- Trending Categories
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
What are the different wildcard characters that can be used with MySQL RLIKE operator?
The use of wildcards with RLIKE operators can save a lot of effort when we write a query that looks for some pattern (regular expression) in character string. The wildcards used with RLIKE are:
^ − It signifies BEGINING of the string. In other words when we use this wildcard with RLIKE operator then it will find the pattern that begins with the particular string written after ^ wildcard
Example
mysql> Select Id, Name from Student WHERE Name RLIKE '^H'; +------+---------+ | id | Name | +------+---------+ | 15 | Harshit | +------+---------+ 1 row in set (0.00 sec)
$ − It signifies END of the string. In other words when we use this wildcard with RLIKE operator then it will find the pattern that ends with the particular string written after $ wildcard.
Example
mysql> Select Id, Name from Student WHERE Name RLIKE 'v$'; +------+--------+ | Id | Name | +------+--------+ | 1 | Gaurav | | 2 | Aarav | | 20 | Gaurav | +------+--------+ 3 rows in set (0.00 sec)
| −It means OR. In other words when we use this wildcard with RLIKE operator then it will find the string which will have either substring written with | wildcard.
Example
mysql> Select Id, Name from Student WHERE Name RLIKE 'Gaurav|raj'; +------+---------+ | Id | Name | +------+---------+ | 1 | Gaurav | | 20 | Gaurav | | 21 | Yashraj | +------+---------+ 3 rows in set (0.00 sec)
604 Views
