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Data Engineering
Join discussions on data engineering best practices, architectures, and optimization strategies within the Databricks Community. Exchange insights and solutions with fellow data engineers.
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Forum Posts

wyzer
by • Contributor II
  • 11068 Views
  • 3 replies
  • 3 kudos

Why database/table names are in lower case ?

Hello,When I run this code :CREATE DATABASE BackOfficeI see the database like this :backofficeWhy everything is in lower case ?Is it possible to configure Databricks in order to keep the real name ?Thanks.

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Hubert-Dudek
Databricks MVP
  • 3 kudos

It is managed by hive metastore as you can put it in different databases is saver this way as some database are Case Sensitive and some not (you can easily test it with standard WHERE syntax).Probably you could change it with some hive settings but i...

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Pavel_Sinkevich
by • New Contributor III
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Feature request: let DABs alert resources load query_text from an external .sql file

Hi everyone,We manage SQL alerts with Declarative Automation Bundles and like having them in version control. One thing we'd like to improve: the alert's SQL query has to be written inline in the YAML resource definition (query_text).The problemOur a...

  • 108 Views
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data_pulse
Contributor
  • 1 kudos

@Pavel_Sinkevich I tested this feature too using  Databricks CLI 0.290.0. The results confirm that referencing standalone .sql files through a native query_file property is not supported in the tested CLI version.Key findings1. query_file is not supp...

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Aamir2028
by • Visitor
  • 27 Views
  • 1 replies
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Salesforce - "Unexpected error occurred" while connecting with Databricks

Hi everyone,I am using Salesforce trail version. I am getting error which shows "Unexpected error occurred" while connecting it with Databricks free edition, However, I already passed the necessary OAuth with the credentials.Please advise what action...

Aamir2028_0-1792767742215.png
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J-Data
Visitor
  • 0 kudos

For what it's worth, I am getting the same error when I try to connect Google Analytics Raw data. I am wondering if this is perhaps a limitation of the Databricks free edition.

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johnb1
by • Contributor
  • 53 Views
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Materialized View with Incremental Refresh - Change Data Feed required on source tables?

Question:To create a materialized view with incremental refresh, is the Delta Lake feature Change Data Feed required on all of the source tables that the materialized view consumes? Or, is it not required for the creation of the materialized view, bu...

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data_pulse
Contributor
  • 0 kudos

@johnb1 I tested this on Databricks with multiple runs to verify whether Change Data Feed (CDF) is required on source Delta tables for incremental Materialized View refresh.I created three source configurations and tested INSERT, UPDATE, and DELETE o...

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indradbxlearn
by • New Contributor II
  • 186 Views
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Feature Request: Cross-job dependencies with business-date awareness

SummaryWorkflows can chain tasks inside one job, but there is no native way to say: “Run job X once per day, after jobs A, B, C, D and E have each completed successfully for the same business date, even though they are independent jobs with their own...

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indradbxlearn
New Contributor II
  • 0 kudos

Thanks @SumeshKashyap and @Jen_Evangelista , this is very helpful. Here is where we’ve landed.Table update trigger on the control table, not the dimension tables. Only dimjob1-5 write to it, so manual and ad hoc loads can’t fire factjob1, and polling...

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dbernstein_tp
by • Contributor II
  • 284 Views
  • 12 replies
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MS Fabric Direct Lake, works with delta tables only?

Lately we started using Direct Lake to use the results of our ingestion pipelines (gold tables) in PBI dashboards. This is working ok but has one annoying and troublesome issue. Which is: the gold tables are the end result of declarative pipelines so...

  • 284 Views
  • 12 replies
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Jen_Evangelista
New Contributor
  • 3 kudos

There's no preview toggle for this, which is why you don't see it in the workspace or account previews. For an MV, Compatibility Mode is set with the two table properties Louis showed, when the MV is created. The docs only document ALTER TABLE for ma...

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Aju_Antony
by • New Contributor
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Clarification on use_describe_as_json_for_relation_metadata and system.information_schema dependency

Hi Databricks Support Team,We are evaluating whether dbt can execute successfully without access to system.information_schema in our environment, due to metadata access restrictions.Our current setup uses:dbt-core: 1.12.3dbt-databricks: 1.12.5Configu...

  • 135 Views
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SumeshKashyap
Valued Contributor II
  • 0 kudos

Hi @Aju_Antony, were you able to try the get_uc_tables_sql override in your POC? Quick way to confirm it works: run dbt run with --debug and check that no query in the log references system.information_schema.If that unblocked you, please click Accep...

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ankit2604
by • New Contributor II
  • 713 Views
  • 14 replies
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Datavault implemention on Databricks

Hi everyone,I'm building a Data Vault 2.0 architecture entirely natively in Databricks from scratch. We have specifically decided not to use dbt.While Raw Vault ingestion is straightforward with Spark/Delta, I'm looking for architectural advice on co...

