REGEXP vs LIKE Operators in MySQL
MySQL provides two main pattern-matching operators: LIKE and REGEXP. While both are used to search for patterns in strings, they differ significantly in syntax, features, and power.
Used for simple wildcard-based pattern matching.
%matches any sequence of characters._matches exactly one character.Case-insensitive by default in most collations.
Uses full regular expressions (much more powerful).
Supports character classes, anchors, quantifiers, alternation, etc.
Case-insensitive by default (unless using REGEXP BINARY).
LIKE is simple, using only % and _ wildcards.
REGEXP is complex and powerful, using full regular expression syntax.
LIKE matches the entire string implicitly, while REGEXP can match anywhere unless anchored (^ or $).
REGEXP supports quantifiers, alternation (|), groups, character classes, etc.
LIKE may be faster for simple patterns, while REGEXP is slower but more flexible.
In summary: Use LIKE for simple wildcard matching. Use REGEXP when you need advanced pattern matching with full regular expression capabilities.