How to Replace Data in an Entire MySQL Database?

Finding and Replacing Data in an Entire MySQL Database

Developers seeking to replace strings across an entire MySQL database may encounter limitations with table-specific find and replace methods. Here's how to overcome this challenge:

Using an asterisk () in the "update " syntax will not alter the contents of the entire database. Instead, consider utilizing a more robust approach:

Dump and Replace (Using a Text File)

1. Dump the Database to a Text File:

   mysqldump -u root -p[root_password] [database_name] > dumpfilename.sql

2. Find and Replace in the Text File:
   Use a text editor or command-line tools (e.g., sed, awk) to perform the necessary find and replace operations on the dumpfilename.sql file.

3. Re-Import the Dumped Database:

   mysql -u root -p[root_password] [database_name] < dumpfilename.sql

This method allows for comprehensive find and replace operations across all database tables. Remember to back up your database before proceeding with any alterations.

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