The Sum() is an aggregate function in MySQL. You can use sum query with if condition. To understand the sum query with if condition, let us create a table.
The query to create a table −
mysql> create table SumWithIfCondition −> ( −> ModeOfPayment varchar(100) −> , −> Amount int −> ); Query OK, 0 rows affected (1.60 sec)
Insert some records in the table using insert command. The query is as follows −
mysql> insert into SumWithIfCondition values('Offline',10);
Query OK, 1 row affected (0.21 sec)
mysql> insert into SumWithIfCondition values('Online',100);
Query OK, 1 row affected (0.16 sec)
mysql> insert into SumWithIfCondition values('Offline',20);
Query OK, 1 row affected (0.13 sec)
mysql> insert into SumWithIfCondition values('Online',200);
Query OK, 1 row affected (0.16 sec)
mysql> insert into SumWithIfCondition values('Offline',30);
Query OK, 1 row affected (0.11 sec)
mysql> insert into SumWithIfCondition values('Online',300);
Query OK, 1 row affected (0.17 sec)Display all records from the table using select statement. The query is as follows −
mysql> select *from SumWithIfCondition;
The following is the output −
+---------------+--------+ | ModeOfPayment | Amount | +---------------+--------+ | Offline | 10 | | Online | 100 | | Offline | 20 | | Online | 200 | | Offline | 30 | | Online | 300 | +---------------+--------+ 6 rows in set (0.00 sec)
Here is the sum query with if condition.
Case 1 - if for Online Mode of Payment
The query is as follows −
mysql> select sum(if(ModeOfPayment = 'Online',Amount,0)) as TotalAmount from SumWithIfCondition;
The following is the output −
+-------------+ | TotalAmount | +-------------+ | 600 | +-------------+ 1 row in set (0.00 sec)
Case 2 - if for Offline Mode of Payment
The query is as follows −
mysql> select sum(if(ModeOfPayment = 'Offline',Amount,0)) as TotalAmount from SumWithIfCondition;
The following is the output −
+-------------+ | TotalAmount | +-------------+ | 60 | +-------------+ 1 row in set (0.00 sec)