  • 713 Views
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Louis_Frolio
Databricks Employee
  • 12 kudos

Hello @ankit2604, I took a look at both internal and external documentation and here is what I found. Thanks @balajij8, @Satyasai, @Jen_Evangelista and @data_pulse for doing most of the work here. The shape they've described is right: streaming table...

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harsh120
by • New Contributor III
  • 303 Views
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Table does not support batch scan.

After moving our incremental load jobs from DBR 16.4 (Spark 3.5) to DBR 18 (Spark 4.1.0), they fail with this error: [UNSUPPORTED_FEATURE.TABLE_OPERATION] The feature is not supported: Table `app_dev`.`vw_period` does not support batch scan. Please c...

  • 303 Views
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Louis_Frolio
Databricks Employee
  • 5 kudos

Hello @harsh120, I took a look at both internal and external documentation and here is what I found. Building on @data_pulse and @Jen_Evangelista: RemoteSparkConnectScan is the key clue, and this doesn't look like MAP(), isEmpty(), or ANSI mode being...

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cdn_yyz_yul
by • Valued Contributor
  • 1524 Views
  • 18 replies
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Change data feed from a materialized view

Hi everyone,Trying the CDF on materialized view (declarative pipeline) feature that is currently in Beta.- Configuration:** Verified the MVs (materialized veiws) have: 'delta.enableRowTracking'SHOW TBLPROPERTIES my_mv ('delta.enableRowTracking');  re...

  • 1524 Views
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Louis_Frolio
Databricks Employee
  • 4 kudos

Hello @cdn_yyz_yul, Thanksto @Jen_Evangelista for the pipeline-config versus table-property framing and to @data_pulse for the Free Edition repro. On the property question: I can't point to a doc line, but the evidence says it's expected that pipelin...

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shubham_1507
by • New Contributor
  • 105 Views
  • 3 replies
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Is Genie Ontology Available in Databricks Free Edition?

Hi Community,I wanted to confirm whether Genie Ontology is available in the Databricks Free Edition or if it is exclusive to paid editions.If it is supported in the Free Edition, could someone please guide me on how to access and enable this feature ...

  • 105 Views
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data_pulse
Contributor
  • 2 kudos

@shubham_1507 Can validate this directly in Databricks Free Edition workspace.Open Genie One and ask:“Is Genie Ontology available in this workspace?” I have tested in Free edition workspace as below, In the expanded Thinking steps, Genie invoked sear...

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gowri_databrick
by • Contributor
  • 634 Views
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Using Databricks Asset Bundles and Lakeflow Jobs in a Real Project

Hi everyone,I’m working through Databricks deployment and orchestration concepts and wanted to understand how Databricks Asset Bundles and Lakeflow Jobs fit together.Real-world scenario:Imagine an e-commerce company has a customer data pipeline that ...

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liam-w
Databricks Employee
  • 2 kudos

Hi @gowri_databrick In short, you use the bundle to define what gets deployed and where, and Lakeflow Jobs to control when it runs. (Asset Bundles are now called Declarative Automation Bundles, but the databricks bundle CLI is the same.) How bundles ...

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chirag_nagar
by • New Contributor
  • 10052 Views
  • 13 replies
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Seeking Guidance on Migrating Informatica PowerCenter Workflows to Databricks using Lakebridge

Hi everyone,I hope you're doing well.I'm currently exploring options to migrate a significant number of Informatica PowerCenter workflows and mappings to Databricks. During my research, I came across Lakebridge, especially its integration with BladeB...

  • 10052 Views
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devangpanchal
New Contributor II
  • 2 kudos

Hi,We've helped teams work through this exact decision (Synapse dedicated pool plus Spark ingestion, Fabric-only vs keeping Databricks). A few points that usually settle it:1. Split the decision by workload, not by platform.- T-SQL warehouse workload...

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bunny_9090
by • New Contributor II
  • 1924 Views
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Precision Variance Observed in FLOAT to DOUBLE Data Migration to Delta Tables

Hi Team,We would like to bring to your attention a precision-related variance observed during data migration from our legacy platform into db Delta tables.In the legacy system, several numeric columns are defined using the FLOAT data type. During ing...

  • 1924 Views
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devangpanchal
New Contributor II
  • 1 kudos

Hi @bunny_9090,Steve's answer covers the widening mechanics well. There are two things we check before choosing a fix on legacy-to-Delta migrations, because they can change the root cause completely.1. Confirm what "FLOAT" means in your source engine...

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Datalight
by • Contributor
  • 2200 Views
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Resolved! Design Oracle Fusion SCM to Azure Databricks

Hello Techie,I am planning to migrate All module of Oracle fusion scm data to Azure Databricks.Do we have only option of BICC (Business Intelligence Cloud Connector), OR any other option avaialble.Can anyone please help me with reference architecture...

  • 2200 Views
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DineshBI1234
New Contributor II
  • 1 kudos

The BI Connector writes the Fusion PVO data straight to ADLS Gen2 or any lakehouse/warehouse platform of your choice. Please check out this resource for more info - https://www.biconnector.com/blog/oracle-bicc-integration/ 

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