Check if a string contains number with more than 5 digits - mysql

Question

I am trying to build a query that checks whether the string contains at least more than 5 consecutive digits or not.
Query;
SELECT count(id) as gV FROM someTable WHERE ... title REGEXP '(\d{5,})' order by id limit 0,10
Sample data
Some text here 123456 (MATCH)
S0m3 t3xt h3r3
Some text 123 here 345
98765 Some text here (MATCH)
Some12345Text Around (MATCH)
Desired output
3 (Some text here 123456, 98765 Some text here, Some12345Text Around)
Is there any specific rules for regex in MySQL queries?

Answer 1

MySQL's regular expression engine does not implement the \d "digit" expression, but instead you can represent it either as a character class range like [0-9] or as the special character class [[:digit:]]. The curly brace repeat syntax {5,} is supported in the form you've attempted.
The available regular expression syntax is described in the manual
So you can use either of the following forms:
title REGEXP '[0-9]{5,}'
title REGEXP '[[:digit:]]{5,}'
Examples:
Non matching:
> SELECT '123' REGEXP '[[:digit:]]{5,}';
+--------------------------------+
| '123' REGEXP '[[:digit:]]{5,}' |
+--------------------------------+
| 0 |
+--------------------------------+
> SELECT '1X345' REGEXP '[0-9]{5,}';
+--------------------------------+
| '123' REGEXP '[0-9]{5,}' |
+--------------------------------+
| 0 |
+--------------------------------+
Matching examples:
> SELECT '98765 Some text here' REGEXP '[[:digit:]]{5,}';
+-------------------------------------------------+
| '98765 Some text here' REGEXP '[[:digit:]]{5,}' |
+-------------------------------------------------+
| 1 |
+-------------------------------------------------+
> SELECT 'Some text here 123456' REGEXP '[0-9]{5,}';
+--------------------------------------------+
| 'Some text here 123456' REGEXP '[0-9]{5,}' |
+--------------------------------------------+
| 1 |
+--------------------------------------------+
1 row in set (0.00 sec)