search
Search
Login
Map of Data Science
menu
menu search toc more_vert
Robocat
Guest 0reps
Sign up
Log in
account_circleMy Profile homeAbout paidPricing
emailContact us
exit_to_appLog out
Map of data science
Thanks for the thanks!
close
Outline
Comments
Log in or sign up
Cancel
Post
account_circle
Profile
exit_to_app
Sign out
help Ask a question
Share on Twitter
search
keyboard_voice
close
Searching Tips
Search for a recipe:
"Creating a table in MySQL"
Search for an API documentation: "@append"
Search for code: "!dataframe"
Apply a tag filter: "#python"
Useful Shortcuts
/ to open search panel
Esc to close search panel
to navigate between search results
d to clear all current filters
Enter to expand content preview
icon_star
Doc Search
icon_star
Code Search Beta
SORRY NOTHING FOUND!
mic
Start speaking...
Voice search is only supported in Safari and Chrome.
Navigate to
A
A
brightness_medium
share
arrow_backShare
Twitter
Facebook
check_circle
Mark as learned
thumb_up
1
thumb_down
0
chat_bubble_outline
0
auto_stories new
settings

Performing regular expression replace in MySQL

Database
chevron_right
MySQL
chevron_right
Cookbooks
chevron_right
Functions Cookbooks
schedule Jul 1, 2022
Last updated
local_offer MySQL
Tags
tocTable of Contents
expand_more
map
Check out the interactive map of data science

We can perform regular expression replace in MySQL using the REGEXP_REPLACE(~) method.

Example

Consider the following table about some students:

student_id

fname

lname

day_enrolled

age

username

1

Sky

Towner

2015-12-03

17

stowner1

2

Ben

Davis

2016-04-20

19

bdavis2

3

Travis

Apple

2018-08-14

18

tapple3

4

Arthur

David

2016-04-01

16

adavid4

5

Benjamin

Town

2014-01-01

17

btown5

The above sample table can be created using the code here.

To replace all lowercase characters in student usernames with '-':

SELECT username, REGEXP_REPLACE(username, '[a-z]', '-', 1, 0, 'c')
FROM students;
+----------+---------------------------------------------------+
| username | REGEXP_REPLACE(username, '[a-z]', '-', 1, 0, 'c') |
+----------+---------------------------------------------------+
| stowner1 | -------1 |
| bdavis2 | ------2 |
| tapple3 | ------3 |
| adavid4 | ------4 |
| btown5 | -----5 |
+----------+---------------------------------------------------+
robocat
Published by Arthur Yanagisawa
Edited by 0 others
Did you find this page useful?
thumb_up
thumb_down
Ask a question or leave a feedback...
thumb_up
1
thumb_down
0
chat_bubble_outline
0
settings
Enjoy our search
Hit / to insta-search docs and recipes!