


How to Perform a Global Find and Replace Across an Entire MySQL Database?
Nov 10, 2024 pm 03:56 PMFinding 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:
-
Dump Database:
mysqldump -u root -p[password] [database_name] > dumpfile.sql
Copy after login -
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. -
Import Modified Dump:
mysql -u root -p[password] [database_name] < dumpfile.sql
Copy after login
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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