Which of the following returns an SQLSTATE code?

Solution (By Examveda Team)

This question is about how to get information about errors that happen when you're using MySQL.
Here's what each option does:
* Option A: mysql_error() - This function gives you a detailed human-readable description of the error that happened. It's good for understanding what went wrong in plain English.
* Option B: mysql_errno() - This function returns a numeric code that represents the error. It's useful for identifying specific error types.
* Option C: mysql_sqlstate() - This function gives you a five-character SQLSTATE code. This code is standardized across different databases, making it useful for consistent error handling.
* Option D: mysql_close() - This function closes the connection to the MySQL server. It doesn't give you any error information.
So, the answer is Option C: mysql_sqlstate() because it specifically returns an SQLSTATE code.