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Finding only strings beginning with a number using MySQL Regex?
To find strings beginning with a number, use Regular Expressions. Let us first create a table −
mysql> create table DemoTable ( Id varchar(200) ); Query OK, 0 rows affected (0.59 sec)
Insert records in the table using insert command −
mysql> insert into DemoTable values('123User');
Query OK, 1 row affected (0.22 sec)
mysql> insert into DemoTable values('_$123User');
Query OK, 1 row affected (0.22 sec)
mysql> insert into DemoTable values('User123456');
Query OK, 1 row affected (0.13 sec)
mysql> insert into DemoTable values('0000User');
Query OK, 1 row affected (0.22 sec)
mysql> insert into DemoTable values('&^*User');
Query OK, 1 row affected (0.24 sec)Display records from the table using select command −
mysql> select *from DemoTable;
This will produce the following output −
+------------+ | Id | +------------+ | 123User | | _$123User | | User123456 | | 0000User | | &^*User | +------------+ 5 rows in set (0.00 sec)
Here is the query to find strings starting with a number using MySQL Regexp −
mysql> SELECT DISTINCT Id FROM DemoTable WHERE Id REGEXP '^[0-9]';
This will produce the following output −
+----------+ | Id | +----------+ | 123User | | 0000User | +----------+ 2 rows in set (0.58 sec)
Updated on: 30-Jul-2019
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