Using Square Brackets [ ] in MySQL REGEXP Patterns
In MySQL REGEXP patterns, square brackets [ ] are used to define a character class, which matches any one character from a specified set or range.
Basic Usage:
[abc]matches any single character 'a', 'b', or 'c'.Character Ranges:
[a-z]matches any lowercase letter from 'a' to 'z';[0-9]matches any digit from 0 to 9.Combining Ranges and Characters:
[A-Za-z0-9]matches any uppercase letter, lowercase letter, or digit.Negation:
[^a-z]matches any character not in the range 'a' to 'z'.Single Character Match: The character class matches exactly one character at that position in the string.
Using square brackets allows you to define flexible patterns that can match multiple possible characters at a specific position in the string.