Databricks Community

varni · 08-12-2025

ContextMigrating from Azure Databricks (Premium) to AWS Databricks (Premium) in eu‑west‑2 (London) with Unity Catalog attached.On Azure, Databricks Apps are available (Compute → Apps and New → App). (ы)Goal: run the same Streamlit apps on AWS.What we...

varni · 07-11-2025

Hello Databricks Team,I hope you are doing well.I’m working with dbutils.widgets in a Databricks notebook using the Accessed Commands mode, and I have encountered some challenges.Specifically, after detaching and reattaching to the cluster:- the widg...

varni · 07-01-2025

Hello,We’ve started migrating from Azure Databricks (Hive Metastore) to AWS Databricks with Unity Catalog. Our entire codebase was deliberately designed around spark.sql('...') using DML operations (UPDATE, DELETE, MERGE) for two reasons:In many case...

varni · 08-14-2025

[Resolved]. The root cause was that Databricks Apps (including Serverless App) are not available in all AWS regions. My primary workspace was created in eu-west-2 (London), where this feature is not supported.After creating a new workspace in eu-west...

varni · 07-01-2025

[RESOLVED] The issue was caused by the source tables being in Parquet format. After rewriting them as Delta tables, everything worked fine — including DML operations like UPDATE via DataFrame logic. Thanks!

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Databricks Apps On Aws

Widget value not synchronized after detach/reattach

Unity Catalog blocks DML (UPDATE, DELETE) on static Delta tables — unable to use spark.sql

Re: Databricks Apps On Aws

Re: Unity Catalog blocks DML (UPDATE, DELETE) on static Delta tables — unable to use spark.sql