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
14,568 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
1,629 reads
2020-03-23
1,532 reads
This article demonstrates how the geometric functions in SQL can be use to solve the Islands and Gaps problem.
2020-03-16
2,541 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
5,978 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
992 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
3,559 reads
By Steve Jones
Many organizations list customer testimonials and quotes on their websites or literature. It makes...
pg_cron is a simple cron-based job scheduler for PostgreSQL that runs inside the database...
By Steve Jones
I heard someone say recently that you can’t change a primary key value in...
Comments posted to this topic are about the item Life Moves Pretty Fast
Hello SSC, Happy Friday! I have to optimize a process that uses dynamic SQL...
Comments posted to this topic are about the item 50 Years of Microsoft
Can I have a collation expression like this in SQL Server 2022?
... WHERE ColumnA = ( 'abc' COLLATE French_CI_AS) COLLATE French_CS_AS ...See possible answers