High Availability (HA)

SQLServerCentral Article

High Availability (DR) Using SQL Server 2005 Transactional Replication

  • Article

One of the four high availability technologies in SQL Server is replication, though this can be very cumbersome to setup and get working. Longtime author Paul Ibison looks at how this has changed from SQL Server 2000 to 2005 and what you should consider before setting this up.

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2008-04-17

7,770 reads

SQLServerCentral Article

A Look at Database Mirroring

  • Article

One of the more interesting new technologies in SQL Server 2005 is database mirroring, allowing you to implement high availability on a database with commodity hardware. Jay Dave brings us a nice description of this technology.

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2008-06-18 (first published: )

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SQLServerCentral Article

Mirrored Backups

  • Article

One very interesting new feature in SQL Server 2005 is the ability to run backups to multiple locations, ensuring you have a second copy of the backup file if your first one were to be corrupted. SQL Server expert Andy Warren takes a look at how this feature works and the implications of using it.

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2008-05-12 (first published: )

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Question of the Day

The "ORDER BY" clause behavior

Let’s consider the following script that can be executed without any error on both SQL Sever and PostgreSQL. We define the table t1 in which we insert three records:

create table t1 (id int primary key, city varchar(50));

insert into t1 values (1, 'Rome'), (2, 'New York'), (3, NULL);
If we execute the following query, how will the records be sorted in both environments?
select city

from t1

order by city;

See possible answers