MySQL 如何在一个查询中使用GROUP BY、HAVING和ORDER BY显示和特定范围之间的总和记录

MySQL 如何在一个查询中使用GROUP BY、HAVING和ORDER BY显示和特定范围之间的总和记录

首先让我们创建一个表 –

mysql> CREATE TABLE DemoTable
(
   Id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
   CustomerName VARCHAR(20),
   ProductPrice INT
);
Query OK, 0 rows affected (0.70 sec)
Mysql

使用insert命令在表中插入一些记录 –

mysql> insert into DemoTable(CustomerName,ProductPrice) values('Chris',600);
Query OK, 1 row affected (0.18 sec)
mysql> insert into DemoTable(CustomerName,ProductPrice) values('David',450);
Query OK, 1 row affected (0.09 sec)
mysql> insert into DemoTable(CustomerName,ProductPrice) values('Chris',980);
Query OK, 1 row affected (0.40 sec)
mysql> insert into DemoTable(CustomerName,ProductPrice) values('Mike',1200);
Query OK, 1 row affected (0.11 sec)
mysql> insert into DemoTable(CustomerName,ProductPrice) values('Chris',400);
Query OK, 1 row affected (0.11 sec)
mysql> insert into DemoTable(CustomerName,ProductPrice) values('David',1200);
Query OK, 1 row affected (0.20 sec)
Mysql

使用select语句显示表中的所有记录 –

mysql> select *from DemoTable;
Mysql

这将产生以下输出 –

+----+--------------+--------------+
| Id | CustomerName | ProductPrice |
+----+--------------+--------------+
|  1 | Chris        |          600 |
|  2 | David        |          450 |
|  3 | Chris        |          980 |
|  4 | Mike         |         1200 |
|  5 | Chris        |          400 |
|  6 | David        |         1200 |
+----+--------------+--------------+
6 rows in set (0.00 sec)
Mysql

以下是显示特定范围数字的查询 –

mysql> select CustomerName,sum(ProductPrice) AS Total_Price
   from DemoTable
   group by CustomerName
   having sum(ProductPrice) between 1600 and 2000
   order by CustomerName DESC;
Mysql

这将产生以下输出 –

+--------------+-------------+
| CustomerName | Total_Price |
+--------------+-------------+
| David        |        1650 |
| Chris        |        1980 |
+--------------+-------------+
2 rows in set (0.00 sec)
Mysql

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