Fill in gaps in data

I have rows of data that look like this:
Customer: ID:
12 NULL
12 NULL
12 NULL
12 NULL
12 NULL
12 56
How do I fill in the above rows with the customer ID, 56, Using ETL?
Best Answer
-
You can do this by first adding a filter tile and filter to where id is not null. Then add a group by tile and group by max id. This should give you one record of 12 and 56. Next, add a join tile and join your original input dataset with the group by tile and join on the customer column. Finally, add a formula tile and use ifnull to replace your id from the input dataset with the id group by tile.
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Answers
-
Group by your ID field, select the max customer ID value then join it back to your original dataset based on your 12 ID field. Then do a formula tile to choose either the Customer ID or the new Customer ID for your Customer ID field:
COALESCE(`Customer ID`, `New Customer ID`)
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Solved it with group by tile!
1 -
You can do this by first adding a filter tile and filter to where id is not null. Then add a group by tile and group by max id. This should give you one record of 12 and 56. Next, add a join tile and join your original input dataset with the group by tile and join on the customer column. Finally, add a formula tile and use ifnull to replace your id from the input dataset with the id group by tile.
**Check out my Domo Tips & Tricks Videos
**Make sure toany users posts that helped you.
**Please mark as accepted the ones who solved your issue.0
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