How to Perform a Global Find and Replace Across an Entire MySQL Database?

Finding and Replacing Entire MySQL Database

The goal is to perform a global find and replace operation across an entire MySQL database. The question proposes altering the syntax below:

update [table_name] set [field_name] = replace([field_name],'[string_to_find]','[string_to_replace]');

Proposed Solution: Dump and Import

Instead of attempting to execute the find and replace operation directly, the answer suggests a more reliable approach:

• Dump the entire database to a text file using mysqldump.
• Perform the find and replace operation on the text file using a text editor or command-line tools.
• Import the modified text file into the database using mysql.

Steps:

1. Dump Database:

   mysqldump -u root -p[password] [database_name] > dumpfile.sql

2. Find and Replace:
   Open the dumpfile.sql in a text editor or use command-line tools like sed or grep to perform the find and replace operation.

3. Import Modified Dump:

   mysql -u root -p[password] [database_name] < dumpfile.sql

This approach ensures that all tables and data in the database are updated consistently, addressing the limitations of directly executing UPDATE statements.

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