James Serra

James works at Microsoft as a big data and data warehousing solution architect where he has been for most of the last nine years. He is a thought leader in the use and application of Big Data and advanced analytics, including data architectures such as the modern data warehouse, data lakehouse, data fabric, and data mesh. Previously he was an independent consultant working as a Data Warehouse/Business Intelligence architect and developer. He is a prior SQL Server MVP with over 35 years of IT experience. He is a popular blogger (JamesSerra.com) and speaker, having presented at dozens of major events including SQLBits, PASS Summit, Data Summit and the Enterprise Data World conference. He is the author of the book “Deciphering Data Architectures: Choosing Between a Modern Data Warehouse, Data Fabric, Data Lakehouse, and Data Mesh”.

Blog Post

Databricks Delta Lake

Introduced in April 2019, Databricks Delta Lake is, in short, a transactional storage layer that runs on top of cloud storage such as Azure Data Lake Storage (ADLS) Gen2...

2019-10-25 (first published: )

902 reads

Blog Post

Big Data Workshop

A challenge I have with customers who want to get hands-on experience with the Azure products that are found in a modern data warehouse architecture is finding a workshop...

2019-07-30 (first published: )

363 reads

Blog Post

The Microsoft Power Platform

The Microsoft Power Platform consists of three products: Power BI, PowerApps, and Microsoft Flow. I find customers are confused on the use cases of these products and how they...

2019-07-08 (first published: )

311 reads

Blog Post

Common Data Model

The Common Data Model (CDM) is a shared data model that is a place to keep all common data to be shared between applications and data sources.  Another way...

2019-06-20 (first published: )

1,715 reads

Blogs

Post-quantum key exchange – Insurance policy for your packets

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AWS recently added support for Post-Quantum Key Exchange for TLS in Application Load Balancer...

Plan your 2026

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If you don't have a plan, you'll accomplish it. That's not a good thing.

Another Change

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Today Redgate announced that we are partnering with Bregal Sagemount, a growth-focused private equity...

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Forums

Where Your Value Separates You from Others

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Where Your Value Separates You...

Fixing the Error

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Fixing the Error

T-SQL in SQL Server 2025: Encoding Functions

By Steve Jones - SSC Editor

Comments posted to this topic are about the item T-SQL in SQL Server 2025:...

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Question of the Day

Fixing the Error

On SQL Server 2025, I have a database that has this collation: SQL_Latin1_General_CP1_CI_AS. I decide I want to run this code:

SELECT UNISTR('*3041*308A*304C*3068 and good night', '*') AS 'A Classic';
I get this error:Msg 9844, Level 16, State 4, Line 24 The char/varchar input type uses an unsupported collation. Only a UTF8 collation is supported with char/varchar input type in UNISTR function.What is the easiest way to fix this error?

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