The Year in Review 2008
Steve Jones looks back at the past year and database news that has occurred.
Use Excel to DIFF Your Query Outputs
Comparing data from two queries to see if they return the same results can be an interesting challenge. David Ziffer brings us a great way to do this using Excel.
Temporal Datatypes in SQL Server
In the first of a series of articles on the tricks of tackling temporal data in SQL, Joe Celko discusses SQL's temporal data types and agonizes over the fact that, although there are ANSI/ISO Standards for temporal operations in SQL, every vendor has something different.
The New Year - 2009
It's the first day of 2009 and Steve Jones gives a few predictions for the new year in this editorial.
The New Year - 2009
It's the first day of 2009 and Steve Jones gives a few predictions for the new year in this editorial.
The Year in Review 2008
It's the first day of 2009 and Steve Jones gives a few predictions for the new year in this editorial.
Using Page Level Restore as a Disaster Recovery Procedure in SQL Server 2005
In a previous tip on Disaster Recovery Procedures in SQL Server 2005 Part 1, we have seen how we can come up with a disaster recovery procedure in SQL Server 2005. There are other ways to increase availability of your highly critical database in SQL Server 2005. What are those other options?
Moving TempDB - SQL School Video
Moving databases is fairly simple, but when you move a system database, there are a few extra steps to follow. MVP Brian Knight walks us through how to move temdb in this video.
SSIS Lookup using a Script Component
What would you do if you want to perform 15 to 30 lookups using the same reference dataset? This is how I did it...
The December 2008 Energy Update
Steve Jones gives one last update on energy issues in the US in 2008 with a look at the construction and building industries.
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...
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...
Cognitive Coverage
Comments posted to this topic are about the item Cognitive Coverage
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