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MySQL query to group by column and display the sum of similar values in another column
For this, use GROUP BY HAVING clause.
Let us first create a table −
mysql> create table DemoTable782 ( Name varchar(100), Score int ); Query OK, 0 rows affected (1.18 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable782 values('John',156);
Query OK, 1 row affected (0.18 sec)
mysql> insert into DemoTable782 values('Carol',250);
Query OK, 1 row affected (0.15 sec)
mysql> insert into DemoTable782 values('Bob',140);
Query OK, 1 row affected (0.17 sec)
mysql> insert into DemoTable782 values('John',126);
Query OK, 1 row affected (0.29 sec)
mysql> insert into DemoTable782 values('John',140);
Query OK, 1 row affected (0.17 sec)
mysql> insert into DemoTable782 values('Bob',280);
Query OK, 1 row affected (0.17 sec)
mysql> insert into DemoTable782 values('Bob',250);
Query OK, 1 row affected (0.41 sec)
mysql> insert into DemoTable782 values('Carol',189);
Query OK, 1 row affected (0.17 sec)
mysql> insert into DemoTable782 values('Carol',299);
Query OK, 1 row affected (0.21 sec)Display all records from the table using select statement −
mysql> select *from DemoTable782;
This will produce the following output -
+-------+-------+ | Name | Score | +-------+-------+ | John | 156 | | Carol | 250 | | Bob | 140 | | John | 126 | | John | 140 | | Bob | 280 | | Bob | 250 | | Carol | 189 | | Carol | 299 | +-------+-------+ 9 rows in set (0.00 sec)
Following is the query to group by column and display the sum of similar values −
mysql> select Name,SUM(Score) AS Total from DemoTable782 group by Name HAVING Total > 500;
This will produce the following output -
+-------+-------+ | Name | Total | +-------+-------+ | Carol | 738 | | Bob | 670 | +-------+-------+ 2 rows in set (0.00 sec)
Updated on: 09-Sep-2019
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