Returns the error text from the last MySQL function. Errors coming back from the MySQL database backend no longer issue warnings. Instead, use mysql_error() to retrieve the error text.

2025年3月26日 · This is the MySQL 8.0 Error Message Reference. It lists all error messages produced by server and client programs in MySQL 8.0. This document accompanies Error Messages and Common Problems, in MySQL 8.0 Reference Manual.

The error / mysqli_error() function returns the last error description for the most recent function call, if any.

2023年1月27日 · While MySQL error codes are useful, understanding what they mean can be difficult. This article looks at common MySQL error codes, non-coded errors, and how to fix them. Each MySQL error includes: An error number: A MySQL …

2024年6月12日 · In this article, we will explore some of the most common MySQL errors encountered by the users, their causes, and troubleshooting steps. Error Message: Troubleshooting Steps: Check MySQL Service: Ensure that the MySQL server is running. On Linux, use: On Windows, check the MySQL service in the Services application.

2024年11月2日 · The “Call to undefined function mysql_error()” error is a clear indicator that our PHP code is outdated. By understanding the reasons behind this error and following the troubleshooting steps outlined above, we can fix the issue and ensure our code remains compatible with the latest PHP versions.

Try making various errors in the SQL query and see the message that MySQL returns through the mysql_error() function, to see how it responds. This will help you identify SQL errors better in the future.

This appendix describes the types of error information MySQL provides and how to obtain information about them. The final section is for troubleshooting. It describes common problems …

Each server error message includes an error code, SQLSTATE value, and message string, as described in Error Message Sources and Elements. These elements are available as described in Error Information Interfaces.

2019年3月7日 · Oftentimes, the root cause of slowdowns, crashes, or other unexpected behavior in MySQL can be determined by analyzing its error logs. On Ubuntu systems, the default location for the MySQL is /var/log/mysql/error.log.