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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

DK03
by Contributor
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Latest Reply
Anonymous
Not applicable
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Hi @Deepak Kini​ Thank you for posting your question in our community! We are happy to assist you.To help us provide you with the most accurate information, could you please take a moment to review the responses and select the one that best answers y...

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Hubert-Dudek
by Esteemed Contributor III
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Databricks marketplace is here. With Databricks Marketplace, you can easily browse and discover data that suits your needs and get instant access with...

Databricks marketplace is here. With Databricks Marketplace, you can easily browse and discover data that suits your needs and get instant access with Delta Sharing. Once you find a dataset you like, you can add it to your Databricks catalog. 

market1 market2 market3
  • 2079 Views
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Zara
by New Contributor II
  • 2591 Views
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loading incremental data

I want to load incremental data to the delta live table, I wrote function to load data for 10 tables, every time that I run the pipe line, some tables are empty and have a schema, and when I run again, the other tables are empty and the previous tabl...

  • 2591 Views
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Annapurna_Hiriy
Databricks Employee
  • 3 kudos

@zahra Jalilpour​ How the DLT tables and views are updated depends on the update type:Refresh all: All live tables are updated to reflect the current state of their input data sources. For all streaming tables, new rows are appended to the table.Full...

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Krish1
by New Contributor II
  • 10552 Views
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  • 2 kudos

Deltalkake vs Delta table

Can somebody give me good definition of delta lake vs delta table? What are the use cases of each, similarities and differences? Sorry I’m new to databricks ans trying to learn.

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Annapurna_Hiriy
Databricks Employee
  • 2 kudos

Delta Lake and Delta table are related concepts in the Apache Delta Lake project. which extends Apache Spark with ACID (Atomicity, Consistency, Isolation, Durability) capabilities for data lakes. Delta Lake provides a storage layer that enables trans...

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Vishal09k
by New Contributor II
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Display Command Not showing the Result, Rather giving the Dataframe Schema

Display Command Not showing the Result, Rather giving the Dataframe Schema 

image image
  • 3527 Views
  • 1 replies
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Rishabh-Pandey
Esteemed Contributor
  • 3 kudos

hey ,can you try you sql query with this methodselect * from (your sql query )

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YSF
by New Contributor III
  • 1782 Views
  • 1 replies
  • 1 kudos

Delta Live Table & Autoloader adding a non-existent column

I'm trying to setup autoloader to read some csv files. I tried with both autoloader with the DLT decorator as well as just autoloader by itself. The first column of the data is called "run_id", when I do a spark.read.csv() directly on the file it com...

  • 1782 Views
  • 1 replies
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Rishabh-Pandey
Esteemed Contributor
  • 1 kudos

can you attach the exact output so that I can have a look on that .

  • 1 kudos
YSF
by New Contributor III
  • 1210 Views
  • 1 replies
  • 1 kudos

Any elegant pattern for Autoloader/DLT development?

Does anyone have a workflow or pattern that works for developing with autoloader/DLT? I'm still new to but the fact that while testing it's creating checkpoints using schema locations makes it really tricky to develop with and hammer out a working ve...

  • 1210 Views
  • 1 replies
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Rishabh-Pandey
Esteemed Contributor
  • 1 kudos

what basically you are refering here as pattern .

  • 1 kudos
Nishin
by New Contributor
  • 4517 Views
  • 2 replies
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Error in SQL statement: SparkException: Table Access Control is not enabled on this cluster.

Hi Experts,Am using 'DataScience and Engineering' Workspace in Azure databricks and want to test 'table access control' on legacy Hive metastore on cluster.i did all what is mentioned in the link 'https://learn.microsoft.com/en-us/azure/databricks/da...

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  • 4517 Views
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Anonymous
Not applicable
  • 0 kudos

Hi @nishin kumar​ Hope everything is going great.Just wanted to check in if you were able to resolve your issue. If yes, would you be happy to mark an answer as best so that other members can find the solution more quickly? If not, please tell us so ...

