How to get array length / size of a nested field in big query
Consider the below table in big query, where I have a repeated nested field called author_names.AuN
How can I get the length of the repeated nested field author_names?
e.g. for article_id = 2049807276, the length of the author names would be 2.
Solution:
You should use ARRAY_LENGTH() function
#standard SQL
SELECT article_id, ARRAY_LENGTH(author_names) len
FROM `table`
nVector
posted on 20 Apr 19Enjoy great content like this and a lot more !
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