MySQL 145

This error occurs when a duplicate entry is attempted to be inserted into a table with a unique key. It indicates that the value being inserted already exists in the table and cannot be duplicated.

How It Affects Your App

The error message indicates that a duplicate entry has been attempted to be inserted into a table in the MySQL database. This can have a significant impact on the application, as it can cause data integrity issues, as well as prevent the application from functioning correctly. It can also lead to data loss, as the duplicate entry may overwrite existing data. Additionally, it can cause performance issues, as the database may take longer to process queries due to the presence of duplicate entries.

How To Fix

1. Check the error log for the MySQL 145 error:

$ ALTER TABLE table_name MODIFY column_name data_type;

2. Check the status of the MySQL server:

$ mysqladmin status

3. Check the MySQL configuration file for any errors:

$ cat /etc/my.cnf

4. Check the MySQL process list for any errors:

$ mysqladmin processlist

5. Check the MySQL database for any errors:

$ mysqlcheck -A

6. Restart the MySQL server:

$ service mysql restart

7. Use an automated database observability tool to monitor and fix the MySQL 145 in question. Automated database observability tools can provide real-time insights into the performance and health of your database, allowing you to quickly identify and fix any issues that may arise. These tools can also provide detailed metrics and logs that can help you diagnose and troubleshoot any MySQL 145 errors.

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