Replace Mysql character substitution function SQL statement sharing (regular judgment) _mysql

Source: Internet
Author: User
Tags rar
Copy Code code as follows:

Update dede_addonsoft SET dxylink=replace (Dxylink, '. zip ', '. rar ') where aid > 45553;

Copy Code code as follows:

Update ' table_name ' SET field = replace (field, '. rar ', '. 7z ');

TABLE_NAME: The name of the table to query,
Field name in the list,
Replace (field, '. rar ', '. 7z '); : Regular match, replacing. rar in field fields with. 7z

MySQL Regular expression substitution, character substitution method

Two SQL, are character replacement, more useful.

Update comment set url=if (url REGEXP ' test.yahoo.com.cn ', replace (URL, ' www1.sohu.com ', ' www.sina.com '), replace (URL, ' Www2.yahoo.com ', ' www.sina.com ') where 1=1;

Update comment Set Author_url=replace (author_url, ' Sohu ', ' Sina ') where Author_url REGEXP ' www.sohu.com ';

MySQL Replace function replacement string

MySQL Replace function we often use, the following is a detailed description of the use of MySQL replace function, I hope that you learn the MySQL replace function can be enlightened.

Recently in the study of CMS, in the data conversion needs to use MySQL MySQL replace function, here a brief introduction.

For example, you want to replace the ABC of the F1 field in the table TB1 with Def

UPDATE tb1 SET f1=replace (F1, ' abc ', ' Def ');

REPLACE (STR,FROM_STR,TO_STR)
All occurrences of the string from_str in string str are replaced by TO_STR, which then returns the string:
mysql> SELECT REPLACE (' www.mysql.com ', ' w ', ' Ww ');
-> ' WwWwWw.mysql.com '
This function is multibyte-safe.

Example:
UPDATE ' dede_addonarticle ' SET BODY = REPLACE (body,
' </td> ',
'' );
UPDATE ' dede_addonarticle ' SET BODY = REPLACE (body,
' </tr> ',
'' );
UPDATE ' dede_addonarticle ' SET BODY = REPLACE (body,
' <tr> ',
'' );
UPDATE ' dede_archives ' SET title= REPLACE (title,
' Oceanic News-',
'' );
UPDATE ' dede_addonarticle ' SET BODY = REPLACE (body,
'.. /.. /.. /.. /.. /.. /',
' http://special.dayoo.com/meal/');

MySQL Replace

Usage 1.replace intoreplace into table (id,name) VALUES (' 1 ', ' AA '), (' 2 ', ' BB ')
The purpose of this statement is to insert two records into table tables.
2.replace (object, Search,replace)
Replace all occurrences of search in object with Replaceselect replace (' www.163.com ', ' w ', ' Ww ')--->www wWw.163.com

For example: Replace AA in the Name field in table tables with Bbupdate table set Name=replace (name, ' AA ', ' BB ')

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.