SQL Server transaction log files have an internal structure called the Virtual Log File or VLF. When the number of VLFs grow out of control due to autogrowth the log can become fragmented and cause delay. In this tip we look at how to see how many VLFs exist as well as how this can be reduced to a more reasonable number.
2010-09-13
3,345 reads
A free one day training event in Raleigh, NC. Come to the first SQL Saturday in this city on Sept 18, 2010
2010-09-13 (first published: 2010-09-02)
1,529 reads
2010-09-10 (first published: 2008-11-17)
33,013 reads
Cartesian Products usually don't provide useful information and often result in mistakes that can hurt your database developer career. Learn to spot Cartesian Joins and banish them from your SELECT queries forever.
2010-09-10
4,388 reads
SQL Saturday Columbia, SC gives you a chance to get a full day of free SQL Server information, lectures, and seminars from the experts on the East Coast.
2010-09-10
1,014 reads
How does the query optimizer build an execution plan for your queries? Paul White shows is in part two of a four-part series exploring the internals of query optimization.
2010-09-09
7,833 reads
Find out in this webinar how easy it is with Red Gate's SQL Virtual Restore to mount live, fully functional databases direct from backups – without performing a physical restore. Learn how you can use SQL Virtual Restore to save storage space and time across a wide range of database administration activities.
2010-09-09
1,093 reads
There are a number of ways to issues CTIs (Current Time Increments) into your StreamInsight streams but a quite useful way is to do it declaratively on your source factory like this
2010-09-09
1,492 reads
A review on the basic steps to correct a poorly performing query
2010-09-08
12,480 reads
You can easily re-factor bad DML code, but if a database design is wrong, you can do little to rescue the problem, even with expert queries. So what constitutes 'wrong RDBMS design? What are these errors that continually crop up? How can you recognise them and fix them? Joe embarks on a new series of articles by identifying a series of bad practices based on the habit of 'splitting' that which shouldn't be split.
2010-09-08
2,767 reads
By Steve Jones
I haven’t done one of these in awhile, but I saw an article recently...
In last months one of the scenarios where you can use AI has been...
By ChrisJenkins
Do you spend so long manipulating your data into something vaguely useful that you...
Comments posted to this topic are about the item Creating JSON II
Comments posted to this topic are about the item Engineer Lessons
On SQL Server 2025, what happens when I run this code:
SELECT JSON_OBJECTAGG( N'City':N'Denver' RETURNING JSON) GOSee possible answers