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Anuragranjeet
by New Contributor II
  • 3668 Views
  • 5 replies
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docs.databricks.com

I want to generate a personal access token on a service principal. I generated a service principal in Azure active directory and using Azure devops pipeline, I got it added to databricks workspace- where I am a work space administrator. After adding ...

  • 3668 Views
  • 5 replies
  • 2 kudos
Latest Reply
Anonymous
Not applicable
  • 2 kudos

Hi @Anurag Ranjeet​ Thank you for posting your question in our community! We are happy to assist you.To help us provide you with the most accurate information, could you please take a moment to review the responses and select the one that best answer...

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joao_vnb
by New Contributor III
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  • 6364 Views
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Latest Reply
Anonymous
Not applicable
  • 0 kudos

Hi @joao vnb​ Hope everything is going great.Just wanted to check in if you were able to resolve your issue. If yes, would you be happy to mark an answer as best so that other members can find the solution more quickly? If not, please tell us so we c...

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Thanapat_S
by Contributor
  • 4543 Views
  • 2 replies
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Resolved! Table access control is deprecated in Databricks Runtime for Machine Learning

After reviewing this Deprecations, I discovered that Table Access Control is not supported in Databricks Runtime for Machine Learning.I want to understand why table access control is not designed for ML runtime. Is there any reason behind this?

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  • 4543 Views
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Anonymous
Not applicable
  • 0 kudos

@Thanapat Sontayasara​ Table Access Control (TAC) is a feature in Databricks that allows you to restrict access to specific tables in your workspace based on user or group identity.According to the Databricks documentation, TAC is not supported in th...

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Prashant777
by New Contributor II
  • 2552 Views
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Not able to merge Databricks cluster delta tables(location Abfs) with PowerBi for analytics Purpose

Hi everyone .. i have an issue while connecting azure  Databricks cluster delta tables(location Abfs) with PowerBi for analytics Purpose. but after succesfully linking cluster using Server Hostname and HTTP Path with powerbi is showing an error:-Data...

Error
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Latest Reply
-werners-
Esteemed Contributor III
  • 0 kudos

Did you use the partner connect?Makes the connection pretty easy.

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kll
by New Contributor III
  • 8741 Views
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AttributeError: module 'pyspark.dbutils' has no attribute 'fs'

`AttributeError` when attempting to transfer files from `dbfs` filestore in DataBricks to a local directory.  import pyspark.dbutils as pdbutils   pdbutils.fs.cp("/dbfs/Data/file1.csv", "/Users/Downloads/")   Traceback (most recent call last):   ...

  • 8741 Views
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Anonymous
Not applicable
  • 0 kudos

Hi @Keval Shah​ Thank you for posting your question in our community! We are happy to assist you.To help us provide you with the most accurate information, could you please take a moment to review the responses and select the one that best answers yo...

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CDICSteph
by New Contributor
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Need pattern for loading a million small XML files

Hi, looking for the right solution pattern for this scenario: We have millions of relatively small XML files (currently sitting in ADLS) that we have to load into delta lake. Each XML file has to be read, parsed, and pivoted before writing to a delta...

  • 3345 Views
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Anonymous
Not applicable
  • 0 kudos

Hi @Steph Swierenga​ Thank you for posting your question in our community! We are happy to assist you.To help us provide you with the most accurate information, could you please take a moment to review the responses and select the one that best answe...

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Krish1
by New Contributor II
  • 9866 Views
  • 4 replies
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Error while mounting ADLS in python using AccountKey

I'm using the below code using Account key to mount ADLS in python but running into error:shaded.databricks.org.apache.hadoop.fs.azure.AzureException: java.lang.IllegalArgumentException: The String is not a valid Base64-encoded string. Can you pleas...

  • 9866 Views
  • 4 replies
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Latest Reply
Anonymous
Not applicable
  • 0 kudos

Hi @Krish Lam​ Thank you for posting your question in our community! We are happy to assist you.To help us provide you with the most accurate information, could you please take a moment to review the responses and select the one that best answers you...

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