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Get multiple count in a single MySQL query for specific column values
For this, you can use aggregate function sum() along with parameter value for specific column. Let us first create a table −
mysql> create table DemoTable1790 ( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, Name varchar(20), Score int ); Query OK, 0 rows affected (0.94 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable1790(Name,Score) values('Chris',45);
Query OK, 1 row affected (0.38 sec)
mysql> insert into DemoTable1790(Name,Score) values('David',55);
Query OK, 1 row affected (0.13 sec)
mysql> insert into DemoTable1790(Name,Score) values('David',98);
Query OK, 1 row affected (0.12 sec)
mysql> insert into DemoTable1790(Name,Score) values('Chris',91);
Query OK, 1 row affected (0.13 sec)
mysql> insert into DemoTable1790(Name,Score) values('Mike',99);
Query OK, 1 row affected (0.10 sec)
mysql> insert into DemoTable1790(Name,Score) values('Carol',55);
Query OK, 1 row affected (0.35 sec)Display all records from the table using select statement −
mysql> select * from DemoTable1790;
This will produce the following output −
+----+-------+-------+ | Id | Name | Score | +----+-------+-------+ | 1 | Chris | 45 | | 2 | David | 55 | | 3 | David | 98 | | 4 | Chris | 91 | | 5 | Mike | 99 | | 6 | Carol | 55 | +----+-------+-------+ 6 rows in set (0.00 sec)
Here is the query to get multiple counts in a single MySQL query −
mysql> select sum(Name='Chris'),sum(Score=55) from DemoTable1790;
This will produce the following output −
+-------------------+---------------+ | sum(Name='Chris') | sum(Score=55) | +-------------------+---------------+ | 2 | 2 | +-------------------+---------------+ 1 row in set (0.00 sec)
Updated on: 23-Dec-2019
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