Disaster After Disaster
A disaster can easily lead to another disaster. Can you respond to multiple problems? Have you even considered the cascade effects of a large disaster?
In The Real World - Disaster!
A real world account of disaster recovery. (This article is being republished after the recent hurricane that hit the US East Coast).
Handling Backups for Rapid Resilience
The backup and restore system in SQL Server hasn't changed a great deal over the years despite a huge growth in the typical size of databases. When disaster strikes, and an important service is taken offline while a restore is performed, there is often time to reflect on whether it might be possible to design databases for a more rapid recovery of the most critical parts of a database application.
Departures from Origins and Arrivals at Destinations
A suggested design for creating flight schedules makes querying easy. Includes basic airport and airlines data. Get started now with this tricky query problem.
Test Your Restores
Part of an effective response to a disaster situation is practice and testing of your skills and procedures. Steve Jones reminds us this is important today.
SQL Server Backup Questions We Were Too Shy to Ask
During presentations about doing database backups and restores, there seem to be two two types of questions that are commonly asked, Those that come from the floor during the presentation, and those that are asked in private afterwards. These are sometimes more interesting, and challenging to answer well.
Data Distribution with SQL Server Replication
This paper provides a foundation for understanding data replication as well as a discussion of the criteria for selecting an appropriate replication technology.
Grace Under Pressure
When a disaster strikes, how will you respond? Will you not only successfully recover, but will you do so with professionalism and grace under pressure? Steve Jones tells you how you can.
What Counts for a DBA: Being Replaceable
Louis Davidson describes why all DBAs should strive to be replaceable, and what that really means.
What’s in YOUR Recovery Plan?
Author Craig Outcalt gives advice on preparing for the worst with a look at what you should consider putting in your disaster recovery plan and why.
Blogs
KDA: Echoes of Deception - Case 6
By Zikato
A cryptic message, a book cipher hidden in art provenance records, and a trail...
Capturing My Own Metrics: #SQLNewBlogger
By Steve Jones
A customer was trying to compare two tables and capture a state as a...
Red Flags in Your Query (T-SQL Tuesday #200)
By Zikato
When I'm looking at a query, I bet it's bad if I see... a...
Forums
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BIT_COUNT II
Comments posted to this topic are about the item BIT_COUNT II
Question of the Day
BIT_COUNT II
In SQL Server 2025, I have a table (dbo.UserPermission) that contains this data:
UserID UserPermissions 15 23 37 4 NULLWhat is returned when I run this code:
select bit_count(UserPermissions) as PermissionCount from dbo.UserPermission where UserID = 4;See possible answers