How to Use write_pandas to Migrate Dataframes into Snowflake Databases

How to Use write_pandas to Migrate Dataframes into Snowflake Databases

Most people who work with data in Python are familiar and comfortable with using Pandas dataframes for their data, so it makes sense that we look for a dataframe-focused tool when we migrate data to a big data platform like Snowflake. This is where the Snowflake Connector for Python comes in, with the extra tools installation available for Pandas integration. This includes the write_pandas function; an efficient and simple way to move whole dataframes into your Snowflake database tables.

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How to Use write_pandas to Migrate Dataframes into Snowflake Databases
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pandas to snowflake, dataframes to snowflake, snowflake connector python pandas, python write_pandas, write_pandas snowflake, sean mackenzie data analytics and data engineering

#SnowflakeDatabase #Write_pandas #Dataframes

[shivamaga]

Thanks Sean! I was looking for this Migrate from pandas to snowflake.

[amiteshshukla]

It was great and easy to follow up. Can you also put a video on how to send data from the snowflake table to CSV?

[tylerdarwick]

Great video. Is there a way to only add new records to the table and not append all rows?

[stevemiller]

Question: Is there a way to call write_pandas(), and only copy column over IF NOT EXISTS? This way I don't keep getting column repeats every time I run the script.

Excellent content Sean, thank you.

[federicogervasio]

Hey! Thanks for the video. The "write_pandas" automatically match the columns names in Snowflake? Or you need to respect the dimension and the column names in order to write data? And, what about overwriting an specific row? Thanks!

[_______]

Awesome video Sean! Very helpful. Does write_pandas have an option to automatically create a non-existing snowflake table that is mapped appropriately to the data frame? Ultimately so I don’t have to create the table before the ingest from the csv? If not, is there such a way I can automatically generate the non-existing snowflake table I am inserting into from the pandas df?

[saurabhsarode]

Hi Sean, great video to start with snowflake using pandas. Thanks for sharing it. One quick question, if we dont have table created in Snowflake db, is there any way to create automatically using the csv columns.

[mahabubulhasan]

Question: Is there any way to speed things up for a large dataset eg: 1M rows?

[KingAtem]

Hi Sean, really great video. Quick question, are you aware if there is a way to do bulk insert using write_pandas( ) and updating any rows when existing key is found in the table you're uploading to ?

[giggilgg]

Hi! Thanks for the video! I just want to ask if write_pandas appends the new data or it replaces the data of the existing table in the Snowflake?

[ShriramRavichandran]

I am using write_pandas inside a try except block. Can you confirm that all exceptions thrown by the write_pandas inherit from the Exception class? Just want to make sure there aren't any error types that do not belong to Exception and therefore won't get caught in this except block.
Or should we not use try except block at all for write_pandas ?

[dakshssarapuregamingchannel]

I tried to upload dataframe from jupyter notebook to snowflake following the steps you mentioned in this video Iam getting error. MissingDependencyError: Missing optional dependency: pandas. How to resolve this error. Can you please help me?

[juliocardenas-rodriguez]

Did you create the target table ahead of time ?

[sanidhyagupta]

Hi, where can i find the "Account" thing? Can anyone help me?

[WaterWonderlust]

Hey Sean, Great video. I've followed your instructions however I get the following error when I execute the code... Any suggestions on how to resolve would be helpful.

NotADirectoryError: [WinError 267] The directory name is invalid

[chundurusriharsha]

If I have .bak file with me, how can I load data into a snowflake?

[prudhvibuddha]

Its showing yarrow.lib.arrowtype error ...expected bytes got a float object plz tell how to solve it

[subramanyams]

Hi Sean, Thanks for the video. I am getting below error Any idea how to resolve it.
error message : 000904 (42000): SQL compilation error: error line 1 at position 78
invalid identifier '"1"'

I just did it as is from the video.