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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

lazcanja
by New Contributor
  • 2369 Views
  • 0 replies
  • 0 kudos

How to update table location with wasb to abfss

I created a table including location such as: wasb://<container>@<storageaccount>.blob.core.windows.net/foldername We have updated access to storage accounts to use abfssI am trying to execute the following command: alter table mydatabase.mytable set...

  • 2369 Views
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SamCallister
by New Contributor II
  • 24070 Views
  • 8 replies
  • 5 kudos

Dynamic Partition Overwrite for Delta Tables

Spark supports dynamic partition overwrite for parquet tables by setting the config: spark.conf.set("spark.sql.sources.partitionOverwriteMode","dynamic") before writing to a partitioned table. With delta tables is appears you need to manually specif...

  • 24070 Views
  • 8 replies
  • 5 kudos
Latest Reply
alijen
New Contributor II
  • 5 kudos

@SamCallister wrote: Spark supports dynamic partition overwrite for parquet tables by setting the config:spark.conf.set("spark.sql.sources.partitionOverwriteMode","dynamic")before writing to a partitioned table. With delta tables is appears you need ...

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AleksandraFrolo
by New Contributor III
  • 1897 Views
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Web scraping with Databricks

Hello,What is the easiest way to do web scraping in Databricks? Let's imagine that from this link: http://automated.pythonanywhere.com , I need to grab this element "/html/body/div[1]/div/h1[1]" and return a text, how can I do it? Can somebody write ...

  • 1897 Views
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Erik_L
by Contributor II
  • 2643 Views
  • 1 replies
  • 1 kudos

Structured Streaming from TimescaleDB?

I realize that the best practice would be to integrate our service with Kafka as a streaming source for Databricks, but given that the service already stores data into TimescaleDB, how can I stream data from TimescaleDB into DBX? Debezium doesn't wor...

  • 2643 Views
  • 1 replies
  • 1 kudos
Latest Reply
-werners-
Esteemed Contributor III
  • 1 kudos

https://github.com/noctarius/timescaledb-event-streamer/Might help.

  • 1 kudos
DatabricksPract
by New Contributor II
  • 11820 Views
  • 2 replies
  • 2 kudos

Resolved! Get metadata of tables in hive metastore

Hi team,I have a requirement to get the metadata of tables available in databricks hive metastore.Is there any way to get the metadata of all the tables inspite of looping through tables using Describe table_name.As hive metastore doesnot support inf...

  • 11820 Views
  • 2 replies
  • 2 kudos
Latest Reply
DatabricksPract
New Contributor II
  • 2 kudos

@Tharun-Kumar - Thanks for your quick reply, it worked.

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1 More Replies
brickster_2018
by Databricks Employee
  • 4192 Views
  • 2 replies
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Resolved! The driver is temporarily unavailable

My job fails with Driver is temporarily unavailable. Apparently, it's permanently unavailable, because the job is not pausing but failing.

  • 4192 Views
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Latest Reply
Chalki
New Contributor III
  • 0 kudos

I am facing the same issues .  I am writing in batches using a simple for loop. I don't have any collect statements inside the loop. I am rewriting the partitions with partition overwrite dynamic mode in a huge wide delta table - several tb. The incr...

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Kratik
by New Contributor III
  • 11838 Views
  • 10 replies
  • 1 kudos

How to run sql query/notebook present on S3 on databricks cluster?

I have code files (.hql) in s3 which was running on Hive. But now, I need to run them on the Databricks cluster. I can rename the files to .sql and add comment "-- Databricks notebook source" on top of the files to treat them as single cell notebook....

  • 11838 Views
  • 10 replies
  • 1 kudos
Latest Reply
Debayan
Databricks Employee
  • 1 kudos

Hi, Sorry missed seeing the post, did the issue got resolved? 

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9 More Replies
PriyanshuKumar
by New Contributor
  • 3481 Views
  • 1 replies
  • 1 kudos

try_to_timestamp not working as expected

try_to_timestamp should return NULL for following expression but it is throwing error: try_to_timestamp( '2019-02-28 23:59:59.000', 'yyyy-MM-dd HH:mm:ss' ) I understand above expression is wrong as the date format does no...

  • 3481 Views
  • 1 replies
  • 1 kudos
Latest Reply
Kumaran
Databricks Employee
  • 1 kudos

Hi @PriyanshuKumar,Thank you for your question in the Databricks community.The try_to_timestamp() function is designed to attempt to convert a string to timestamp format based on a specified pattern and return null if it fails to do so. However, in t...

