MySQL
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'Duplicate entry for key 'PRIMARY'' on localhost
Expert Solution
Follow the steps below to resolve this error.
Explanation
This is a common error in MySQL related to Constraints.
It typically happens when:
- Configuration is incorrect.
- Syntax errors exist in the code.
- Services are not running.
Solution
To fix 'Duplicate entry for key 'PRIMARY'' on localhost, follow these steps:
- Check your log files.
- Verify your configuration.
- Restart the service.
# Example command
php artisan optimize:clear
Note: Always backup your data before running commands.
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