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Select and filter the records on month basis in a MySQL table?
You can use aggregate function SUM() with GROUP BY clause to achieve this.
Let us create a table. The query to create a table is as follows −
mysql> create table SelectPerMonthDemo -> ( -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> Price int, -> PurchaseDate datetime -> ); Query OK, 0 rows affected (2.34 sec)
Example
Insert some records in the table using insert command with one of them would be the date of purchase. The query is as follows −
mysql> insert into SelectPerMonthDemo(Price,PurchaseDate) values(600,date_add(now(), interval -1 month)); Query OK, 1 row affected (0.42 sec) mysql> insert into SelectPerMonthDemo(Price,PurchaseDate) values(600,date_add(now(), interval 2 month)); Query OK, 1 row affected (0.34 sec) mysql> insert into SelectPerMonthDemo(Price,PurchaseDate) values(400,now()); Query OK, 1 row affected (0.20 sec) mysql> insert into SelectPerMonthDemo(Price,PurchaseDate) values(800,date_add(now(), interval 3 month)); Query OK, 1 row affected (0.13 sec) mysql> insert into SelectPerMonthDemo(Price,PurchaseDate) values(900,date_add(now(), interval 4 month)); Query OK, 1 row affected (0.10 sec) mysql> insert into SelectPerMonthDemo(Price,PurchaseDate) values(100,date_add(now(), interval 4 month)); Query OK, 1 row affected (0.22 sec) mysql> insert into SelectPerMonthDemo(Price,PurchaseDate) values(1200,date_add(now(), interval -1 month)); Query OK, 1 row affected (0.09 sec)
Display all records from the table using a select statement. The query is as follows −
mysql> select *from SelectPerMonthDemo;
Output
The following is the output displaying the price and purchase date of the products −
+----+-------+---------------------+ | Id | Price | PurchaseDate | +----+-------+---------------------+ | 1 | 600 | 2019-01-10 22:39:30 | | 2 | 600 | 2019-04-10 22:39:47 | | 3 | 400 | 2019-02-10 22:40:03 | | 4 | 800 | 2019-05-10 22:40:18 | | 5 | 900 | 2019-06-10 22:40:29 | | 6 | 100 | 2019-06-10 22:40:41 | | 7 | 1200 | 2019-01-10 22:40:50 | +----+-------+---------------------+ 7 rows in set (0.00 sec)
Here is the query to get the records according to individual months based on the Purchase Date −
mysql> select monthname(PurchaseDate) as MONTHNAME,sum(Price) from SelectPerMonthDemo -> group by monthname(PurchaseDate);
Output
+-----------+------------+ | MONTHNAME | sum(Price) | +-----------+------------+ | January | 1800 | | April | 600 | | February | 400 | | May | 800 | | June | 1000 | +-----------+------------+ 5 rows in set (0.07 sec)
If you do not want the month name (only the month number), then use the following query −
mysql> select month(PurchaseDate),sum(Price) from SelectPerMonthDemo -> group by month(PurchaseDate);
Output
+---------------------+------------+ | month(PurchaseDate) | sum(Price) | +---------------------+------------+ | 1 | 1800 | | 4 | 600 | | 2 | 400 | | 5 | 800 | | 6 | 1000 | +---------------------+------------+ 5 rows in set (0.00 sec)
Updated on: 06-Mar-2020
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