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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

Trodenn
by New Contributor III
  • 8377 Views
  • 4 replies
  • 1 kudos

How to merge two separate DELTA LIVE TABLE?

So I have two delta live tables. One that is the master table that contains all the prior data, and another table that contains all the new data for that specific day. I want to be able to merge those two table so that the master table contains would...

  • 8377 Views
  • 4 replies
  • 1 kudos
Latest Reply
Ajay-Pandey
Esteemed Contributor III
  • 1 kudos

@Rishabh Pandey​ 

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Mahesh_789
by New Contributor II
  • 958 Views
  • 0 replies
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While accessing the data on recipient side using delta_sharing.load_table_changes_as_spark(), it shows data of all versions.

When I tried to access specific version data and set the arguments value to the specific number, I get all version data.data1 = delta_sharing.load_table_changes_as_spark(table_url, starting_version=1, ending_version=1)data2 = delta_sharing.load_table...

  • 958 Views
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kmckee
by New Contributor II
  • 1232 Views
  • 0 replies
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Trouble Displaying Full Size Images from Spark Dataframe

Hi, I have followed this guide (https://learn.microsoft.com/en-us/azure/databricks/_static/notebooks/image-data-source.html) to successfully load some image data into a spark df and display it as a thumbnail. I would like to display a single image fr...

  • 1232 Views
  • 0 replies
  • 1 kudos
weldermartins
by Honored Contributor
  • 3998 Views
  • 3 replies
  • 6 kudos

Resolved! Function When + Dictionary.

Hey everyone, I'm avoiding repeating the When Function for 12x, so I thought of the dictionary. I don't know if it's a limitation of the Spark function or a Logic error. Does the function allow this concatenation?

image
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Latest Reply
weldermartins
Honored Contributor
  • 6 kudos

Hello everyone, I found this alternative to reduce repeated code.custoDF = (custoDF.withColumn('month', col('Nummes').cast('string')) .replace(months, subset=['month']))

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sfalquier
by New Contributor II
  • 2782 Views
  • 3 replies
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HTTP 403 on git-credentials API

Hi,I am trying to set git credentials for my service principal. I follow the process described here but I get a 403 error when making the POST request to ${DATABRICKS_HOST}/api/2.0/git-credentials with service principal token.By the way, I also canno...

  • 2782 Views
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Latest Reply
Vivian_Wilfred
Databricks Employee
  • 0 kudos

Hi @Sébastien FALQUIER​ it works for me, there are no restrictions. Maybe the PAT token you generated for the service principle got expired. Can you generate a new token and try to run GET/git-credentials API?How are you creating PAT for service prin...

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martcerv
by New Contributor II
  • 3492 Views
  • 4 replies
  • 2 kudos

Cloud provider launch failure

When I want to create a cluster a get this error message:DetailsAWS API error code: InvalidGroup.NotFoundAWS error message: The security group 'sg-0ded75eefd66bf421' does not exist in VPC 'vpc-0ec7da3d5977f6ec9'And when I inspect the security groups ...

  • 3492 Views
  • 4 replies
  • 2 kudos
Latest Reply
AminChad_22427
New Contributor II
  • 2 kudos

Hi, I am running into a similar issue. but in my case, the security has been deleted by mistake.Is there a way to make Databricks recreate the missing group ?@Kaniz Fatma​ , where can the CreateSecurityGroup command be ran ? Does it change the securi...

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sudhanshu1
by New Contributor III
  • 832 Views
  • 0 replies
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Structured Streaming

I need some solution for below problem.We have set of json files which are keep coming to aws s3, these files contains details for a property . please note 1 property can have 10-12 rows in this json file. Attached is sample json file.We need to read...

  • 832 Views
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KVNARK
by Honored Contributor II
  • 3940 Views
  • 4 replies
  • 13 kudos

Resolved! To practice Databricks SQL

Is there any sand box kind of thing where we can do some hands-on on Databricks SQL/run the Note books attaching to the Clusters apart from the free trial provided by Databricks.

  • 3940 Views
  • 4 replies
  • 13 kudos
Latest Reply
Harun
Honored Contributor
  • 13 kudos

Databricks SQL workspace will be available only for Databricks Premium service. If you have Azure Pass subscription, then you can able to get it for practicing it.

  • 13 kudos
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avidex180899
by New Contributor II
  • 13097 Views
  • 3 replies
  • 3 kudos

Resolved! UUID/GUID Datatype in Databricks SQL

Hi all,I am trying to create a table with a GUID column.I have tried using GUID, UUID; but both of them are not working.Can someone help me with the syntax for adding a GUID column?Thanks!

