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根据月份从MySQL表中选择总计

2024-05-16 22:13:06 347

为此，您可以使用GROUPBYMONTH()。让我们首先创建一个表-

mysql> create table DemoTable1628
    -> (
    -> PurchaseDate date,
    -> Amount int
    -> );

使用insert命令在表中插入一些记录。

mysql> insert into DemoTable1628 values('2019-01-10',1500);
mysql> insert into DemoTable1628 values('2019-10-10',2000);
mysql> insert into DemoTable1628 values('2019-10-24',100);
mysql> insert into DemoTable1628 values('2019-11-10',500);
mysql> insert into DemoTable1628 values('2019-12-10',1600);
mysql> insert into DemoTable1628 values('2019-10-10',900);

使用select语句显示表中的所有记录-

mysql> select * from DemoTable1628;

这将产生以下输出-

+--------------+--------+
| PurchaseDate | Amount |
+--------------+--------+
| 2019-01-10   |   1500 |
| 2019-10-10   |   2000 |
| 2019-10-24   |    100 |
| 2019-11-10   |    500 |
| 2019-12-10   |   1600 |
| 2019-10-10   |    900 |
+--------------+--------+
6 rows in set (0.00 sec)

这是基于月份从数据库表中获取总计的查询-

mysql> select month(PurchaseDate) as Month,year(PurchaseDate) as Year,SUM(Amount)
    -> from DemoTable1628
    -> group by month(PurchaseDate);

这将产生以下输出-

+-------+------+-------------+
| Month | Year | SUM(Amount) |
+-------+------+-------------+
|     1 | 2019 |        1500 |
|    10 | 2019 |        3000 |
|    11 | 2019 |         500 |
|    12 | 2019 |        1600 |
+-------+------+-------------+
4 rows in set (0.20 sec)

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根据月份从MySQL表中选择总计

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