const char *mysql_stmt_error(MYSQL_STMT
*stmt)
For the statement specified by stmt,
mysql_stmt_error() returns a
null-terminated string containing the error message for the most
recently invoked statement API function that can succeed or
fail. An empty string ("") is returned if no
error occurred. Either of these two tests can be used to check
for an error:
if(*mysql_stmt_errno(stmt))
{
// an error occurred
}
if (mysql_stmt_error(stmt)[0])
{
// an error occurred
}The language of the client error messages may be changed by recompiling the MySQL client library. Currently, you can choose error messages in several different languages.
A character string that describes the error. An empty string if no error occurred.
None.

User Comments
If you want installation-language-neutral (that is, always in English) error reporting that is more descriptive than the numerical error codes, you may wish to convert the names of the constants from mysqld_error.h into text strings.
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