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elgeo
by • Valued Contributor II
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Resolved! Αdd columns delta table

Hello. Do you know if you can add columns at a specific position (before / after a column) by altering a delta table ?

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-werners-
Esteemed Contributor III
  • 1 kudos

yes, using the FIRST or AFTER parameter.https://docs.databricks.com/en/sql/language-manual/sql-ref-syntax-ddl-alter-table-manage-column.html#add-column

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memo
by • New Contributor II
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Pivot on multiple columns

I want to pass multiple column as argument to pivot a dataframe  in pyspark pivot likemydf.groupBy("id").pivot("day","city").agg(F.sum("price").alias("price"),F.sum("units").alias("units")).show(). One way I found is to create multiple df with differ...

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rudyevers
by • New Contributor III
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Unity catalog - external table lastUpdateversion

We are currently upgrading our Lakehouse to use the Unity Catalog benefits. We will mostly use external tables because alle our DETLA tables are already stored in Azure Storage. I try to figure out how to update the table property "delta.lastUpdateve...

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-werners-
Esteemed Contributor III
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I am in the same boat.That is the reason I opted to use managed tables instead.  OK; it means migrating tables and changing notebooks but besides not having to struggle with external tables, you also get something in return (liquid clustering f.e.).

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Phani1
by • Databricks MVP
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checklist for : process to move and deploy in the prod

Hi Team,Could you please help me with best practices to move and deploy (code, workspace, notebooks, etc) in the prod?Regards,Phanindra

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-werners-
Esteemed Contributor III
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the most important is to use Repos!Link your workspace with git and use feature branches and pull requests to promote code/notebooks.Check the databricks docs on Repos.  If you have further questions; shoot.

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Phani1
by • Databricks MVP
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Databricks setup/deployment checklist/best practices

Hi Team, could you please share or guide us on any checklist/best practices for Databricks setup/deployment?

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icyflame92
New Contributor II
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Hi @Phani1 , here are some best practices https://github.com/Azure/AzureDatabricksBestPractices/tree/master and you could take these points as your "checklist".Choose the right Databricks Workspace:Decide on the appropriate Azure region for your Data...

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rpl
by • Contributor
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Resolved! Read file with Delta Live Tables from external location (Unity Catalog)

As far as I understand, Delta Live Tables should now support reading data from an external location, but I can’t get it to work. I’ve added an ADLS container to Unity Catalog as an external location. There’s a folder in the container containing an ex...

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Delta Live Tables
Unity Catalog
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rpl
Contributor
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I misspelled the folder name; I got it working now  The error message could have been more informative

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Shivam_Patil
by • New Contributor II
  • 4167 Views
  • 2 replies
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Databricks Certified Associate Developer for Apache Spark 3.0 - Python sample paper

I am trying to get sample papers for Databricks Certified Associate Developer for Apache Spark 3.0 - Python before I attempt my exam 

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Cert-Bricks
Databricks Employee
  • 1 kudos

Hi, there, This exam has a Practice Exam, I think that's what you are looking for. 

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Phani1
by • Databricks MVP
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Infrastructure reverse engineering

How can we do infrastructure reverse engineering in Databricks? Any kind of solution accelerator or tool that can scan through the environment and identify the solutions /components that are used in the Databricks environment and the complexity withi...

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reverse engineering
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Phani1
Databricks MVP
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Hi Team,Could you please help us on this.Regards,Phanindra

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osalawu
by • New Contributor
  • 2723 Views
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Got Suspended while taking Databricks Certified Data Analyst Associate Assessment

Hi Team, What I experienced today from the proctor was so not nice, my experience with proctor today was very frustrating and pathetic, I was taking my assessment today 11-26-2023, 2pm, I was already on between question 22nd to 25th when my assessmen...

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Cert-Team
Databricks Employee
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@osalawu Sorry to hear you had an issue with your exam. In order to protect your Webassessor account information, please file a ticket with our support team. Please include your Webassessor login ID, the exam, and a couple of dates and times that wil...

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harry546
by • New Contributor III
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Unable to log metrics to table/driver using spark StreamingQueryListener

Hi Everyone,Hope everyone is enjoying their holiday time.I have spark streaming job (copy activity from location A to location B) and a Query Listener and attached to the streaming job.As mentioned over the attachments I can see numInputRows gets log...

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Streamingmetrics
StreamingQueryListener
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Klusener
by • Contributor
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Arguments parsing in Databricks python jobs

On Databricks created a job task with task type as Python script from s3. However, when arguments are passed via Parameters option, running into unrecognized arguments' error.Code in s3 file:import argparse def parse_arguments(): parser = argpar...

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MiroFuoli
by • New Contributor II
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Unity Catalog - Limited Options for Connection Objects

I’m currently trying to create a Foreign Catalog based on a Connection object of type SQLSERVER. This would allow me to directly access our on-premises MS SQL database from within Azure Databricks using Unity Catalog.As I’m part of a large organizati...

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Connection
Foreign Catalog
SQL warehouse
Unity Catalog
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kelvinlui1234
by • New Contributor
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Can not able to connect to ADLS Gen2 using ABFSS (urgent)

Hi all,I was having an error when trying to connect to azure data lake. "SSLHandshakeExceptio" Please see the detail below.Please help!

MicrosoftTeams-image (3).png
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ChishGayl
New Contributor II
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The error message you provided, "SSLHandshakeExceptio," indicates that there is a problem with the SSL handshake between your system and the Azure Data Lake. This issue can be caused by various factors, such as incorrect settings, network issues, or ...

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eallain
by • New Contributor
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Structured Streaming - Kafka Offset Management

In my team, we decided to move from spark streaming to structured streaming, mainly cause it says that it's legacy and we want to benefit new features from structured streaming.However we have an issue with committing offsets.Previously on spark stre...

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