Introduction The analysis of blocking in SQL Server can be hard if the SQL Server instance has a high number of active connections. This analysis becomes complicated because busy instances could have more than one blocking connection, meaning that we could have more than just one blocking chain. For every group of blocked connections, we […]
2021-02-04
12,874 reads
Problem Finding the hole for continuous sequences of numbers could be a discouraging task even for advanced programmers. This article presents a new solution based on usage of geometry data type and on a unknown function (if not, maybe less used function) specific designed for geometry objects. Sample: Given the following sequence of [dis]continuous numbers […]
2020-03-30
1,594 reads
2020-03-23
1,491 reads
This article demonstrates how the geometric functions in SQL can be use to solve the Islands and Gaps problem.
2020-03-16
2,414 reads
Problem The usage of a collection of integers in some scenarios is considered to be optimal because of the overhead involved by the creation of another user table used just to store numbers, which is the most common solution. What are collections of integers? They are lists or arrays consisting of integers. The number of […]
2020-02-13
5,884 reads
This article is just a short follow up of previous article on filegroup restoring that describes one issue with join elimination optimization.
2017-08-10
960 reads
In this article, we'll explore a less used feature of SQL Server: filegroup restoring, feature that has an interesting consequence because database can become inconsistent without any warning and standard checks don't reveal any issue.
2017-06-27
2,774 reads
By Steve Jones
The season 1, seventh episode of Simple Talks is out. Check it out, with...
By Steve Jones
the McFly Effect – n. the phenomenon of observing your parents interact with people...
At a recent conference I was asked how I executed code during my presentation....
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