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114. Databricks | Pyspark| Performance Optimization: Re-order Columns in Delta Table 

Raja's Data Engineering
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Azure Databricks Learning: Delta Lake: How to re-order columns of a delta table?
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Re-ordering tables columns is one of the most common requirement in database and data warehousing concepts. It is also improving performance in Databricks delta lake. To know more about it, watch this video
• 114. Databricks | Pysp...
#Deltalake #DataSkipping, #DeltaSkipping, #ReorderDeltaColumns, # RepositionDeltaColumns #SparkDevelopment,#DatabricksDevelopment, #DatabricksPyspark,#PysparkTips, #DatabricksTutorial, #AzureDatabricks, #Databricks, #Databricksforbeginners,#datascientists, #datasciencecommunity,#bigdataengineers,#machinelearningengineers
Delta Lake Internals: • 52. Databricks| Pyspar...
Z-ordering: • 66. Databricks | Pyspa...

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4 сен 2023

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Комментарии : 22   
@SriRamTrading
@SriRamTrading Месяц назад
It's good and new for me as per my experience but here I think how it's make performance optimization
@rajasdataengineering7585
@rajasdataengineering7585 Месяц назад
Pls watch the complete video and you will understand how it improves performance
@SriRamTrading
@SriRamTrading Месяц назад
@@rajasdataengineering7585 in simple it just change the order of column, correct me if m wrong
@passions9730
@passions9730 10 месяцев назад
Finally ur back..
@georgesudi
@georgesudi 9 месяцев назад
Hi, Thanks for sharing those features! It helped me a lot
@rajasdataengineering7585
@rajasdataengineering7585 9 месяцев назад
Glad to hear that! Thanks for your comment
@vineethreddy.s
@vineethreddy.s 9 месяцев назад
At 13:19 how are you able to append the data with the schema being different. Shouldn't we use mergeSchema?
@AshokKumar-ji3cs
@AshokKumar-ji3cs 10 месяцев назад
Welcome back brother
@rajasdataengineering7585
@rajasdataengineering7585 10 месяцев назад
Thanks brother 👍🏻
@prabhatgupta6415
@prabhatgupta6415 6 месяцев назад
Cover real time scenarios in databricks sir. As well as cicd.
@rajasdataengineering7585
@rajasdataengineering7585 6 месяцев назад
Sure, will do
@vidyasagar6597
@vidyasagar6597 10 месяцев назад
Hi sir, Can you please create a vedio on why and when we opt for different scripting pyspark or scala or java or R.. what's the difference?
@teluguoldmemories8325
@teluguoldmemories8325 9 месяцев назад
For delta don't specified using delta it will take automatically you can check also using describe extended command.
@abhishekjoshi48
@abhishekjoshi48 10 месяцев назад
Hello Sir, Thank you for video, I have requirements where I need to change datatype of column instead of long it should be string what would be the possible ways?
@rajasdataengineering7585
@rajasdataengineering7585 10 месяцев назад
Hi Abhishek, you can use cast method in pyspark
@pde.joggiri
@pde.joggiri 9 месяцев назад
Hi sir FSCK vs MSCK please explain? We mostly face manual file delete error/ file not found error and FSCk resolve the issue When can we use MSCK
@rajasdataengineering7585
@rajasdataengineering7585 9 месяцев назад
Hi, sure I will create a video on this requirement
@sambitmohanty1758
@sambitmohanty1758 10 месяцев назад
Hi can you please make a video on DE project end to end
@rajasdataengineering7585
@rajasdataengineering7585 10 месяцев назад
Hi, I have already created couple of videos on this requirement. You can check if that helps you ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-dxxXWe4gNTo.html ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Ia6fDlhlKXQ.html
@bachannigam4332
@bachannigam4332 7 месяцев назад
Will u recommend any book ?
@rajasdataengineering7585
@rajasdataengineering7585 7 месяцев назад
Spark definitive guide is good to understand spark internals
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