Select rows with multiple values in column SQL BigQuery

Question

I have a dataframe which i want to group by specific columns and then select only rows with multiple values (> 1) in colum FieldID_distinct. Goal is to find distinct FieldID with same DateTime, SerialNumber, geometry, FarmName, FieldName.

My query

select DateTime, SerialNumber, geometry, FarmName, FieldName,
ARRAY_AGG(DISTINCT FieldID) AS FieldID_distinct
from `xxx.yyy.zzz`
group by 1,2,3,4,5
order by DateTime ASC

I tried

where FieldID_distinct> 2   

and

having FieldID_distinct> 2  

but failed.

Answer 1

for Oracle you have to make use of count() function having count(FieldID_duplicate) >2.

Answer 2

You can just count the values in a having clause:

select DateTime, SerialNumber, geometry, FarmName, FieldName,
       ARRAY_AGG(DISTINCT FieldID) AS FieldID_distinct
from `xxx.yyy.zzz`
group by 1, 2, 3, 4, 5
having count(distinct FieldID) > 2
order by DateTime ASC;