获取MySQL中两个给定日期之间的记录总和
为此,请使用BETWEEN关键字。让我们首先创建一个-
create table DemoTable1444-> (
-> Value int,
-> PurchaseDate datetime
-> );
使用insert在表中插入一些记录-
insert into DemoTable1444 values(40,'2019-01-10');insert into DemoTable1444 values(100,'2019-10-03');
insert into DemoTable1444 values(170,'2019-11-21');
insert into DemoTable1444 values(70,'2018-12-05');
使用选择显示表中的所有记录-
select * from DemoTable1444;
这将产生以下输出-
+-------+---------------------+| Value | PurchaseDate |
+-------+---------------------+
| 40 | 2019-01-10 00:00:00 |
| 100 | 2019-10-03 00:00:00 |
| 170 | 2019-11-21 00:00:00 |
| 70 | 2018-12-05 00:00:00 |
+-------+---------------------+
4 rows in set (0.00 sec)
以下是查询以获取两个给定日期之间的总和-
select sum(Value) from DemoTable1444 where PurchaseDate between '2019-10-02' and '2019-12-31';
这将产生以下输出-
+------------+| sum(Value) |
+------------+
| 270 |
+------------+
1 row in set (0.02 sec)
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