  • 1 kudos
Mihai_Cog
by Contributor
  • 9628 Views
  • 5 replies
  • 8 kudos

Resolved! Change Data Feed Databricks

Hello,I am doing some testing with this feature Change Data Feed using Databricks and Pyspark, of course the Delta format and I don't understand something:I created a tableSaved some data insideEnabled Change Data Feed featureApply a merge with a dat...

  • 9628 Views
  • 5 replies
  • 8 kudos
Latest Reply
Tharun-Kumar
Databricks Employee
  • 8 kudos

@Mihai_Cog You have to split your merge statement into 2 parts. (Update and Insert/Delete).MERGE INTO test t USING src s ON s.Id = t.Id and s.date_field = t.date_field and s.fields <> t.fields WHEN MATCHED THEN UPDATE SET * MERGE INTO test t USING sr...

  • 8 kudos
4 More Replies
Smitha1
by Valued Contributor II
  • 9663 Views
  • 10 replies
  • 9 kudos

Resolved! Request for reattempt voucher. Databricks Certified Associate Developer for Apache Spark 3.0 exam

Hi,I gave Databricks Certified Associate Developer for Apache Spark 3.0 exam today but missed by one percent. I got 68.33% and pass is 70%.I am planning to reattempt the exam, could you kindly give me another opportunity and provide reattempt voucher...

  • 9663 Views
  • 10 replies
  • 9 kudos
Latest Reply
shriya
New Contributor II
  • 9 kudos

Hi,I gave Databricks Certified Associate Developer for Apache Spark 3.0 Python exam yesterday but missed by three percent. I got 66.66% and pass is 70%.I am planning to reattempt the exam, could you kindly give me another opportunity and provide reat...

  • 9 kudos
9 More Replies
-werners-
by Esteemed Contributor III
  • 8699 Views
  • 6 replies
  • 12 kudos

Resolved! SSRS (on-prem) on Databricks SQL

Has anybody succeeded in querying Databricks SQL with an on-prem SSRS (so an on-prem Report Server and Report Builder)?I manage to create a connection that works (according to the connection test anyway), but the moment I try to create a dataset on t...

  • 8699 Views
  • 6 replies
  • 12 kudos
Latest Reply
Haider93
New Contributor III
  • 12 kudos

Hi @-werners- , I am able to build connection between Microsoft visual studio and data bricks using Simba Spark ODBC driver. I can query delta tables sitting in Databricks from Microsoft Visual studio (SSRS). However, when I am deploying the report t...

  • 12 kudos
5 More Replies
qasimhassan
by Contributor
  • 1001 Views
  • 0 replies
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Why no Practice Test for Databricks Professional Exam ?

Hi Databricks Team/Community,I'm planning for Databricks Data Engineering Professional Certification but what I have seen is that Databricks don't give any practice test for this professional/advanced certification. I don't know why, If anyone is rea...

  • 1001 Views
  • 0 replies
  • 0 kudos
andresfp14
by New Contributor II
  • 29710 Views
  • 2 replies
  • 0 kudos

Can you delete a widget, or force a value to it?

Hello everyone! Basically, I have a dropdown widget, and at some point I want to change the options available, but still maintain the same selected option. The problems that I find are: - If I want to delete the widget and create a new one, it seems...

0693f000007OoHmAAK
  • 29710 Views
  • 2 replies
  • 0 kudos
Latest Reply
Gim
Contributor
  • 0 kudos

I know this is 5+ years late but I would like to add an answer (or work around) to this in case anyone else was looking for the same solution.What I did was to essentially 'reset' the widget whenever I had to assign (or force) a value to it.#Cell #1 ...

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1 More Replies
Swostiman
by New Contributor II
  • 7829 Views
  • 5 replies
  • 4 kudos

Consuming data from databricks[Hive metastore] sql endpoint using pyspark

I was trying to read some delta data from databricks[Hive metastore] sql endpoint using pyspark, but while doing so I encountered that all the values of the table after fetching are same as the column name.Even when I try to just show the data it giv...

  • 7829 Views
  • 5 replies
  • 4 kudos
Latest Reply
sucan
New Contributor II
  • 4 kudos

Encountered the same issue and downgrading to 2.6.22 helped me resolve this issue.

  • 4 kudos
4 More Replies
pg1
by New Contributor II
  • 2140 Views
  • 2 replies
  • 1 kudos

How to expand display of workspace name in top right window?

How to expand display of workspace name in top right window? My workspace name is little bit longer and it cuts out, could not find a way to expand name window.

  • 2140 Views
  • 2 replies
  • 1 kudos
Latest Reply
Tharun-Kumar
Databricks Employee
  • 1 kudos

@pg1 Is your workspace Unity Catalog enabled?We have identified this behaviour in Unity Catalog enabled workspaces and already working to show up the entire workspace name when we hover over it.

  • 1 kudos
1 More Replies

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