Example: Use ARRAY_AGG - Advanced SQL Engine - Teradata Database

Aggregate the job positions into arrays containing the ages of the employees in those jobs.

SELECT pos, ARRAY_AGG(age ORDER BY empId, NEW intarr5()) 
FROM employeeTable 
GROUP BY pos
ORDER BY pos;

Result:

pos         ARRAY_AGG(age ORDER BY empId ASC, NEW intarr5())
------------------------------------------------------------
engineer    (24,34,25,21)
executive   (50,51,52,52,60)
manager     (40,41,45,48)
salesman    (31,32,33,40)