining some non-standard examples may cast light upon these shadowy demons.
This Friday Steve Jones has a poll about your summertime activities. What have you done away from work that was memorable?
During a transaction, data is written to the log cache so that it’s ready to be written to the log file on commit, or can be rolled back if necessary. When the log cache is being flushed to disk, the SQL Server session will wait on the WriteLog wait type. If this happens all the time, it may suggest disk bottlenecks where the transaction log is stored.
Checking program code into source control is a daily ritual for most developers, but versioning database code is less well-understood. Grant Fritchey argues that getting your databases under source control is not only vital for the stability of development and deployment, but it will make your life easier when something does go wrong.
SQL Server 2012 introduced columnstore indexes, which can immensely improve the performance of OLAP queries. How were they updated and improved in SQL Server 2014?
Many DBAs back up their user databases, but not their system databases. Whatever the reason for the lack of a backup, John Grover explains how to save yourself (mostly) should you ever find yourself with no viable master database and no good backup.
Red Gate’s running a half-day training workshop at their UK head office in Cambridge on Aug 8. It’ll show you how to link your database source control repository to your build system as the starting point for continuous integration.
By Steve Jones
I type fairly well. Well, I type fast, but I do wear out a...
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By ReviewMyDB
Index maintenance has always meant nightly jobs and a window you have to defend....
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I have this data in the dbo.Commission table in a SQL Server 2022 database.
salesperson commission Brian 12 Brian 16 Andy 7 Andy 14 Andy 21 Steve 20 Steve NULLAll the data is a varchar, and I decide to run this query to get the totals for each salesperson.
SELECT SalesPerson
, AVG(TRY_PARSE(Commission AS int)) AS TotalCommission
FROM commission
GROUP BY SalesPerson
GO
What average commission is calculated for Steve? See possible answers