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)
33,014 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 HeyMo0sh
As someone who’s worked with data for over 20 years and with many cloud...
By HeyMo0sh
2025 belongs to the AI startups. If you peek into the tech headlines, you’ll...
By Vinay Thakur
it has been a year since i have not written much on the blog...
Comments posted to this topic are about the item A Quick Restore
Comments posted to this topic are about the item Guarding Against SQL Injection at...
I have a quick question on Ola Hallengren Index Optimize Maintenance . Do we...
While doing some testing of an application, I wanted to reset my environment after doing some testing with this code:
USE DNRTest BACKUP DATABASE DNRTest TO DISK = 'dnrtest.bak' GO /* Bunch of stuff tested here */RESTORE DATABASE DNRTest FROM DISK = 'dnrtest.bak' WITH REPLACEWhat happens if this runs, assuming the "bunch of stuff" isn't anything affecting the instance. See possible answers