There is a certain paradox in being advised to expect the unexpected, but the DBA must plan and prepare in advance to protect their organisation's data assets in the event of an unexpected crisis, and return them to normal operating conditions. To minimise downtime in such circumstances should be the aim of every effective DBA. To plan for recovery, It pays to have the mindset of a pessimist.
2012-12-14
1,871 reads
Functionality to help maintain a Disaster/Recovery (D/R) Environment synchronized with production is introduced and the associated challenges are discussed.
2012-12-13 (first published: 2011-03-31)
10,023 reads
There are some skills which are extensions of your instincts, and which you can only learn though years of experience. Matt Simmons has this brought home by the fact that he was recently minutes away from a data-loss disaster, and he doesn't quite know how he prevented it.
2012-12-13 (first published: 2010-03-25)
7,373 reads
A real world account of disaster recovery. (This article is being republished after the recent hurricane that hit the US East Coast).
2012-12-12 (first published: 2002-04-22)
9,666 reads
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.
2012-12-12 (first published: 2012-11-26)
2,382 reads
A suggested design for creating flight schedules makes querying easy. Includes basic airport and airlines data. Get started now with this tricky query problem.
2012-12-11
15,283 reads
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.
2012-12-11
3,466 reads
This paper provides a foundation for understanding data replication as well as a discussion of the criteria for selecting an appropriate replication technology.
2012-12-10
2,440 reads
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.
2012-12-10 (first published: 2011-09-26)
5,176 reads
Planning for disaster recovery and business continuity aren't amongst the most exciting IT activities. They are, however, essential and relevant to any Database Administrator who is responsible for the safety and integrity of the companies' data, since data is a key part of business continuity.
2012-12-10
2,360 reads
By Steve Jones
I went to sleep while reading a Kindle book on my phone. I know...
A conversation with Jan Laš, CIO at HOPI, about what deploying a data agent...
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I have this data in a table called dbo.NFLTeams
TeamID TeamName City YearEstablished ------ -------- ---- --------------- 1 Cowboys Dallas 1960 2 Eagles Philadelphia 1933 3 Packers Green Bay 1919 4 Chiefs Kansas City 1960 5 49ers San Francisco 1946 6 Broncos Denver 1960 7 Seahawks Seattle 1976 8 Patriots New England 1960If I run this code, how many rows are returned?
SELECT TOP 2
json_objectagg('Team' : TeamName)
FROM dbo.NFLTeams;
See possible answers