Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
827 views
in Technique[技术] by (71.8m points)

trim - How to remove new line characters from data rows in mysql?

I can loop through all of the rows in a php script and do

UPDATE mytable SET title = "'.trim($row['title']).'" where id = "'.$row['id'].'";

and trim can remove

But I was just wondering if something same could be done in one query?

 update mytable SET title = TRIM(title, '
') where 1=1

will it work? I can then just execute this query without requiring to loop through!

thanks

(PS: I could test it but table is quite large and dont want to mess with data, so just thought if you have tested something like this before)

Question&Answers:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)
UPDATE test SET log = REPLACE(REPLACE(log, '
', ''), '
', '');

worked for me.

while its similar, it'll also get rid of

http://lists.mysql.com/mysql/182689


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

2.1m questions

2.1m answers

60 comments

57.0k users

...