NOSQL and RDBMSs
NOSQL and RDBMS are evolving and absorbing ideas from each other. Is this necessarily a good thing? Perhaps we should think again
Power BI Treemap Chart Step-by-Step Tutorial
Microsoft Power BI Desktop provides a wide variety of visuals to its users. Sometimes, one wants to conduct a comparative analysis, a simple way to explore the relationship between the data categories within a set hierarchy. Hence, when a decision revolves around understanding the relationship of each element, this visual can provide an insightful analysis. This article will highlight all the steps to create a treemap chart in Power BI Desktop.
Memory Grant Feedback Persistence in SQL Server 2022
By using input from real memory consumption during query execution, Memory Grant input Persistence in SQL Server 2022 is a potent feature that helps optimize query performance. In order to improve the accuracy of memory grant calculations for subsequent executions of the same or comparable queries, SQL Server gathers and stores this information.
PostgreSQL is Now Faster than Pinecone, 75% Cheaper, with New Open Source Extensions
Two new open-source extensions from Timescale make PostgreSQL even better for AI applications, unlocking large-scale, high-performance AI use cases previously only achievable with specialized vector databases like Pinecone.
What Write Ahead Logging Is and Why It Matters
Kendra Little talks about write ahead logging in SQL Server, one of the basic concepts that developers and DBAs should understand.
Snake draft sorting in SQL Server, part 4
In the previous posts in this series (part 1, part 2, part 3), I described how I have optimized a long-running set of routines by processing databases, tables, and even subsets of tables in parallel. This leads to many separate jobs that all kick off at roughly the same time
How to Set Up Microsoft Fabric Database Mirroring for Azure Cosmos DB
This article shows how to configure database mirroring from CosmosDB to Microsoft Fabric.
How to Sort String Date Values on a Power BI Slicer Visual
In this article, we look at how to build a slicer visual in Power BI and how to create a custom sort order for the slicer values.
Is Perfect Software Attainable?
I was in a social media discussion the other day where someone said “Perfection isn’t real, but progress is.” This started me thinking, is there really no perfection? Can you not actually create a piece of software that is perfect? Of course you can. As long as your requirements are perfect, and the code does […]
Blogs
Free webinar – Tackling the Gaps and Islands Problem with T-SQL Window Functions
I’m hosting a free webinar at MSSQLTips.com at the 19th of December 2024, 6PM...
Counting Groups with Window Functions: #SQLNewBlogger
By Steve Jones
I looked at row_number() in a previous post. Now I want to build on...
The query processor ran out of internal resources and could not produce a query plan – When You’ve Managed to Confuse SQL With a Crazy IN Clause.
Recently I received a cry for help over Teams. The issue was that an...
Forums
How to determine if a DB is currently being used
Hi - I'm looking for advice regarding the best & quickest way to establish...
Data cleansing/conversion tool HPE
Hello. I am looking for a tool Data cleansing/conversion, was recommended HPE any...
System views in a contained availability group
I have a query that runs in a job to check on orphaned users....
Question of the Day
The LAGging NULL
I have this data in a SQL Server 2022 table:
player yearid team HR Alex Rodriguez 2012 NYY 18 Alex Rodriguez 2013 NYY 7 Alex Rodriguez 2014 NYY NULL Alex Rodriguez 2015 NYY 12 Alex Rodriguez 2016 NYY 9If I run this code, what are the results returned in the hrgrowth column?
SELECT player , yearid , hr , hr - LAG (hr, 1, 0) IGNORE NULLS OVER (ORDER BY yearid) AS hrgrowth FROM dbo.playerstats;See possible answers