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I'm not sure what I'm missing here. I'm trying to use the field calculator to concatenate multiple fields into one new. All fields are identified as strings.

My expression:
concatenate( "Building" || '-' || "Floor" || '-' || "Area2" || '-' || "Room Numbe" )

Expected Results: 6-01-A-02

Actual results: 6-01-A-026-01-A-016-01-A-096-01-A-106-01-A-086-01-A-066-01-A-05

Basically the calculator is concatenating all records across the above fields until reaching the character limit. I'm not sure how to only concatenate by record.

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concatenate() works on all records and merge them.

To work on a single record, you can use the concatenation operator ||

 "Building" || '-' || "Floor" || '-' || "Area2" || '-' || "Room Numbe"

or you can use the concat() function

concat("Building" , '-' , "Floor" , '-' , "Area2" , '-' , "Room Numbe" )
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  • Thank you. I had tried both of these before and was getting a NULL value in the preview. I think it was just because I was editing multiple features. Upon further investigation, it did work as expected. – Heather May 22 '20 at 21:48

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