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MySQL select order by acts like a string (not a number)?
You can use the following syntax if your column has varchar data type −
select yourColumnName FROM yourTableName ORDER BY yourColumnName +0 DESC;
To understand the above syntax, let us create a table. The query to create a table is as follows −
mysql> create table selectOrderdemo -> ( -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> Name varchar(100), -> RankNumber varchar(100) -> ); Query OK, 0 rows affected (0.55 sec)
Insert some records in the table using insert command. The query is as follows −
mysql> insert into selectOrderdemo(Name,RankNumber) values('Larry',-100);
Query OK, 1 row affected (0.23 sec)
mysql> insert into selectOrderdemo(Name,RankNumber) values('John',50);
Query OK, 1 row affected (0.13 sec)
mysql> insert into selectOrderdemo(Name,RankNumber) values('Bob',0);
Query OK, 1 row affected (0.14 sec)
mysql> insert into selectOrderdemo(Name,RankNumber) values('Carol',-110);
Query OK, 1 row affected (0.23 sec)
mysql> insert into selectOrderdemo(Name,RankNumber) values('David',98);
Query OK, 1 row affected (0.21 secDisplay all records from the table using select statement. The query is as follows −
mysql> select *from selectOrderdemo;
Here is the output −
+----+-------+------------+ | Id | Name | RankNumber | +----+-------+------------+ | 1 | Larry | -100 | | 2 | John | 50 | | 3 | Bob | 0 | | 4 | Carol | -110 | | 5 | David | 98 | +----+-------+------------+ 5 rows in set (0.00 sec)
Here is the query to select order by that acts like number.
Case 1 − If you want the result in descending order, The query is as follows −
mysql> select RankNumber FROM selectOrderdemo ORDER BY RankNumber+0 DESC;
Here is the output −
+------------+ | RankNumber | +------------+ | 98 | | 50 | | 0 | | -100 | | -110 | +------------+ 5 rows in set (0.00 sec)
Case 2 − If you want the result in ascending order, The query is as follows −
mysql> select RankNumber FROM selectOrderdemo ORDER BY RankNumber+0;
Here is the output −
+------------+ | RankNumber | +------------+ | -110 | | -100 | | 0 | | 50 | | 98 | +------------+ 5 rows in set (0.00 sec)
Case 3 − If you want all the columns, use the below query −
mysql> select * FROM selectOrderdemo ORDER BY RankNumber+0 DESC;
Here is the output −
+----+-------+------------+ | Id | Name | RankNumber | +----+-------+------------+ | 5 | David | 98 | | 2 | John | 50 | | 3 | Bob | 0 | | 1 | Larry | -100 | | 4 | Carol | -110 | +----+-------+------------+ 5 rows in set (0.00 sec)
Updated on: 30-Jul-2019
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