Modern Data Warehouse & Reverse ETL
An extension to the Modern Data Warehouse (MDW) that I have heard a bit about lately is called “Reverse ETL”. Before I describe what that is, first I wanted...
2021-04-14 (first published: 2021-04-12)
863 reads
James Serra's Blog
Modern Data Warehouse & Reverse ETL
An extension to the Modern Data Warehouse (MDW) that I have heard a bit about lately is called “Reverse ETL”. Before I describe what that is, first I wanted...
2021-04-12
31 reads
A new WordPress theme and a new job
As you can tell, I have switched to a new WordPress theme for this blog site. I have now been blogging for ten years! It seemed like a good...
2021-03-20
35 reads
A new WordPress theme and a new job
As you can tell, I have switched to a new WordPress theme for this blog site. I have now been blogging for ten years! It seemed like a good...
2021-03-20
9 reads
Microsoft Ignite Announcements 2021
Microsoft Ignite has always announced many new products and new product features, and this year was no exception. Many exciting announcements, and below I list the major data platform and...
2021-03-10 (first published: 2021-03-04)
799 reads
Microsoft Ignite Announcements 2021
Microsoft Ignite has always announced many new products and new product features, and this year was no exception. Many exciting announcements, and below I list the major data platform and...
2021-03-04
9 reads
Power BI and a Star Schema
I sometimes get asked from customers if they should use a star schema or should they use one large single table/flatfile for their dataset in Power BI. The answer...
2021-03-05 (first published: 2021-03-01)
1,042 reads
Power BI and a Star Schema
I sometimes get asked from customers if they should use a star schema or should they use one large single table/flatfile for their dataset in Power BI. The answer...
2021-03-01
19 reads
Data Mesh defined
The two latest trends in emerging data platform architectures are the Data Lakehouse (the subject of my last blog Data Lakehouse defined), and the Data Mesh, the subject of...
2021-02-19 (first published: 2021-02-16)
856 reads
Data Mesh defined
The two latest trends in emerging data platform architectures are the Data Lakehouse (the subject of my last blog Data Lakehouse defined), and the Data Mesh, the subject of...
2021-02-16
18 reads
Blogs
Part 3 of 3: Tuning DiskANN — R, Alpha, L, Beam Width, Recall and Latency
In Part 1, we saw how ‘Vamana’ represents vectors as nodes, connects them with...
Automated SQL Server Benchmarking with HammerDB and Docker: A Complete Testing Framework
I’m excited to announce the release of a new open-source project that fully automates...
T-SQL Snapshot Backups on Availability Group Secondary Replicas
One of my favourite features of SQL Server 2022 was the T-SQL Snapshot Backups....
Forums
Optional Parameter Plan Optimization in SQL Server 2025: Fixing the Kitchen-Sink Search Procedure
Comments posted to this topic are about the item Optional Parameter Plan Optimization in...
AI Experience Gap that we keep talking about
Comments posted to this topic are about the item AI Experience Gap that we...
Question of the Day
ORDER BY alias
There is a table tmp_tab:
CREATE TABLE tmp_tab ( id int, val int );
INSERT INTO tmp_tab VALUES (1, 1), (2, NULL), (3, 3), (4, 4), (5, 5);You want to order the rows ids by the following expression:
ISNULL(val, id) + 1Which of the following queries produces the expected ordering and why? (Select all correct) See possible answers