Get sum of column with conditions in MySQL

Let us first create a table −

mysql> create table DemoTable1489
   -> (
   -> ProductId int,
   -> ProductPrice int
   -> );
Query OK, 0 rows affected (0.49 sec)

Insert some records in the table using insert command −

mysql> insert into DemoTable1489 values(100,900);
Query OK, 1 row affected (0.13 sec)
mysql> insert into DemoTable1489 values(115,1000);
Query OK, 1 row affected (0.12 sec)
mysql> insert into DemoTable1489 values(119,2100);
Query OK, 1 row affected (0.17 sec)
mysql> insert into DemoTable1489 values(125,2100);
Query OK, 1 row affected (0.18 sec)
mysql> insert into DemoTable1489 values(128,2900);
Query OK, 1 row affected (0.25 sec)

Display all records from the table using select statement −

mysql> select * from DemoTable1489;

This will produce the following output −

+-----------+--------------+
| ProductId | ProductPrice |
+-----------+--------------+
|       100 |          900 |
|       115 |         1000 |
|       119 |         2100 |
|       125 |         2100 |
|       128 |         2900 |
+-----------+--------------+
5 rows in set (0.00 sec)

Here is the query to get sum of columns with conditions −

mysql> select ProductId div 10,sum(ProductPrice) from DemoTable1489
   -> group by ProductId div 10;

This will produce the following output −

+------------------+-------------------+
| ProductId div 10 | sum(ProductPrice) |
+------------------+-------------------+
|               10 |               900 |
|               11 |              3100 |
|               12 |              5000 |
+------------------+-------------------+
3 rows in set (0.00 sec)