3 SQL Join Concepts to Help You Choose the Right Join
What do SQL joins and the "teach a man to fish" Chinese proverb have in common? SQL joins, like regular expressions, are one of those commonplace programming tasks in which true success is entirely dependent upon your ability to conceptualize the outcome. Fail to do so and you'll likely wind up spending a few hours in a frustrating round of trial and error. Like regular expressions, the proliferation of online examples has actually contributed to the frustration, providing the equivalent of a day's worth of fish rather than the proverbial fishing pool.
Automatically Scripting Out Permissions for Cross Environment Restores
This article from Warren Campbell shows a process to recreate permissions in development environments after restoring a database from a production instance.
Not having TDE in all editions is stupid
Transparent Data Encryption is only available in Enterprise Edition and above. Steve Jones thinks that's a mistake.
Bringing Alerts and Operators together with Notifications
FatherJack shows you how to check that your alerts and notifications are linked up so that when an Alert condition is met that you get the appropriate Notifications sent to Operators.
A Welcome Intruder
This Friday Steve Jones asked about penetration testing of your security. Have any of you ever tested your systems?
Announcing Red Gate SQL Test
SQL Test is a new unit testing plug-in which allows you to seamlessly write, run and manage tests within SQL Server Management Studio. Download the preview release now.
Working with the XML Data Type in SQL Server
The XML data type, introduced in SQL Server 2005, is a powerful construct. When used wisely, it can provide useful extensions to SQL Server. Robert Sheldon, in the first part of a series, describes how create and index a XML column in a table, and discusses when you should consider using an XML data type.
Fast Migrations
Virtualization is an important technology for anyone working with servers, and as vendors look to improve the performance of their hypervisors, this technology might be more important for data professionals to understand.
Blogs
Automatic Index Compaction
By ReviewMyDB
Index maintenance has always meant nightly jobs and a window you have to defend....
The Goldilocks problem – Materialized Views
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 Steve Jones
One of the things I’ve been requesting for a number of years is cost...
Forums
SQL Art, Part 4: Happy 4th of July — A British DBA's Guide to Celebrating a War We Don't Talk About
Comments posted to this topic are about the item SQL Art, Part 4: Happy...
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How We Handled a Vendor Retry That Loaded Twice in Snowflake
Comments posted to this topic are about the item How We Handled a Vendor...
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