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CREATE TABLE orders(orderdate date); INSERT INTO orders VALUES ('2012-08-28') , ('2012-08-28') , ('2012-08-29') , ('2012-12-21') , ('2012-12-21') , ('2012-01-01') , ('2012-01-02');
7 rows affected
SELECT to_char(date_trunc('month', orderdate), 'Mon') AS "Month" , count(*) AS "Quantity" FROM orders GROUP BY date_trunc('month', orderdate) ORDER BY date_trunc('month', orderdate);
Month
Quantity
Jan
2
Aug
3
Dec
2