Concatenate the strings of a field within a group by query

Query Postgre untuk mengambil beberapa row menjadi satu cell :

SELECT site_id, string_agg(employee, ‘, ‘)
FROM mytable
GROUP BY company_id;

 

sumber: http://stackoverflow.com/questions/43870/how-to-concatenate-strings-of-a-string-field-in-a-postgresql-group-by-query

 

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