Estimated Number of Rows to be Read
Rob Farley uses this month's T-SQL Tuesday to show off the results of one of his Connect items : Estimated Number of Rows to be Read.
Performance of the SQL MERGE vs. INSERT/UPDATE
The SQL MERGE statement offers convenience, safety and elegance, but how does it perform compared to other methods?
Your Favorite Feature that Needs Work
This week Steve Jones asks what parts of SQL Server would you improve and why.
PowerShell Invoke-SQLCmd outputs DataTables you can INSERT into SQL Server
Aaron Nelson explains how you can take an existing SQL query, run it against a SQL Server and then take the results and save them to a different SQL Server without using Linked Servers.
A Failed Jobs Monitoring System
One DBA's tale of how to monitor jobs for failure and ensure that the DBA is alerted to the fact that there is a problem. (from Feb 2008)
Adding Slicers to a Reporting Services Report
This article shows you how to create dynamic slicers from a data set in an SSRS report
DBA Morning Check List
This article helps the DBA find and fix issues quickly by creating a DBA Morning Checklist.
Execution Plans
How many of you use Execution Plans to tune your queries? Do you understand the impact of different indexes? Mr. Vijayakumar looks at his experiments with different types of indexes and their effects on the execution plan use. A great article for those of you that want to learn more about how you can tune your server for better performance.
Monitoring Drive and Database Free Space
SQL Server will autogrow your databases as they run out of space. But the process doesn't manage space, nor does it check the free space on the drive. Allowing autogrow to grow unchecked and unmanaged will eventually use up all the free disk space and potentially crash your server. New author Mark Nash brings you his system for monitoring space usage and generating a report that eases this process.
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