Traditionally, importing key-value data stores such as Redis into BI, reporting, and ETL tools is problematic, if not impossible. With the CData Drivers, there are several different ways to building a traditional database model to easily work with Redis data in the BI, reporting, ETL, and custom applications of your choice. In this article, we discuss […]
2021-11-12
1,566 reads
Our series of ‘DBAs at work’ blog posts feature conversations with IT leaders and experts about the challenges of managing and monitoring their server estates. Episode 1 features Dennis Heitmann, Database Administrator at Atruvia, which provides IT services for banking clients in Germany.
2021-11-12
993 reads
It’s possible to query blob storage using SQL, but what about performance? In this article, Dennes Torres compares several query methods to see which one performs the best.
2021-11-12
Introduction I have to admit that I love SSMS. It is a great tool, and I felt furious when a colleague mentioned that Azure Data Studio will replace SSMS in the long run. In this new article, we will talk about the main differences between Azure Data Studio and SSMS. We will see if my […]
2021-11-10
24,518 reads
In this article we compare performance differences when splitting comma separated strings using TVPs, TVFs, openjson, string_split and more.
2021-11-10
Learn how to create and maintain a 'data dictionary' for your databases, in JSON format, which you can then use to add and update the table descriptions, whenever you build a new version using Flyway.
2021-11-10
2021-11-08
4,992 reads
APIs require up-to-date and strong documentation, increased security levels, comprehensive testing, routine versioning, and high-reliability to be appropriately utilized. With the CData SSIS Data Flow components you can import and export data from various data sources. However, in some cases the type of operation you need does not fit the SSIS Source or the SSIS Destination model. The […]
2021-11-08
865 reads
Database professionals are spending 1/3 of their time on security tasks each day and say it’s their biggest professional challenge this year. Learn how 2500+ database professionals are reacting to these unprecedented demands in our third database monitoring insights report.
2021-11-08
Tableau is a popular visualization tool used by organizations around the world. In this article Sanil Mhatre demonstrates sentiment analysis with Tableau and Oracle data.
2021-11-08
How can you achieve good enough without compromising the process/product? In the world of...
By Patrick
One of my customers recently wanted to rename each of the SQL audit files...
The post The pros and cons of self-service BI: What every industry leader should...
Comments posted to this topic are about the item What's New for the Microsoft...
Comments posted to this topic are about the item Using Outer Joins
I have this data in a SQL Server 2019 database:
Customer table CustomerID CustomerName 1 Steve 2 Andy 3 Brian 4 Allen 5 Devin 6 Sally OrderHeader table OrderID CustomerID OrderDate 1 1 2024-02-01 2 1 2024-03-01 3 3 2024-04-01 4 4 2024-05-01 6 4 2024-05-01 7 3 2024-06-07 8 2 2024-04-07I want a list of all customers and their order counts for a period of time, including zero orders. If I run this query, how many rows are returned?
SELECT c.CustomerName, COUNT(oh.OrderID) FROM dbo.Customer AS c LEFT JOIN dbo.OrderHeader AS oh ON oh.CustomerID = c.CustomerID WHERE oh.Orderdate > '2024/04/01' GROUP BY c.CustomerNameSee possible answers