External Article

Strengthening the Foundations of Software Architecture

The term 'Architecture' seems to imply a plan that you can't easily subsequently deviate from. It's true that, if you abandon software architecture, you end up with a big ball of mud, but maybe the art of software is to make change much easier by planning how to implement each feature, tackling dependency issues, splitting functionality into small discrete components and considering how they should interact with each other.

External Article

Introduction to Azure SQL Database Temporal Tables

As announced on June 1, 2016, SQL Server 2016 has reached its general availability. This means that you finally have the option to implement some of its new features in the production environment. While we still have to wait for their full support in Azure SQL Database V12, it is likely that their preview stage will be concluded soon. In this article, we will focus on Temporal tables, which is one example of these new features.

Blogs

Automatic Index Compaction

By

Index maintenance has always meant nightly jobs and a window you have to defend....

The Goldilocks problem – Materialized Views

By

I’m sure you’ve all heard the tale of Goldilocks and the Three Bears, but...

Monday Monitor Tips: Virtual Machine Usage and Cost

By

One of the things I’ve been requesting for a number of years is cost...

Read the latest Blogs

Forums

SQL Art, Part 4: Happy 4th of July — A British DBA's Guide to Celebrating a War We Don't Talk About

By Terry Jago

Comments posted to this topic are about the item SQL Art, Part 4: Happy...

Alamat Kontak Resmi BCA KCP Kertajaya ??/Wa 08218154393

By layanan 24jam BCA

WA:08218154393 Jl. Kertajaya No.35, Airlangga, Kec. Gubeng, Surabaya, Jawa Timur 60281

How We Handled a Vendor Retry That Loaded Twice in Snowflake

By Chandan Shukla

Comments posted to this topic are about the item How We Handled a Vendor...

Visit the forum

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       NULL
All 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