2015-04-15
532 reads
Articles
SQL Server Spatial Indexes
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
Prevent and Log Certain SQL Server Login Attempts
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
Never Ignore a Sort Warning in SQL Server
It is always bad news if your SQL queries are having to use the SORT operator. It is worse news if you get a warning that sort operations are spilling onto TempDB. If you have a busy, slow TempDB, then the effect on performance can be awful. You should check your query plans to try to eliminate SORTs and never leave a SORT warning unheeded. Fabiano Amorim shows the range of ways of getting information on what is going on with a query that is doing a SORT and when requests are made for memory.
2015-04-13
8,822 reads
Five Rules For Successful Conversations With DBAs
As a developer working with SQL Server, you'll need to work with DBAs at one point or another. Here are some easy ways to make those conversations go smoothly.
2015-04-10 (first published: 2013-09-24)
18,357 reads
The Internet of Things: A New World Order?
Was the marketing hook 'The Internet of Things' conjured up before the technical definition? Are we being persuaded to spend money on fending off yet another fantasy tsunami of data? Already, we have televisions that listen to, and report, your conversations; so are we facing the Science Fiction future of gadgets that report where you go, who you visit and what medications you take? As Robert Sheldon says; "It's big, almost too big to get your arms around".
2015-04-10
11,037 reads
Cardinality Estimator – What’s new in SQL Server 2014
SQL Server 2014 has introduced a rebuilt Cardinality Estimator (CE) with new algorithms. Which are the biggest differences between the new CE and the previous one? Which one works better? Read more to find out.
2015-04-09
6,815 reads
Creating a multi-option parameter report for SQL Server Reporting Services
If you have a reporting requirement where users want to enter report parameters by either selecting values from a dropdown list or entering To and From range values, Ghanesh Prasad explains how to accomplish this in a Reporting Services report?.
2015-04-09
9,591 reads
Painless Refactoring of SQL Server Database Objects
Refactoring a database object can often cause unexpected behavior in the code that accesses that object. In this article, adapted from his excellent book, Defensive Database Programming with SQL Server, Alex Kuznetsov discusses several techniques that will harden your code, so that it will not break, or behave unpredictably, as a result such changes.
2015-04-08
11,414 reads
What is Database Continuous Integration?
This is an introductory article to explain what Continuous Integration (CI) is and how it can be used in database development.
2015-04-07
6,539 reads
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Celebrating Tomorrow
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