Detecting Database Drift during Flyway Database Development
How to detect database drift prior to running a database migration, so that you can be certain that a database hasn't been subject to any 'uncontrolled' changes that could affect the migration or result in untested changes being deployed to production.
Five Facts about the SQL Server Resource Database
In this article we cover interesting facts about the hidden resource database in SQL Server and how this is used by SQL Server.
A Cloud Database for Statistics
A company decides to move to the cloud and outsource database administration.
Identify Profiles Actually In-use to Make Database Mail Migration Efficient
Introduction According to Microsoft, Database Mail is an enterprise solution for sending e-mail messages from the SQL Server Database Engine. Using Database Mail, your database applications can send e-mail messages to users. The messages can contain query results and can also include files from any resource on your network. This article is going to discuss […]
How to improve DevOps communication clarity
Communication is at the heart of DevOps, but it can be difficult to achieve. Mike Cuppett explains how to improve DevOps communication clarity.
An Introduction to Azure Data Explorer
Introduction Big data consists of very large datasets, which can be structured, unstructured, and semi-structured. Data may be coming from various data sources in real-time or in batches. The traditional tools and technologies we have used in the past are not capable of processing and storing all this data in an efficient way. We need […]
Creating Database Build Artifacts when Running Flyway Migrations
This article provides PowerShell automation scripts for running Flyway database migrations. These scripts use SQL Compare to automatically generate all the required database build artifacts in the version control system, for each Flyway deployment.
Never, Ever, Ever Start T-SQL Comments with Two Dashes
In this article, Brent Ozar explains why you should avoid starting T-SQL comments with two dashes.
Blogs
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Forums
SQL Art, Part 4: Happy 4th of July — A British DBA's Guide to Celebrating a War We Don't Talk About
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Cognitive Coverage
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Question of the Day
Getting the Average
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