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August 27, 2024
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How to add a field that can generate unique value for each record using Query service

  • August 27, 2024
  • 1 reply
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Hi Experts,

We have created an adhoc dataset, which combines the records of all three system datasets from AJO: EMAIL, PUSH and MESSAGE.

But, as multiple joins were used in query, no field is unique in records.

Is there a way we can add a new coulmn which gets updated sequentially in this dataset with each record, so it is unique.

I checked with rand() function, but it has limit and rownumber() will start with 1 again every time the query runs.

Query is scheduled for every 24 hours.

 

Thanks!

Shivani

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Best answer by Pradeep_Kumar_Srivastav

Hi @shivanim , you can use randn or UUID for generating unique identifiers.

Alternatively, you can try concatenating fields. For example, combine the timestamp (now()) with other relevant fields to create a more specific identifier, or use ROW_NUMBER() along with the current date.
Please refer https://experienceleague.adobe.com/en/docs/experience-platform/query/sql/spark-sql-functions

1 reply

Pradeep_Kumar_Srivastav
Community Advisor
Pradeep_Kumar_SrivastavCommunity AdvisorAccepted solution
Community Advisor
August 27, 2024

Hi @shivanim , you can use randn or UUID for generating unique identifiers.

Alternatively, you can try concatenating fields. For example, combine the timestamp (now()) with other relevant fields to create a more specific identifier, or use ROW_NUMBER() along with the current date.
Please refer https://experienceleague.adobe.com/en/docs/experience-platform/query/sql/spark-sql-functions