If you need to do a time test for restoring an Azure SQL database from a point in time, and wonder about automating this through PowerShell, here are the guidelines that Tim Smith would you recommend?
2015-04-27
4,842 reads
Microsoft 'Always On' technology does not support distributed or cross-database transactions. Why not? Grahaeme Ross shows how to investigate cross-database transactions to understand the problem in more detail, and concludes that a Cross-Database transaction can cause loss of data integrity in the commit phase of the two-phase commit.
2015-04-24
7,846 reads
Say you have a SQL Server Integration Services (SSIS) package with a Foreach Loop container. Inside that container you have a task that sometimes can fail. Koen Verbeeck provides a tip on how to implement SSIS so that, if it fails, the loop will just continue, skip the current step and go to the next iteration.
2015-04-23
7,361 reads
Access-control within the database is important for the security of data, but it should be simple to implement. It is easy to become overwhelmed by the jargon of principals, securables, owners, schemas, roles, users and permissions, but beneath the apparent complexity, there is a schema-based system that, in combination with database roles and ownership-chaining, provides a relatively simple working solution.
2015-04-22
6,866 reads
There are several different approaches to automating deployment of SQL Server Infrastructure-as-a-Service virtual machines in Microsoft Azure. Marcin Policht examines an approach that involves uploading or creating a custom operating system image which is well suited for scenarios where you want to deploy a custom-configured SQL Server instance to multiple virtual machines with minimal effort and maximum consistency.
2015-04-21
7,452 reads
One of the most certain ways of going wrong with any relational database is to get data conversion wrong. Implicit data conversion is a good feature for the expert but can cause a lot of trouble to the unwary. These boil down to seven ways of failing to get data conversion right. Rob Sheldon explains and gives sage advice on how to avoid the problems.
2015-04-20
7,337 reads
The job of a DBA requires a fusion of skill and knowledge. To acquire this requires a craftsman mindset. Craftsmen find that the better they get at the work, the more enjoyable the work gets, and the more successful they become. Deliberate practice, Specialization and an appetite for overcoming difficulty are good habits to deliberately adopt to successfully grow those craftsmanlike skills to the point that you become “so good they can’t ignore you”.
2015-04-17
9,586 reads
There are times when you don’t what to return a complete set of records. When you have this kind of requirement to only select the TOP X number of items Transact SQL (TSQL) has the TOP clause to meet your needs. In this article Greg Larsen explores how to select a subset of data from a record set.
2015-04-16
9,580 reads
Spatial Data in SQL Server has special indexing because it has to perform specialised functions. It is able, for example, to break down an indexed space into a grid hierarchy by using a technique called tessellation. This is a rules-based system that, when you compare a shape to an index, works out how many cells in the the grid hierarchy are touched by that shape , and how deep down the grid hierarchy to search. There is powerful magic in Spatial Indexes as Surenda and Roy explain.
2015-04-15
7,242 reads
Aaron Bertrand presents a more elegant to prevent developers from attempting to log into production databases using application logins (and to log any such attempts).
2015-04-14
7,318 reads
By Vinay Thakur
As discussed introduction of Always Encryption blog and initial Encryption at rest as TDE...
By Vinay Thakur
Transparent Data Encryption(TDE): TDE was initially introduced in SQL Server 2008 Enterprise Edition; this...
By Steve Jones
Only a little break for me. I’m actually heading to Las Vegas today for ...
Comments posted to this topic are about the item The day-to-day pressures of a...
Comments posted to this topic are about the item The Problem Isn't Always Your...
Comments posted to this topic are about the item Identity Defaults
What happens when I run this code?
CREATE TABLE dbo.IdentityTest
(
id int IDENTITY(10) PRIMARY KEY,
somevalue VARCHAR(20)
)
GO
See possible answers