DBA in training: SQL Server high availability options
DBAs must make sure data is highly available, and there are many SQL Server high availability options. Pamela Mooney discusses those options in this article.
2021-06-07
DBAs must make sure data is highly available, and there are many SQL Server high availability options. Pamela Mooney discusses those options in this article.
2021-06-07
In this article we discuss deploying SQL Server containers / images using Azure Kubernetes Cluster.
2021-04-01
DBAs are in great demand, but what if you are recruiting a DBA for DevOps? Mike Cuppett explains how to hire and train the right DBA for the job.
2021-03-12
Create a quick application that stores your favorite queries that you can use to quickly connect to any server and return the results.
2021-03-08
In this article of the series, Pamela Mooney explains the architecture of SQL Server under the hood, including some query anti-patterns to avoid.
2021-02-23
Mastering TempDB is a critical skills for SQL Server DBAs. In this article, Monica Rathbun explains the basics of TempDB including configuration.
2021-02-19
SQL Server triggers are another tool in your DBA or Dev toolbox. Edward Pollack explains what can go wrong with triggers and how to correct those issues.
2021-02-18
In this article we look at the different SQL syntax you need to use when updating data when joining tables for SQL Server, Oracle and PostgreSQL.
2021-01-29
Comparing current performance to baselines helps DBAs know when there’s a problem. In this article, Pamela Mooney describes how to measure the physical resources drive space, latency, memory, and CPU.
2021-01-06
There are a handful of options when backing up SQL Server databases. A DBA must understand the differences and come up with a plan that protects the organisation’s data. In this article, Pamela Mooney explains service level agreements, recovery models, and some strategies to ensure that the data can be restored quickly.
2020-12-09
By ReviewMyDB
Index maintenance has always meant nightly jobs and a window you have to defend....
I’m sure you’ve all heard the tale of Goldilocks and the Three Bears, but...
By Steve Jones
One of the things I’ve been requesting for a number of years is cost...
Comments posted to this topic are about the item SQL Art, Part 4: Happy...
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Comments posted to this topic are about the item How We Handled a Vendor...
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