2012-07-17
2,088 reads
2012-07-17
2,088 reads
2012-04-06
2,658 reads
There are lots of things to think about when you design a physical database. What data types should I use? What column is appropriate for the primary key? Are there particular indexes that I should use to improve performance? How should I implement data integrity rules? This list goes on and on. In this article Greg Larsen will be exploring different physical database design elements.
2012-01-24
3,644 reads
Bad data always seems to appear when, and where, one least expects it. Sam explains the great value of a defensive approach based on constraints to any team that is developing an application in which the data has to be exactly right, and where bad data could cause consequential severe financial damage. It is perhaps better seen as creating a test-driven database.
2012-01-09
2,574 reads
2011-11-09
2,520 reads
2011-10-12
2,206 reads
There is a popular design for a database that requires a built-in audit-trail of amendments and additions, where data is never deleted, but superseded by a later version. Whilst this is conceptually simple, it has always made reporting the latest version of data complicated. Alex Kuznetsov joins the debate on the best way of doing this with an example using an indexed view and the filtered index.
2011-07-15
3,274 reads
2011-07-12 (first published: 2011-07-01)
1,118 reads
Identifiers aren't locators, and they aren't pointers or links either. They are a logical concept in a relational database, and, unlike the more traditional methods of accessing data, don't derive from the way that data gets stored. Identifiers uniquely identify members of the set, and it should be possible to validate and verify them. Celko somehow involves watches and taxi cabs to illustrate the point.
2011-06-20
2,815 reads
I’ve explained the database design process in a series of articles that you can find here. In this tutorial, I’ll put that information to good use and design a database from the start of the process to the finish. To keep this example to a single article, I’ll not repeat the information from those previous articles, so make sure you look those over before reading this one.
2011-04-11
5,179 reads
By Chris Yates
A brief introduction to the tool and its advantages for database migrations DevOps is...
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Businesses are drowning in data, but starving for insights. That's where SQL experts swoop...
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I'm only processing 50,000 records not everything from the Table where there are 250,00...
I want to mark a transaction in the log as a recovery point. How do I do this in my code if I use the transaction, myTran?
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