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”.

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Blog Post

Serving layers with a data lake

Data lakes typically have three layers: raw, cleaned, and presentation (also called bronze, silver, and gold if using the medallion architecture popularized by Databricks). I talk about this is...

2023-08-28 (first published: )

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Rebuilding All Indexes

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Question of the Day

Rebuilding All Indexes

I have added a few indexes to one of my tables in SQL Server 2025: 

ALTER TABLE dbo.CustomerContact
ADD CONSTRAINT PK_CustomerContact
    PRIMARY KEY (CustomerID);

-- Create index on CustomerEmail
CREATE INDEX IX_CustomerContact_CustomerEmail
ON dbo.CustomerContact (CustomerEmail);
CREATE INDEX IX_CustomerContact_CustomerEmail
ON dbo.CustomerContact (phone);
I then do this to disable one index: 
alter index IX_CustomerContact_CustomerPhone on dbo.CustomerContact disable
I see this when I check the index status:Index status for CustomerContactI decide to rebuild all indexes with this command: 
ALTER INDEX ALL ON dbo.CustomerContact
After I do this, what will I see for the index status?

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