Get multiple count in a single MySQL query for specific column values

MySQLMySQLi Database

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)
raja
Published on 23-Dec-2019 16:24:48
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