2018-06-05 (first published: 2018-01-11)
2,195 reads
Performance
2018-02-28 (first published: 2018-01-10)
3,114 reads
2018-06-12 (first published: 2018-01-03)
1,986 reads
2018-05-30 (first published: 2018-01-03)
2,528 reads
Why is My Database Application so Slow?
When your application is running slowly, the reflex action is to blame the database queries. It is certainly true that some of the more extravagant delays can be fairly blamed on a missing index or unnecessary locking, but there are other potential villains in the drama, including the network and the application itself. Dan Turner points out that you could save a lot of time and money by working out for sure where the problems lie before diving into the detail.
2017-11-02
7,358 reads
SQL Server Performance Benchmarking with Patterns
A SQL Server, SQL Azure and Hekaton performance bench marking application that uses patterns.
2019-06-14 (first published: 2017-10-19)
5,038 reads
Investigating the Cause of SQL Server High CPU Load Conditions When They Happen
Any DBA who is trying to find the cause of an intermittent problem with a server or database dreams of being able to use a query or procedure take a snap of the relevant variables at the point when the problem occurred. Laerte takes an example of a slow-running query hogging resources to show that you can run queries when a WMI alert is fired, and save the results for later inspection, whenever it happens.
2017-09-20
4,188 reads
Five Mistakes Performance Tuners Make
Erik Darling explains why your queries aren't scaling in production.
2017-09-06
5,344 reads
Performance Myths : Oversizing string columns
Aaron Bertrand shows a quick demo that illustrates why you should be very careful about oversizing varchar / nvarchar columns.
2017-08-02
8,420 reads
Performance Myths: Oversizing string columns
Aaron Bertrand shows a quick demo that illustrates why you should be very careful about oversizing varchar / nvarchar columns.
2017-07-13
7,641 reads
Blogs
PostgreSQL Support in the Data API Builder
By Steve Jones
Next week I’m at VS Live in San Diego (register and join me) and...
Ten Years of PowerShell
Ten years ago today, I filmed a Pluralsight Play by Play on open source...
T-SQL Tuesday #202: 100 Hours
By Steve Jones
It’s time for T-SQL Tuesday again and this is a great prompt to start...
Forums
Stored Procedures for Server-Level Object and Column Search
Comments posted to this topic are about the item Stored Procedures for Server-Level Object...
Databricks Genie Spaces for SQL Analysts: Natural Language Querying Without Leaving Your Data Platform
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The Costs of Multiple Platforms
Comments posted to this topic are about the item The Costs of Multiple Platforms
Question of the Day
RegEx Functions II
I have this data in a table in a SQL Server 2025 database:
EmailAddressID EmailAddress 7 dylan0@ADVENTURE-WORKS.COM 8 Diane1@ADVENTURE-WORKS.COMIf I run this query, which row(s) are returned?
SELECT top 10 * FROM person.EmailAddress WHERE REGEXP_LIKE(EmailAddress, '^d') AND BusinessEntityID IN (7,8)See possible answers