MySQL ORDER BY strings with underscore?

Let us first create a table −

mysql> create table DemoTable
(
   Name varchar(100)
);
Query OK, 0 rows affected (0.60 sec)

Insert some records in the table using insert command −

mysql> insert into DemoTable values('John_Smith');
Query OK, 1 row affected (0.17 sec)
mysql> insert into DemoTable values('Chris Brown');
Query OK, 1 row affected (0.15 sec)
mysql> insert into DemoTable values('John_Doe');
Query OK, 1 row affected (0.11 sec)
mysql> insert into DemoTable values('David Miller');
Query OK, 1 row affected (0.16 sec)
mysql> insert into DemoTable values('Carol Taylor');
Query OK, 1 row affected (0.13 sec)

Display all records from the table using select statement −

mysql> select *from DemoTable;

This will produce the following output −

+--------------+
| Name         |
+--------------+
| John_Smith   |
| Chris Brown  |
| John_Doe     |
| David Miller |
| Carol Taylor |
+--------------+
5 rows in set (0.00 sec)

Following is the query to order by strings with an underscore −

mysql> select *from DemoTable order by (Name LIKE 'John_%') DESC,rand();

This will produce the following output −

+--------------+
| Name         |
+--------------+
| John_Doe     |
| John_Smith   |
| Carol Taylor |
| David Miller |
| Chris Brown  |
+--------------+
5 rows in set (0.42 sec)

AmitDiwan

Published on 26-Sep-2019 10:55:23