06. Databricks | Pyspark| Spark Reader: Read CSV File

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#ReadCSV, #DatabricksCSVFile, #DataframeCSV
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15 окт 2024

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Комментарии : 92

@sowjanyagvs7780 Месяц назад

am trying to grab an opportunity on data bricks, glad i found your channel. Your explanations are far better than these trainings

@rajasdataengineering7585 Месяц назад

Welcome aboard! Thank you

@gulsahtanay2341 7 месяцев назад

Explanations couldn't be better! I'm very happy that I found your work. Thank you Raja!

@rajasdataengineering7585 7 месяцев назад

Hope it helps you learn the concepts! Thanks

@patiltushar_ 6 месяцев назад

Sir, you way of teaching is fabulous. Earlier i learnt spark, but your teaching is better than that.

@rajasdataengineering7585 6 месяцев назад

Thanks and welcome! Glad to hear that

@abhinavsingh1173 Год назад

Your course it best. But problem with you course is that you are not attching the github link for your sample data and code. Irequest you as your audience please do this. Thanks

@shivayogihiremath4785 Год назад

Superb! Concise content, properly explained! Thank you very much for sharing your knowledge! Please keep up the good work!

@omprakashreddy4230 2 года назад

what an explanation sir ji !!! Please continue making videos on adb. Thanks a lot !!

@rajasdataengineering7585 2 года назад

Thanks Omprakash. Sure, will post more videos

@AtilNL 4 месяца назад

To the point explanation. Thank you sir! Have you tried to import using sql from a sharepoint location?

@rajasdataengineering7585 4 месяца назад

No, I haven't tried from SharePoint

@nurullahsirca8819 4 месяца назад

thank you for your great explanation. I love it. How can I reach the data and code snippets? where do you share them?

@kketanbhaalerao Год назад

Very Good Explanation!! really great >> Can anyone please share those csv file/ link. Thanks in advance.

@deepanshuaggarwal7042 3 месяца назад

Can you please explain in the video why these many job and stages are created. To understand internal working of spark is very necessary for optimisation purpose

@Ustaad_Phani Месяц назад

Nice explanation sir

@rajasdataengineering7585 Месяц назад

Thank you! Keep watching

@ramsrihari1710 2 года назад

Hi Raja, Nice video.. quick questions.. What if I want to override the existing schema? Also if we add schema in the notebook, will it not be created over and over whenever the notebook is executed? Is there a way to have it executed one time?

@battulasuresh9306 2 года назад

Please acknowledge This will help to lot of people All videos are in series or not?

@rajasdataengineering7585 2 года назад

Yes all videos are in series

@lalitsalunkhe9422 2 месяца назад

Where can I find the datasets used in this demo? is there any github repo you can share?

@prasenjit476 Год назад

Your videos are lifesavers .. !!

@rajasdataengineering7585 Год назад

Thank you

@MrTejasreddy Год назад

Hi raja really enjoyed u r content information is very clear and clean explanation...one of my frd refered u r channel..really nice...but i noticed that pyspark playlist some off the videos are missed...if possible pls check on it..thanks in advance.

@rajasdataengineering7585 Год назад

Hi Tejas, thank you. Few videos are related to azure synapse analytics. So they might not be part of Pyspark playlist

@VinodKumar-lg3bu Год назад

Neat explanation to the point ,thanks for sharing

@rajasdataengineering7585 Год назад

Glad it was helpful! You are welcome

@subhashkamale386 2 года назад

Hi Raja...I hav some doubt..I wanted to read and display a particular column in data frame...could you please tell me which command should I use... 1. To read single column in data frame 2. To read multiple columns in data frame

@rajasdataengineering7585 2 года назад

Hi Subhash, you can use select command in dataframe to read specific columns

@subhashkamale386 2 года назад

@@rajasdataengineering7585 could you pls send me the command...I am giving different sytaxes but getting error...I am giving below command df.select(column name)

@rajasdataengineering7585 2 года назад

You can give df.select(df.column_name) There are different approaches to refer a column in dataframe. We can prefix dataframe name in front of each column in this method. You can try this method and let me know if still any error

@subhashkamale386 2 года назад

@@rajasdataengineering7585 ok Raj..I am trying this in spark data bricks...will let you know if it is working fine..thanks for ur response

@rajasdataengineering7585 2 года назад

Welcome

@Jaipreksha Год назад

Excellent explanation. ❤❤

@rajasdataengineering7585 Год назад

Glad it was helpful!

@NikhilGosavi-go7be Месяц назад

done

@battulasuresh9306 2 года назад

Raja Sir, hope these videos all are in series

@rajasdataengineering7585 2 года назад

Yes all videos are in series

@himanshubhat3252 11 месяцев назад

Hi Raja, I have a query, that while writing data to csv format, the csv file contains the last line as blank/empty, ( Note : data is ok, but seems last line blank/empty is the default nature of spark ) Is there any way to remove that last blank line while writing the csv file.

@rajasdataengineering7585 11 месяцев назад

Usually it doesn't create empty line. There should be specific reason in your use case. Need to analyse more to understand the problem. Using python code, we can remove last line of a file.

@himanshubhat3252 11 месяцев назад

@@rajasdataengineering7585 I tried writing csv file using PySpark on Databricks, when i downloaded the file on my system and tried to open it using Notepad++, it shows the last line as blank / empty

@DillipBarad-f1m 5 месяцев назад

Sir, Can we get practice notebook?share with us?

@patiltushar_ 6 месяцев назад

Sir, could you share all those datasets used with us for practice purpose, it will be helpful for us.

