Packing intervals is a classic SQL task that involves packing groups of intersecting intervals to their respective continuous intervals. In mathematics, an interval is the subset of all values of a given type, e.g., integer numbers, between some low value and some high value.
2024-01-17
Learn how a C# script can easily load data from Excel into SQL Server.
2024-01-15
6,821 reads
Aggregation is a widely used way to summarize the content of a database. It is usually expressed with GROUP BY clause or just using aggregate functions (like COUNT or SUM). When the database engine executes a query with aggregations, it produces individual rows need to compute the required output and then performs the aggregation as (almost) last step. We discuss in this article how to re-write a query manually so that the order of operations will be different and when it can be beneficial.
2024-01-15
Learn how you can handle dimensional modeling in a data warehouse when your data uses different categorization for ages.
2024-01-12
2,921 reads
Nearly a decade ago, I wrote a post called “Bad habits : Counting rows the hard way.” In that post, I talked about how we can use SQL Server’s metadata to instantly retrieve the row count for a table.
2024-01-12
We are adding a consent form to the SQL Server Central website to allow our cookies.
2024-01-10
1,390 reads
Learn about the benefits of mixed extent allocation in SQL Server 2016, along with how you can check this setting or enable it in your database.
2024-01-10
1,948 reads
But nowadays, most services are in the cloud. They're not on your servers; they're somewhere else. With most software-as-a-service (SAAS) offerings, you don't have many options to configure connectivity. What if you need data from one SaaS service into another?
2024-01-10
Azure Data Studio (ADS) is a cross platform query tool for SQL Server. Learn how to get started using ADS to work with your SQL Server instances.
2024-01-09 (first published: 2019-03-04)
8,005 reads
In this article, we will examine how to use Azure Data Studio with a git repository for storing code.
2024-01-09 (first published: 2019-05-14)
10,400 reads
By Steve Jones
I haven’t done one of these in awhile, but I saw an article recently...
In last months one of the scenarios where you can use AI has been...
Comments posted to this topic are about the item Creating JSON II
Comments posted to this topic are about the item Engineer Lessons
On SQL Server 2025, what happens when I run this code:
SELECT JSON_OBJECTAGG( N'City':N'Denver' RETURNING JSON) GOSee possible answers