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
13,717 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
1,609 reads
2020-03-23
1,519 reads
This article demonstrates how the geometric functions in SQL can be use to solve the Islands and Gaps problem.
2020-03-16
2,481 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
5,929 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
979 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
3,146 reads
By Steve Jones
I saw someone limit the databases they see in SSMS, which isn’t something I...
Since witnessing a rather nasty cyber attack around a year ago, I’ve been thinking...
By Steve Jones
My slides are here: VCS Primer Denver 2023 This was an overview of what...
Hi We have an stored procedure which runs frequently and it contain logic in...
Hi I am new to replication and we have database of size around 2TB...
I want to query a table that has a datetime column ([CreateDateTime]) and get...
Ask SSC