- Trending Categories
- Data Structure
- Networking
- RDBMS
- Operating System
- Java
- MS Excel
- iOS
- HTML
- CSS
- Android
- Python
- C Programming
- C++
- C#
- MongoDB
- MySQL
- Javascript
- PHP
- Physics
- Chemistry
- Biology
- Mathematics
- English
- Economics
- Psychology
- Social Studies
- Fashion Studies
- Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Count and sort rows with a single MySQL query
Let us first create a table −
mysql> create table DemoTable783 ( FirstName varchar(100) ); Query OK, 0 rows affected (0.65 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable783 values('Adam'); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable783 values('Chris'); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable783 values('Chris'); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable783 values('Adam'); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable783 values('Adam'); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable783 values('Robert'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable783 values('Robert'); Query OK, 1 row affected (0.22 sec) mysql> insert into DemoTable783 values('Adam'); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable783 values('Chris'); Query OK, 1 row affected (0.14 sec)
Display all records from the table using select statement −
mysql> select *from DemoTable783;
This will produce the following output -
+-----------+ | FirstName | +-----------+ | Adam | | Chris | | Chris | | Adam | | Adam | | Robert | | Robert | | Adam | | Chris | +-----------+ 9 rows in set (0.00 sec)
Following is the query to count and sort rows in MySQL −
mysql> select FirstName, count(*) from DemoTable783 group by FirstName order by count(*) desc;
This will produce the following output -
+-----------+----------+ | FirstName | count(*) | +-----------+----------+ | Adam | 4 | | Chris | 3 | | Robert | 2 | +-----------+----------+ 3 rows in set (0.00 sec)
Advertisements