This level takes a deeper look at how log fragmentation can affect the performance of operations that need to read the log, such as log backups, or the crash recovery process.
2025-08-27 (first published: 2013-04-17)
7,616 reads
This level will examine the most common problems and forms of mismanagement that lead to excessive growth of the transaction log.
2025-08-13 (first published: 2012-11-26)
13,373 reads
A DBA may consider switching a database to the BULK_LOGGED recovery model in the short term during, for example, bulk load operations. When a database is operating in the BULK_LOGGED model these, and a few other operations such as index rebuilds, can be minimally logged and will therefore use much less space in the log
2025-07-30 (first published: 2012-11-07)
5,959 reads
Gail Shaw is often left bewildered by the weird and wonderful data types people choose for their tables, when storing something as simple as a telephone number or a date.
2024-07-12 (first published: 2015-02-02)
697 reads
At first glance, the question of how many rows are estimated from a table variable is easy. But, is it really that simple? Well, not really. To dig into...
2020-12-23 (first published: 2020-12-15)
420 reads
At first glance, the question of how many rows are estimated from a table variable is easy. But, is it really that simple? Well, not really. To dig into...
2020-12-15
12 reads
It’s a few days into April, but not too late I hope to mention that Pluralsight is offering their entire library, free to new accounts, for the month of...
2020-04-16 (first published: 2020-04-07)
494 reads
It’s a few days into April, but not too late I hope to mention that Pluralsight is offering their entire library, free to new accounts, for the month of...
2020-04-07
6 reads
Gail Shaw issues a rallying call for the SQL Community to adopt the Scientific Method when investigating and reporting on SQL Server behavior.
2019-09-09 (first published: 2015-05-25)
603 reads
Indexes are critical to good performance. However many people don't understand how indexes well. MVP Gail Shaw provides us with an introductory article on the basics of indexing.
2019-05-30 (first published: 2009-10-26)
103,278 reads
By Steve Jones
I think we might have forgotten this a bit, but on one of the...
By Brian Kelley
I refresh my test SQL Servers at least monthly with a fresh VM. Setting...
By Chris Yates
Embracing Total Responsibility In every organization there comes a moment when teams must choose...
We have created a parent table, child table & Audit log table in SQL...
Comments posted to this topic are about the item Change Tracking Default Retention
I am trying to create a subscription that posts to a one drive directory. ...
I run this command on my SQL Server 2022 database:
ALTER DATABASE AdventureWorks2017 SET CHANGE_TRACKING = ON;What is the default data retention period? See possible answers