How to get the count of each distinct value in a column in MySQL?

MySQLMySQLi Database

Let us see an example to get the count of each distinct value in a column. Firstly, we will create a table.

The CREATE command is used to create a table.

mysql> create table DistinctDemo1
   - > (
   - > id int,
   - > name varchar(100)
   - > );
Query OK, 0 rows affected (0.43 sec)

Inserting records

mysql> insert into DistinctDemo1 values(1,'John');
Query OK, 1 row affected (0.34 sec)

mysql> insert into DistinctDemo1 values(2,'John');
Query OK, 1 row affected (0.20 sec)

mysql> insert into DistinctDemo1 values(3,'John');
Query OK, 1 row affected (0.09 sec)

mysql> insert into DistinctDemo1 values(4,'Carol');
Query OK, 1 row affected (0.17 sec)

mysql> insert into DistinctDemo1 values(5,'David');
Query OK, 1 row affected (0.12 sec)

Displaying all records

mysql> select *from DistinctDemo1;

The following is the output that displays all the records.

+------+-------+
| id   | name  |
+------+-------+
|    1 | John  |
|    2 | John  |
|    3 | John  |
|    4 | Carol |
|    5 | David |
+------+-------+
5 rows in set (0.00 sec)

The following is the syntax to get the count.

mysql> SELECT name,COUNT(1) as OccurenceValue FROM DistinctDemo1 GROUP BY name ORDER BY OccurenceValue;

Here is the output.

+-------+----------------+
| name  | OccurenceValue |
+-------+----------------+
| Carol |              1 |
| David |              1 |
| John  |              3 |
+-------+----------------+
3 rows in set (0.04 sec)
raja
Published on 20-Nov-2018 11:51:35
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