@upendrakuraku605 2 года назад

Hi bro , it was nice explanation..👍 Can you please help on below points points to cover in Demo : how to read CSV, TSV, Parquet, Json, Avro file formats, how to write back, how you can add unit tests to check transformation steps outputs, how to read DAG, how to work with Delta tables, how to create clusters

@rajasdataengineering7585 2 года назад

Sure Upendra, I shall cover all these topics

@upendrakuraku605 2 года назад

@@rajasdataengineering7585 day after tomorrow I have to give demo on this can you please solve this as soon as possible 🙏

@shahabshirazi6441 2 года назад

Thank you very much! very helpful!

@rajasdataengineering7585 2 года назад

Thanks for your comment

@sumitchandwani9970 Год назад

Awesome

@rajasdataengineering7585 Год назад

Thanks!

@sravankumar1767 3 года назад

Nice explanation bro.. simply superb

@ravisamal3533 Год назад

nice explanation!!!!!!!!!

@rajasdataengineering7585 Год назад

Glad you liked it!

@SurajKumar-hb7oc Год назад

What is the solution If I am reading two files with different column names and different number of columns with a single command? Because I am finding inappropriate output. Please...

@Aspvillagetata Год назад

Hi bro I have some facing issues reading all CSV files and the same all files how to write delta format finally. Finally how delta tables access user view in table format?

@rajasdataengineering7585 Год назад

Hi Pinjari, you can keep all CSV files under a folder and create a dataframe by Spark reader. Then write that dataframe into some other folder in delta format. Delta format is actually parquet file internally. After creating delta table as above, you can use SQL language to do any analytics

@pcchadra Год назад

when I am runing schema_alternate in ADB notebook its throwing error [PARSE_SYNTAX_ERROR] Syntax error at or near 'string'.(line 1, pos 24) am i missing something

@KumarRaghavendra-u9l Год назад

can you able send those Csv files. i will try in my system.

@sachinchandanshiv7578 Год назад

Hi Sir, Can you please help in understanding the .egg and .zip files we use in --py-files while spark-submit job. Thanks in advance 🙏

@areeshkumar-n5e 7 месяцев назад

can you provide sample data as well

@hkpeaks Год назад

What is time required if loading billions of rows?

@rajasdataengineering7585 Год назад

It is depending on many parameters. One of the important parameter is your cluster configuration

@hkpeaks Год назад

@@rajasdataengineering7585 My desktop PC can process a 250GB Seven billion-row csv ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-1NV0wkGjwoQ.html (for this use case, 1 billion-row/minute)

@sk34890 9 месяцев назад

Hi Raja where can we access files for practice

@keshavofficial4542 Год назад

hi bro, how can i find those csv files?

@البداية-ذ1ذ 2 года назад

Can you mention full projects done by pyspark

@ANKITRAJ-ut1zo Год назад

could you provide the sample data

@suman3316 3 года назад

please upload the github link of these files also..

@NetNet-sn3nd 19 дней назад

Can you share this CSV file in drive for practice

@vinoda3480 2 месяца назад

can i get files which your are worked for demo

@4abdoulaye Год назад

What happen if you read multiple files that do not have same schema?

@rajasdataengineering7585 Год назад

The rows which don't have same schema will go to corrupted record

@4abdoulaye Год назад

@@rajasdataengineering7585 Thanks sir. 😎❤

@rajasdataengineering7585 Год назад

Welcome

@SPatel-wn7vk 6 месяцев назад

please provide ideas to make project using Apache Spark

@tripathidipak 9 месяцев назад

Could you please share the sample input files.

@vamsi.reddy1100 Год назад

aa intro sound theesivesi manchi pani chesav anna

@surajpoojari5182 8 месяцев назад

I am not able to create a folder in pyspark community edition in DBFS File system please tell me how to do it and not able to delete existing files

@rajasdataengineering7585 8 месяцев назад

You can use dbutil command

@bashask2121 3 года назад

Can you please provide sample data in the video description

@rajasdataengineering7585 3 года назад

Sure Basha, will provide the sample data

@varun8952 2 года назад

@@rajasdataengineering7585 , Thanks for sharing the video, is there any GIT link with the data sets and the files you used in the tutorial? If so, could you please share?

@dataengineerazure2983 2 года назад

@@rajasdataengineering7585 Please provide sample data. Thank you

@ANJALISINGH-nr6nk 8 месяцев назад

Can you please share these files with us?

@shaulahmed4986 8 месяцев назад

same request for me as well

@dinsan4044 Год назад

Hi, Could you please create a video to combine below 3 csv data files into one data frame dynamically File name: Class_01.csv StudentID Student Name Gender Subject B Subject C Subject D 1 Balbinder Male 91 56 65 2 Sushma Female 90 60 70 3 Simon Male 75 67 89 4 Banita Female 52 65 73 5 Anita Female 78 92 57 File name: Class_02.csv StudentID Student Name Gender Subject A Subject B Subject C Subject E 1 Richard Male 50 55 64 66 2 Sam Male 44 67 84 72 3 Rohan Male 67 54 75 96 4 Reshma Female 64 83 46 78 5 Kamal Male 78 89 91 90 File name: Class_03.csv StudentID Student Name Gender Subject A Subject D Subject E 1 Mohan Male 70 39 45 2 Sohan Male 56 73 80 3 shyam Male 60 50 55 4 Radha Female 75 80 72 5 Kirthi Female 60 50 55

@SurajKumar-hb7oc Год назад

I am writing code for the same data but find inappropriate output. What is the solution ?