Brent Ozar's Six Scary SQL Surprises
In lesson 3 of the Top 5 Hard-earned Lessons of a DBA series, Brent Ozar exposes six common but scary surprises that can lurk behind the façade of SSMS. Read it now, and learn hard lessons the easy way.
Using the SQL Server MERGE Statement to Process Type 2 Slowly Changing Dimensions
The MERGE statement is powerful and multifunctional, yet it can be hard to master. SOmetimes the MERGE statement that just doesn't do what it's needed to do, like process a Type 2 slowly-changing dimension. Check out this tip to learn more.
Data Insecurity: A Perspective on Data Encryption
The focus of this paper is on the protection of PII data stored within a database using encryption technologies.
Productivity and Accountability
The recent decision by Yahoo to end telecommuting elicits some comments from Steve Jones on the topic of remote work.
Securing SQL Server: Vulnerabilities You Might Not Have Considered
A short look at the vulnerabilities your data may be susceptible to outside of the database tables.
A SQL-Based Universal Currency Formatter
SQL Server isn't usually the best place to format dates or currency as strings. It can be a complex task to conform correctly with national and cultural conventions. Just occasionally, though, you need to do it. This is easy in SQL Server 2012, but if you aren't using that, what do you do?
Two Plugs Away
The culture and practices at Valve are interesting to Steve Jones, but the desks really caught his eye.
SQL Saturday #194 - Exeter
A day of SQL Server training in the UK on Mar 9, 2013. Sign up if you can come.
Using Temp Tables in SSIS
emporary tables are created in the Temporary tables are created in the TempDB database, which persists for a particular session. The objective is to maintain that session, until the temp table information is used and dump the data into a physical table.
Data We Don't Want
There's potentially an exploit that can download lots of data to a machine. This shouldn't be a concern for servers, but you never know.
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