ALTER COLUMN (Public Preview)

Data Warehouse · Public preview · Shipped

Data Warehouse Public preview Shipped
Last Modified: May 06, 2026 Release Date: Q2 2026

Description

This feature enables users to modify the definition of an existing column in a Fabric DW table, specifically allowing changes to the column's data type and size.https://community.fabric.microsoft.com/t5/Fabric-Updates-Blogs/Simplify-Schema-Changes-in-Fabric-Data-Warehouse-with-ALTER/ba-p/5177593

📰 Related Blog Article

Simplify Schema Changes in Fabric Data Warehouse with ALTER COLUMN (Preview)
🔗 blog.fabric.microsoft.com

Change History

  1. 2026-05-06
    Release Status Planned -> Shipped Feature Description This feature enables users to modify the definition of an existing column in a Fabric DW table specifically allowing changes to the column's data type and size -> This feature enables users to modify the definition of an existing column in a Fabric DW table specifically allowing changes to the column's data type and size.https://community.fabric.microsoft.com/t5/Fabric-Updates-Blogs/Simplify-Schema-Changes-in-Fabric-Data-Warehouse-with-ALTER/ba-p/5177593 Name ALTER TABLE ALTER COLUMN (Public Preview) -> ALTER COLUMN (Public Preview)
  2. 2026-03-26
    Release Date 2026-04-30 -> 2026-05-05
  3. 2025-11-18
    Roadmap Item Added
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