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Get digits from a record in MySQL?
Use the function CONVERT() or Regular Expression. The CONVERT() method converts a value from one datatype to another. This will ecnetually fetch digits for us. Let us see an example.
Firstly, we will create a table.
mysql> create table textIntoNumberDemo -> ( -> Name varchar(100) -> ); Query OK, 0 rows affected (0.47 sec)
Inserting some records.
mysql> insert into textIntoNumberDemo values('John-11');
Query OK, 1 row affected (0.11 sec)
mysql> insert into textIntoNumberDemo values('John-12');
Query OK, 1 row affected (0.17 sec)
mysql> insert into textIntoNumberDemo values('John-2');
Query OK, 1 row affected (0.11 sec)
mysql> insert into textIntoNumberDemo values('John-4');
Query OK, 1 row affected (0.14 sec)
To display all records.
mysql> select *from textIntoNumberDemo;
Here is the output.
+---------+ | Name | +---------+ | John-11 | | John-12 | | John-2 | | John-4 | +---------+ 4 rows in set (0.00 sec)
Syntax to fetch digit.
SELECT yourColumnName,CONVERT(SUBSTRING_INDEX(yourColumnName,'-',-1),UNSIGNED INTEGER) AS yourVariableName FROM yourTableName order by yourVariableName;
The following is the query.
mysql> SELECT Name,CONVERT(SUBSTRING_INDEX(Name,'-',-1),UNSIGNED INTEGER) AS MyNumber -> FROM textIntoNumberDemo -> order by MyNumber;
Here is the output.
+---------+----------+ | Name | MyNumber | +---------+----------+ | John-2 | 2 | | John-4 | 4 | | John-11 | 11 | | John-12 | 12 | +---------+----------+ 4 rows in set (0.00 sec)
Updated on: 30-Jul-2019
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