MySQL database has a handy and simple string function REPLACE() that allows table data with the matching string (from_string) to be replaced by new string (to_string). This is useful if there is need to search and replace a text string which affects many records or rows, such as change of company name, postcode, URL or spelling mistake.<\/p>\n
The syntax of REPLACE is REPLACE(text_string, from_string, to_string)<\/p>\n
MySQL reference describes REPLACE as function that returns the string text_string with all occurrences of the string from_string replaced by the string to_string, where matching is case-sensitive when searching for from_string. text_string can be retrieved from the a field in the database table too. Most SQL command can be REPLACE() function, especially SELECT and UPDATE manipulation statement.<\/p>\n
For example:<\/p>\n
\r\nupdate TABLE_NAME set FIELD_NAME = replace(FIELD_NAME, 'find this string', 'replace found string with this string');\r\n\r\nupdate jos_docman set dmurl = replace(dmurl, 'click.net', 'm4u.com.pk')\r\n<\/pre>\nThe above statement will replace all instances of ‘click.net’ to ‘m4u.com.pk’ in the field of dmurl of jos_docman table.<\/p>\n
Enjoy!<\/p>\n","protected":false},"excerpt":{"rendered":"
MySQL database has a handy and simple string function REPLACE() that allows table data with the matching string (from_string) to be replaced by new string (to_string). This is useful if there is need to search and replace a text string which affects many records or rows, such as change of company name, postcode, URL or […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_s2mail":"no","jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false},"version":2}},"categories":[12,95],"tags":[335,18,334,333],"class_list":["post-763","post","type-post","status-publish","format-standard","hentry","category-programming","category-system-administration","tag-joomla","tag-mysql","tag-replace","tag-sql"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p12j6H-cj","_links":{"self":[{"href":"https:\/\/blogs.silicontechnix.com\/index.php?rest_route=\/wp\/v2\/posts\/763","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.silicontechnix.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.silicontechnix.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.silicontechnix.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.silicontechnix.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=763"}],"version-history":[{"count":2,"href":"https:\/\/blogs.silicontechnix.com\/index.php?rest_route=\/wp\/v2\/posts\/763\/revisions"}],"predecessor-version":[{"id":765,"href":"https:\/\/blogs.silicontechnix.com\/index.php?rest_route=\/wp\/v2\/posts\/763\/revisions\/765"}],"wp:attachment":[{"href":"https:\/\/blogs.silicontechnix.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=763"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.silicontechnix.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=763"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.silicontechnix.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=763"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}