Quick Search:
Oracle PL/SQL Code Library
Find Or Post Oracle Jobs
Oracle Discussion & Chat
 Oracle PL/SQL: Regular Expressions - REGEXP_LIKE Jump to:  
Category: >> Oracle PL/SQL >> Regular Expressions - REGEXP_LIKE Bookmark and Share

<< lastnext >>

Snippet Name: Regular Expressions - REGEXP_LIKE

Description: REGEXP_LIKE is similar to the LIKE condition, except REGEXP_LIKE performs regular expression matching instead of the simple pattern matching performed by LIKE. This condition evaluates strings using characters as defined by the input character set.

Also see:
» Regular Expressions - REGEXP_SUBSTR
» Regular Expressions - REGEXP_REPLACE
» Regular Expressions - RegExp examples ...
» Regular Expressions - RegExp examples ...
» Regular Expressions - RegExp examples...
» Regular Expressions - Regexp Cheat She...
» RegExp - Append first name first lette...

Comment: (none)

Language: PL/SQL
Highlight Mode: PLSQL
Last Modified: March 14th, 2009

REGEXP_LIKE(source_string, pattern [, match_parameter ])
-- examples:
-- Select domains that contain 2 and only 2 letters:
FROM domains
WHERE regexp_like (key, '^[a-z]{2}$');
-- The following query returns the first and last names for 
-- those employees with a first name of Steven or Stephen 
- (WHERE first_name begins WITH 'Ste' AND ends WITH 'en' AND IN 
-- between is either 'v' or 'ph'):
SELECT first_name, last_name
FROM employee_table
WHERE REGEXP_LIKE (first_name, '^Ste(v|ph)en$');
-- This query returns the last name for employees with a 
-- double vowel in their last name (where last_name contains 
-- two adjacent occurrences of either a, e, i, o, or u, 
-- regardless of case):
SELECT last_name
FROM employee_table
WHERE REGEXP_LIKE (last_name, '([aeiou])\1', 'i');
De Maab
-- search for valid email addresses:
SELECT page_content 
FROM test_list
WHERE REGEXP_LIKE (page_content, '[A-Z0-9._%-][email protected][A-Z0-9._%-]+\.[A-Z]{2,4}');
-- search only for '.com' email addresses:
SELECT email 
FROM email_list 
WHERE REGEXP_LIKE (email, '[A-Z0-9._%-][email protected][A-Z0-9._%-]+\.com');

Oracle Magazine
and Oracle White Papers

SQL University.net courses meet the most demanding needs of the business world for advanced education in a cost-effective manner. SQL University.net courses are available immediately for IT professionals and can be taken without disruption of your workplace schedule or processes.

Compared to traditional travel-based training, SQL University.net saves time and valuable corporate resources, allowing companies to do more with less. That's our mission, and that's what we deliver.

Click here to find out more
Home      :      Code Library      :      Sponsors      :      Privacy      :      Terms of Use      :      Contact Us 30 users online    © 2009 psoug.org

Forgot your password?