Database Performance Transparency
Describes the benefits of publishing instance performance metrics including a script to generate HTML-based Performance Snapshot.
2012-02-08
6,951 reads
Articles
Rebuilding SQL Server indexes using the ONLINE option
As each year goes by the uptime requirement for our databases gets larger and larger, meaning the downtime that we have to do maintenance on our databases is getting smaller and smaller. This tip will look at a feature that was introduced in SQL Server 2005 that allows us to leave our indexes online and accessible while they are being rebuilt.
2012-02-08
4,386 reads
2012-02-07 (first published: 2010-09-08)
9,755 reads
TSQL function to detect SQL Agent job state
This article has a T-SQL function to detect the SQL Agent job state.
2012-02-07
9,615 reads
Converting String Data to XML and XML to String Data
In general XML documents or fragments are held in strings as text markup. In SQL Server, XML variables and columns are instead tokenised to allow rapid access to the data within. This is fine, but can cause some odd problems, such as ' entitization'. What do you do if you need to preserve the formatting? As usual Rob Sheldon comes to our aid.
2012-02-07
4,207 reads
Aggregate Function Product()
The TSQL aggregate function SUM() gives a number based on the addition of the values of multiple rows to each other. Do the same thing but with multiplication instead of addition.
2012-02-06
10,350 reads
TSQL Challenge 75 - Find the Episode and Sequence based on interval
The challenge is to find the Episode and Sequence based on interval.
2012-02-06
1,273 reads
Great SQL Server Debates: Buffer Cache Hit Ratio
One of the more popular counters used by DBAs to monitor SQL Server performance, the Buffer Cache Hit Ratio, is useless as a predictor of imminent performance problems. Worse, it can be misleading. Jonathan Kehayias demonstrates this convincingly with some simple tests.
2012-02-06
2,967 reads
Do you know your getdate()?
This article takes a closer look at SQL Server getdate() and sysdatetime() functions.
2012-02-03 (first published: 2010-05-12)
27,831 reads
A Computed Column Defined with a User-Defined Function Might Impact Query Performance
A benefit of using computed columns is that they can save developers from having to write calculation logic at the application layer; at the table level, the application can simply reference the computed column. In addition, performance can be improved by persisting a computed column and building an index on it.
2012-02-03
2,708 reads
Blogs
VPN + SQL Server Connections: Why Long-Working Setups Suddenly Fail with Msg 10054 and “Connection Broken”
By Tim Radney
Over the past few weeks, I’ve been contacted by multiple customers experiencing the same...
Future IT Roles – Agentic Architect and AI Boom!!
By Vinay Thakur
These days everything is changing to AI World, IT roles are getting changed and...
Free Webinar about Columnstore Indexes
I’m doing a small series on indexing basics for SQL Server, and on May...
Forums
There's Too Much to Learn
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How to Calculate Distance Between Coordinates in SQL Server
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SSoL Support on the OS
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Question of the Day
SSoL Support on the OS
On which Linux versions is SQL Server 2025 on Linux supported?
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