  • 13097 Views
  • 3 replies
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Latest Reply
Aviral-Bhardwaj
Esteemed Contributor III
  • 3 kudos

Hey @Avinash Narasimhan​ , What is the exact problem you are getting can you please share it is working fine for meThanksAviral Bhardwaj

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2 More Replies
Jyo777
by Contributor
  • 1842 Views
  • 4 replies
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Hi, Has anyone cleared professional DE? please advise on professional data engineer exam. will advance DE learning path be sufficient? Or need to fol...

Hi,Has anyone cleared professional DE? please advise on professional data engineer exam. will advance DE learning path be sufficient? Or need to follow some other resource as well.

  • 1842 Views
  • 4 replies
  • 0 kudos
Latest Reply
youssefmrini
Databricks Employee
  • 0 kudos

Hello Have a look at this link http://msdatalab.net/how-to-pass-the-professional-databricks-data-engineering/

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architect
by New Contributor
  • 1854 Views
  • 1 replies
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Does Databricks provide a mechanism to have rate limiting for receivers?

from pyspark.sql import SparkSession   scala_version = '2.12' spark_version = '3.3.0'   packages = [ f'org.apache.spark:spark-sql-kafka-0-10_{scala_version}:{spark_version}', 'org.apache.kafka:kafka-clients:3.2.1' ]   spark = SparkSession.bui...

  • 1854 Views
  • 1 replies
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Latest Reply
Rajani
Contributor II
  • 0 kudos

hi @Software Architect​  i dont think so

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Pranjan
by New Contributor II
  • 3669 Views
  • 7 replies
  • 1 kudos

Resolved! Badge Not Received for - Databricks Lakehouse Fundamentals Accreditation (V2)

Hi TeamI have passed the Databricks Lakehouse Fundamentals Accreditation (V2) on Dec 8th.Still have not received the Badge in credentials or any email of that kind.Please have a look.@Kaniz Fatma​ â€‹ 

  • 3669 Views
  • 7 replies
  • 1 kudos
Latest Reply
Tromen026
New Contributor II
  • 1 kudos

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  • 1 kudos
6 More Replies
Smitha1
by Valued Contributor II
  • 2448 Views
  • 3 replies
  • 2 kudos

December exam free voucher for Databricks Certified Associate Developer for Apache Spark 3.0 exam.

Dear @Vidula Khanna​  Hope you're having great day. This is of HIGH priority for me, I've to schedule exam in December before slots are full.I gave Databricks Certified Associate Developer for Apache Spark 3.0 exam on 30th Nov but missed by one perc...

  • 2448 Views
  • 3 replies
  • 2 kudos
Latest Reply
Aviral-Bhardwaj
Esteemed Contributor III
  • 2 kudos

hey @Smitha Nelapati​ ,you can attend the below webinars and get the 75% off in Jan ​ 

  • 2 kudos
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KasimData
by New Contributor III
  • 3398 Views
  • 3 replies
  • 6 kudos

Unable to signup to a Databricks community edition account

As you can see, I get the error underneath the big orange button. This is after I click the link at the bottom to try the community edition. I have tried a couple of locations since I am currently based in South Korea but I am actually from the UK. T...

image.png
  • 3398 Views
  • 3 replies
  • 6 kudos
Latest Reply
Anonymous
Not applicable
  • 6 kudos

Hi @Muhammad Ali​ Just a friendly follow-up. Are you able to log in to your Community-Edition account? If yes, then mark the answer as best or if you need further assistance kindly let me know. Thanks and Regards

  • 6 kudos
2 More Replies
sudhanshu1
by New Contributor III
  • 3096 Views
  • 1 replies
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Write streaming output to DynamoDB

Hi All,I am trying to write a streaming DF into dynamoDB with below code.tumbling_df.writeStream \  .format("org.apache.spark.sql.execution.streaming.sinks.DynamoDBSinkProvider") \  .option("region", "eu-west-2") \  .option("tableName", "PythonForeac...

  • 3096 Views
  • 1 replies
  • 0 kudos
Latest Reply
LandanG
Databricks Employee
  • 0 kudos

Hi @SUDHANSHU RAJ​ ,I can't seem to find much on the "DynamoDBSinkProvider" source. Have you checked out the link for the streaming to DynamoDB documentation?

  • 0 kudos

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