Using OVER() to Fix Bad Version Numbers
See how the OVER() clause was used in a live system to fix overlapping field version numbers.
2016-10-17
2,393 reads
See how the OVER() clause was used in a live system to fix overlapping field version numbers.
2016-10-17
2,393 reads
A free day of training on Monday, October 24 in Seattle this year. Join MCMs, MVPs, and Friends of Redgate for a free day of training.
2016-10-17 (first published: 2016-09-21)
6,162 reads
SQL Server's In-memory OLTP is fast, due to its multi-valued concurrency control (MVCC). MVCC avoids the need for locks by arranging for each user connected to the database to see a snapshot of the rows of the tables at a point in time, No changes made by the user will be seen by other users of the database until the changes have been completed and committed. It is conceptually simple but does the user always see the correct version of a row under all circumstances? Shel Burkow explains.
2016-10-17
3,150 reads
You should stick to using tables in SQL Server, rather than heaps that have no clustered index, unless you have well-considered reasons to choose heaps. However, there are uses for heaps in special circumstances, and it is useful to know what these uses are, and when you should avoid heaps. Uwe Ricken explains, and demonstrates why you'd be unwise to use heaps rather than tables when the data is liable to change.
2016-10-14
3,646 reads
It’s often useful to be able to create a directory of object-level scripts from an existing database, for example to put a database into version control, or search through a directory of scripts. In this simple ‘how to’ article, Feodor Georgiev expands on the four most common reasons, and shows how simple it is using SQL Compare.
2016-10-14
3,220 reads
SQL Server 2016 introduced three new objects to deal with the greater demand of data; John Miner takes a look at this new functionality.
2016-10-13
4,605 reads
2016-10-12
102 reads
Rangarajan Srirangam from the Azure Customer Advisory Team shares some tips and techniques to help achieve an efficient data migration to Azure SQL Data Warehouse.
2016-10-12
2,674 reads
Many of have applications that log errors to a table. Ever thought about what happens when an application starts to throw a lot of errors? This article looks at the problem and some of the responses you might consider having ready in case it happens to you!
2016-10-11
1,806 reads
For some time now, C# programmers have gazed enviously at the interactive capabilities of F#, Python and PowerShell. For rapid prototyping work and interactive debugging, dynamic languages are hard to beat. C# Interactive slipped into view quietly, without razzmatazz, in Visual Studio 2015 Update 1. It's good, it's worth knowing about; and Tom Fischer is intent on convincing you of that.
2016-10-11
5,674 reads
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In SQL Server 2025, what is returned by this code:
SELECT EDIT_DISTANCE('tim', 'tom')
Assume preview features are enabled. See possible answers