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MySQL order by string with numbers?
To MySQL order string with numbers, the following is the syntax, wherein we have used ORDER BY, SUBSTR() and CAST() −
SELECT *FROM yourTableName ORDER BY SUBSTR(yourColumnName FROM 1 FOR 2), CAST(SUBSTR(yourColumnName FROM 2) AS UNSIGNED);
To understand the above syntax, let us create a table. The query to create a table is as follows −
mysql> create table OrderByStringWithNumbers -> ( -> Id int NOT NULL AUTO_INCREMENT, -> Words varchar(10), -> PRIMARY KEY(Id) -> ); Query OK, 0 rows affected (0.86 sec)
Insert some records in the table using insert command. The query is as follows −
mysql> insert into OrderByStringWithNumbers(Words) values('A10');
Query OK, 1 row affected (0.19 sec)
mysql> insert into OrderByStringWithNumbers(Words) values('A30');
Query OK, 1 row affected (0.19 sec)
mysql> insert into OrderByStringWithNumbers(Words) values('A12');
Query OK, 1 row affected (0.13 sec)
mysql> insert into OrderByStringWithNumbers(Words) values('A11');
Query OK, 1 row affected (0.17 sec)
mysql> insert into OrderByStringWithNumbers(Words) values('A28');
Query OK, 1 row affected (0.13 sec)
mysql> insert into OrderByStringWithNumbers(Words) values('A21');
Query OK, 1 row affected (0.20 sec)
Display all records from the table using select statement −
mysql> select *from OrderByStringWithNumbers;
The following is the output −
+----+-------+ | Id | Words | +----+-------+ | 1 | A10 | | 2 | A30 | | 3 | A12 | | 4 | A11 | | 5 | A28 | | 6 | A21 | +----+-------+ 6 rows in set (0.00 sec)
Here is the query to order by string with numbers −
mysql> select *from OrderByStringWithNumbers order by -> substr(Words from 1 for 2), -> cast(substr(Words from 2) AS UNSIGNED);
The following is the output −
+----+-------+ | Id | Words | +----+-------+ | 1 | A10 | | 4 | A11 | | 3 | A12 | | 6 | A21 | | 5 | A28 | | 2 | A30 | +----+-------+ 6 rows in set (0.00 sec)
Updated on: 2020-06-30T07:20:00+05:30
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