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DB Replacer is a special component for Joomla, which you can use to find and replace the tables and rows in the database. Also supports regular expressions and case sensitivity.
DB Replacer

To replace a row in a database table, you should:
go to DB Replacer in your Joomla administrative panel.
choose the table and columns in the table cells.
enter search and replace text.
click “replace”
DB Replacer gives you the opportunity to see the changes before their actual use, so you can always correct the mistakes.
You can configure the options as needed under “Options”.