Count values greater and less than a specific number and display count in separate MySQL columns?
For this, you can use COUNT() along with CASE STATEMENT. Let us first create a table −
mysql> create table DemoTable
(
Score int
);
Query OK, 0 rows affected (0.71 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable values(40);
Query OK, 1 row affected (0.77 sec)
mysql> insert into DemoTable values(48);
Query OK, 1 row affected (0.12 sec)
mysql> insert into DemoTable values(59);
Query OK, 1 row affected (0.10 sec)
mysql> insert into DemoTable values(33);
Query OK, 1 row affected (0.20 sec)
mysql> insert into DemoTable values(38);
Query OK, 1 row affected (0.09 sec)
mysql> insert into DemoTable values(89);
Query OK, 1 row affected (0.11 sec)
mysql> insert into DemoTable values(35);
Query OK, 1 row affected (0.12 sec)
Display all records from the table using select statement −
mysql> select *from DemoTable;
This will produce the following output −
+-------+
| Score |
+-------+
| 40 |
| 48 |
| 59 |
| 33 |
| 38 |
| 89 |
| 35 |
+-------+
7 rows in set (0.00 sec)
Following is the query to count values greater and less than a specific number and display count in separate columns −
mysql> select count( case when Score > 45 then 1 end) as CountOfValueGreaterThan45,
count( case when Score <= 45 then 1 end) as CountOfValueLessThanOrEqualTo45
from DemoTable;
This will produce the following output −
+---------------------------+---------------------------------+
| CountOfValueGreaterThan45 | CountOfValueLessThanOrEqualTo45 |
+---------------------------+---------------------------------+
| 3 | 4 |
+---------------------------+---------------------------------+
1 row in set (0.00 sec)
Published on 09-Oct-2019 15:37:28
