Find and Replace text in the entire table using a MySQL query

For a single table update

 UPDATE `table_name` SET `field_name` = replace(same_field_name, 'unwanted_text', 'wanted_text')

From multiple tables-

If you want to edit from all tables, best way is to take the dump and then find/replace and upload it back.

The easiest way I have found is to dump the database to a text file, run a sed command to do the replace, and reload the database back into MySQL.

All commands below are bash on Linux.

Dump database to text file

mysqldump -u user -p databasename > ./db.sql

Run sed command to find/replace target string

sed -i 's/oldString/newString/g' ./db.sql

Reload the database into MySQL

mysql -u user -p databasename < ./db.sql

Easy peasy.

Put this in a php file and run it and it should do what you want it to do.

// Connect to your MySQL database.$hostname = "localhost";$username = "db_username";$password = "db_password";$database = "db_name";mysql_connect($hostname, $username, $password);// The find and replace strings.$find = "find_this_text";$replace = "replace_with_this_text";$loop = mysql_query("    SELECT        concat('UPDATE ',table_schema,'.',table_name, ' SET ',column_name, '=replace(',column_name,', ''{$find}'', ''{$replace}'');') AS s    FROM        information_schema.columns    WHERE        table_schema = '{$database}'")or die ('Cant loop through dbfields: ' . mysql_error());while ($query = mysql_fetch_assoc($loop)){        mysql_query($query['s']);}