A Tale of Broken BI
Graphs and charts are dangerous in the wrong hands, and if built on data that is carelessly gathered will mislead as often as they lead. Phil Factor speaks from hard experience.
Stairway to XML: Level 7 - Updating Data in an XML Instance
You need to provide the necessary keywords and define the XQuery and value expressions in your XML DML expression in order to use the modify() method to update element and attribute values in either typed or untyped XML instances in an XML column. Robert Sheldon explains how.
The PoSh DBA: Solutions using PowerShell and SQL Server
PowerShell is worth using when it is the quickest way to providing a solution. For the DBA, it is much more than getting information from SQL Server instances via PowerShell; it can also be run from SQL Server as part of a system that helps with administrative and monitoring tasks.
Understanding Column Properties for a SQL Server Table
Designing a table can be a little complicated if you don’t have the correct knowledge of data types, relationships, and even column properties. In this tip, Brady Upton goes over the column properties and provides examples.
Two Steps Ahead
Today Steve Jones talks about those great DBAs, the Exceptional ones that do more than just respond to issues or set up monitoring on their systems.
Getting Started With XML Indexes
XML Indexes make a huge difference to the speed of XML queries, as Seth Delconte explains; and demonstrates by running queries against half a million XML employee records. The execution time of a query is reduced from two seconds to being too quick to measure, purely by creating the right type of secondary index for the query.
A SQL Server Log Reader
There's a hole in the SQL Server platform. No log reader comes with the product and Steve Jones thinks Microsoft should build one and include it.
SQL Server Semantic Search to Find Text in External Files
Sometimes it is necessary to search for specific content inside documents stored in a SQL Server database. Is it possible to do this in SQL Server? Can I run T-SQL queries and find content inside Microsoft Word files? Yes, now with SQL Server 2012 you can do a semantic search.
Walk on the Wild Side
Today Steve Jones talks about the differences between development and production and how it can be good to spend a little doing the other type of work.
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