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Forum Posts

Bilal1
by New Contributor III
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Resolved! Simply writing a dataframe to a CSV file (non-partitioned)

When writing a dataframe in Pyspark to a CSV file, a folder is created and a partitioned CSV file is created. I have then rename this file in order to distribute it my end user.Is there any way I can simply write my data to a CSV file, with the name ...

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Bilal1
New Contributor III
  • 2 kudos

Thanks for confirming that that's the only way

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teng_shin_lim
by New Contributor
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  • 1 replies
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Having issue trying to download a csv file from a website using FireFox Selenium.

Hi, When I clicked on the download button from a website thru Firefox selenium using element.click(), and the download destination is being set as Azure datalake storage. Then, after the download started, those .csv and .csv.part files never gotten m...

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  • 813 Views
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Anonymous
Not applicable
  • 1 kudos

Hi @Brandon Lim​ Great to meet you, and thanks for your question! Let's see if your peers in the community have an answer to your question. Thanks.

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cnjrules
by New Contributor III
  • 1259 Views
  • 3 replies
  • 0 kudos

Resolved! Reference file name when using COPY INTO?

When using the COPY INTO statement is it possible to reference the current file name in the select staement? A generic example is shown below, hoping I can log the file name in the target table.COPY INTO my_table FROM (SELECT key, index, textData, ...

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cnjrules
New Contributor III
  • 0 kudos

Found the info I was looking for on the page below:https://docs.databricks.com/ingestion/file-metadata-column.html

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Rami2023
by New Contributor II
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Resolved! Read CSV file using SQL

Hi, I am trying to reverse engineer to get to the source file for a table. Looking at the query history, I came across SQL string which loads data from file to table, however the code looks little mystery to me. I haven't come across idbfs, Can someb...

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Kaniz
Community Manager
  • 1 kudos

Hi @Ramin Singh​ , You are trying to load data from a CSV file into a table based on the code snippet you provided. The file is located in a directory that uses a " idbfs " system, which might be specific to the yourabase management system or platfor...

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uv
by New Contributor II
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Parquet to csv delta file

Hi Team, I have a parquet file in s3 bucket which is a delta file I am able to read it but I am unable to write it as a csv file.​getting the following error when i am trying to write:​A transaction log for Databricks Delta was found at `s3://path/a...

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Anonymous
Not applicable
  • 2 kudos

Hi @yuvesh kotiala​ Hope all is well! Just wanted to check in if you were able to resolve your issue and would you be happy to share the solution or mark an answer as best? Else please let us know if you need more help. We'd love to hear from you.Tha...

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alxsbn
by New Contributor III
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Resolved! Autloader on CSV file didn't infer well cell with JSON data

Hello ! I playing with autoloader schema inference on a big S3 repo with +300 tables and large CSV files. I'm looking at autoloader with great attention, as it can be a great time saver on our ingestion process (data comes from a transactional DB gen...

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daniel_sahal
Honored Contributor III
  • 2 kudos

PySpark by default is using \ as an escape character. You can change it to "Doc: https://docs.databricks.com/ingestion/auto-loader/options.html#csv-options

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ronaldolopes
by New Contributor
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Resolved! Exporting data from databricks to external csv

I need to export some data from the database to csv which will be downloaded to another application. What would be the procedure for that? I don't have a lot of knowledge in DataBricks and I didn't find much information in the documentation.Thanks.

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AmanSehgal
Honored Contributor III
  • 0 kudos

You can manually download data to your local in CSV from databricks notebook cell and pass it to your another application.Your application can run Databricks notebook inside a workflow via an API that writes data to S3 bucket in CSV and in response y...

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klllmmm
by New Contributor II
  • 2501 Views
  • 3 replies
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Error as no such file when reading CSV file using pandas

I'm trying to read a CSV file saved in data using pandas read_csv function. But it gives No such file error.%fs ls /FileStore/tables/   df= pd.read_csv('/dbfs/FileStore/tables/CREDIT_1.CSV')     df= pd.read_csv('/dbfs:/FileStore/tables/CREDIT_1.CSV')...

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klllmmm
New Contributor II
  • 1 kudos

Thanks to @Werner Stinckens​ for the answer.I understood that I have to use spark to read data from clusters.

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Sarvagna_Mahaka
by New Contributor III
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  • 6 replies
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Resolved! Exporting csv files from Databricks

I'm trying to export a csv file from my Databricks workspace to my laptop.I have followed the below steps. 1.Installed databricks CLI2. Generated Token in Azure Databricks3. databricks configure --token5. Token:xxxxxxxxxxxxxxxxxxxxxxxxxx6. databrick...

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User16871418122
Contributor III
  • 6 kudos

Hi @Sarvagna Mahakali​ There is an easier hack: a) You can save results locally on the disk and create a hyper link for downloading CSV . You can copy the file to this location: dbfs:/FileStore/table1_good_2020_12_18_07_07_19.csvb) Then download with...

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dataslicer
by Contributor
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  • 4 replies
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Resolved! Unable to save Spark Dataframe to driver node's local file system as CSV file

Running Azure Databricks Enterprise DBR 8.3 ML running on a single node, with Python notebook. I have 2 small Spark dataframes that I am able source via credential passthrough reading from ADLSgen2 via `abfss://` method and display the full content ...

  • 5422 Views
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  • 4 kudos
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Dan_Z
Honored Contributor
  • 4 kudos

Modern Spark operates by a design choice to separate storage and compute. So saving a csv to the river's local disk doesn't make sense for a few reasons:the worker nodes don't have access to the driver's disk. They would need to send the data over to...

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Kaniz
by Community Manager
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SreedharVengala
New Contributor III
  • 2 kudos

you can use code provided by Jose in %python by just removing val If you know the schema, it is better to avoid schema inference and pass it to DataFrameReader. Exxample if you have three columns - integer, double and string:from pyspark.sql.types im...

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User16869509994
by New Contributor II
  • 710 Views
  • 1 replies
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  • 710 Views
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Anand_Ladda
Honored Contributor II
  • 1 kudos

Can you provide an example of what exactly do you mean? If the reference is to how "Repos" shows up in the UI, that's more for a Ux convenience. Repos as such are designed to be a container for version controlled notebooks that live in the Git reposi...

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Anand_Ladda
by Honored Contributor II
  • 1600 Views
  • 1 replies
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  • 1600 Views
  • 1 replies
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Anand_Ladda
Honored Contributor II
  • 0 kudos

gzip format is not splittable so the load process is sequential and thus slower. You can either try to split the CSV up into parts, gzip those separately and load them. Alternatively bzip is a splittable zip format that is better to work withOr you c...

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