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MySQL query to sum rows having repeated corresponding Id
To sum, you can use aggregate function SUM(). Let us first create a table −
mysql> create table DemoTable850( Id int, Price int ); Query OK, 0 rows affected (0.54 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable850 values(1,90); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable850 values(2,100); Query OK, 1 row affected (0.55 sec) mysql> insert into DemoTable850 values(2,50); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable850 values(1,80); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable850 values(1,60); Query OK, 1 row affected (0.10 sec)
Display all records from the table using select statement −
mysql> select *from DemoTable850;
This will produce the following output −
+------+-------+ | Id | Price | +------+-------+ | 1 | 90 | | 2 | 100 | | 2 | 50 | | 1 | 80 | | 1 | 60 | +------+-------+ 5 rows in set (0.00 sec)
Following is the query to sum rows having repeated values −
mysql> select Id,SUM(Price) from DemoTable850 where Id=1;
This will produce the following output −
+------+------------+ | Id | SUM(Price) | +------+------------+ | 1 | 230 | +------+------------+ 1 row in set (0.00 sec)
Updated on: 03-Sep-2019
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