Executes the SQL statement pointed to by the null-terminated string stmt_str. Normally, the string must consist of a single SQL statement without a terminating semicolon (;) or \g. If multiple-statement execution has been enabled, the string can contain several statements separated by semicolons. See Section 3.6.3, “Multiple Statement Execution Support”.

mysql_query() cannot be used for statements that contain binary data; you must use mysql_real_query() instead. (Binary data may contain the \0 character, which mysql_query() interprets as the end of the statement string.)

To determine whether a statement returns a result set, call mysql_field_count(). See Section 5.4.23, “mysql_field_count()”.

Zero for success. Nonzero if an error occurred.