REGEXP

База данных: MySQL

68747470733a2f2f7374796c65732e7265646469746d656469612e636f6d2f74355f32716d366b2f7374796c65

Syntax:
expr REGEXP pat, expr RLIKE pat

Returns 1 if the string expr matches the regular expression specified
by the pattern pat, 0 otherwise. If expr or pat is NULL, the return
value is NULL.

REGEXP and RLIKE are synonyms for REGEXP_LIKE().

For additional information about how matching occurs, see the
description for REGEXP_LIKE().

URL: https://dev.mysql.com/doc/refman/8.0/en/regexp.html

Example

mysql> SELECT 'Michael!' REGEXP '.*';
+------------------------+
| 'Michael!' REGEXP '.*' |
+------------------------+
| 1 |
+------------------------+
mysql> SELECT 'new*\n*line' REGEXP 'new\\*.\\*line';
+---------------------------------------+
| 'new*\n*line' REGEXP 'new\\*.\\*line' |
+---------------------------------------+
| 0 |
+---------------------------------------+
mysql> SELECT 'a' REGEXP '^[a-d]';
+---------------------+
| 'a' REGEXP '^[a-d]' |
+---------------------+
| 1 |
+---------------------+
mysql> SELECT 'a' REGEXP 'A', 'a' REGEXP BINARY 'A';
+----------------+-----------------------+
| 'a' REGEXP 'A' | 'a' REGEXP BINARY 'A' |
+----------------+-----------------------+
| 1 | 0 |
+----------------+-----------------------+