tMap to join two Pandas tables

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tMap to join two Pandas tables

I created two python codes to run in tSystem which should put the tables into a variable and forward it to tMap.

The readout in the console works well, but how can I see the columns in tMap to join them to one table?

Thanks.


Accepted Solutions
Employee

Re: tMap to join two Pandas tables

Hi,

 

    If you are able to send the data to console, a good idea is to send them to tHashOutput components as the first stage.

 

    Once you retrieve the data from both tSystem components to tHashOutput, then read the data from these Hash using tHashInput components and process them with tMap.

 

   While reading back from tHashInput components, please don't forget to select the clear Hash after reading check box.image.png

 

If you are not seeing these Hash Components in Palette, you can add them from below area.

File -> Edit Project Properties -> Designer ->Palette Settings -> Technical Components


Warm Regards,
Nikhil Thampi

Please appreciate our Talend community members by giving Kudos for sharing their time for your query. If your query is answered, please mark the topic as resolved :-)

 


All Replies
Employee

Re: tMap to join two Pandas tables

Hi,

 

    If you are able to send the data to console, a good idea is to send them to tHashOutput components as the first stage.

 

    Once you retrieve the data from both tSystem components to tHashOutput, then read the data from these Hash using tHashInput components and process them with tMap.

 

   While reading back from tHashInput components, please don't forget to select the clear Hash after reading check box.image.png

 

If you are not seeing these Hash Components in Palette, you can add them from below area.

File -> Edit Project Properties -> Designer ->Palette Settings -> Technical Components


Warm Regards,
Nikhil Thampi

Please appreciate our Talend community members by giving Kudos for sharing their time for your query. If your query is answered, please mark the topic as resolved :-)

 

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