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MySQL query to sum up values of rows and sort the result?
For this, you can use GROUP BY along with ORDER BY clause. Let us first create a table −
mysql> create table DemoTable1499 -> ( -> StudentName varchar(20), -> StudentMarks int -> ); Query OK, 0 rows affected (0.46 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable1499 values('Chris',56);
Query OK, 1 row affected (0.13 sec)
mysql> insert into DemoTable1499 values('David',78);
Query OK, 1 row affected (0.13 sec)
mysql> insert into DemoTable1499 values('Bob',98);
Query OK, 1 row affected (0.18 sec)
mysql> insert into DemoTable1499 values('Chris',45);
Query OK, 1 row affected (0.12 sec)
mysql> insert into DemoTable1499 values('David',98);
Query OK, 1 row affected (0.12 sec)
mysql> insert into DemoTable1499 values('Bob',58);
Query OK, 1 row affected (0.11 sec)
Display all records from the table using select statement −
Mysql> select * from DemoTable1499;
This will produce the following output −
+-------------+--------------+ | StudentName | StudentMarks | +-------------+--------------+ | Chris | 56 | | David | 78 | | Bob | 98 | | Chris | 45 | | David | 98 | | Bob | 58 | +-------------+--------------+ 6 rows in set (0.00 sec)
Following is the query to sum up values of rows and sort the result −
mysql> select StudentName,sum(StudentMarks) as TotalSum from DemoTable1499 -> group by StudentName -> order by TotalSum desc;
This will produce the following output −
+-------------+----------+ | StudentName | TotalSum | +-------------+----------+ | David | 176 | | Bob | 156 | | Chris | 101 | +-------------+----------+ 3 rows in set (0.00 sec)
Updated on: 2019-12-11T05:46:53+05:30
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