topic Re: Filed Json Cassandra db to multiples fields postgresql in Talend Studio

Filed Json Cassandra db to multiples fields postgresql

mcorsato — Sat, 16 Nov 2024 05:59:56 GMT

I need to extract the data from a field saved in the json format of the cassandra database and save this data separately in the postgresql database. This is a field in json format where all the information in the items of an order is saved. Can anyone help me do this?

Re: Filed Json Cassandra db to multiples fields postgresql

Anonymous — Fri, 26 Apr 2019 05:43:37 GMT

Hi,

Did you try tExtractJSONFields component to extract the data?

Please refer the below post to get some idea. If you are still stuck, please provide with sample data and expected output and we can give it a try.

https://community.talend.com/t5/Design-and-Development/how-to-convert-json-data-to-csv-file/m-p/145554#M89557

Warm Regards,
Nikhil Thampi

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Re: Filed Json Cassandra db to multiples fields postgresql

mcorsato — Fri, 26 Apr 2019 16:17:11 GMT

Thanks Nikhil Thampi,

My json field content is

{
   "purchasedItems":{
      "bundle":"false",
      "classification":"1",
      "costCenter":null,
      "createdAt":"2019-03-28T18:41:38.839Z",...continue

My query json in tExtractJsonFields is

But it does not work, what am I doing wrong?

Re: Filed Json Cassandra db to multiples fields postgresql

Anonymous — Mon, 29 Apr 2019 08:00:02 GMT

Hi,

Assuming your entire JSON is in a Single String as shown below, I was able to get the output

{    "purchasedItems":{       "bundle":"false",      "classification":"1",      "costCenter":null,      "createdAt":"2019-03-28T18:41:38.839Z"	 }}

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 🙂