MySQL :: MySQL 8.4 C API Developer Guide :: 5.4.62 mysql_real_query() (original) (raw)

Description

Note

mysql_real_query() is a synchronous function. Its asynchronous counterpart ismysql_real_query_nonblocking(), for use by applications that require asynchronous communication with the server. SeeChapter 7, C API Asynchronous Interface.

mysql_real_query() executes the SQL statement pointed to by stmt_str, a string length bytes long. 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. SeeSection 3.6.3, “Multiple Statement Execution Support”.

mysql_query() cannot be used for statements that contain binary data; you must usemysql_real_query() instead. (Binary data may contain the \0 character, which mysql_query() interprets as the end of the statement string.) In addition,mysql_real_query() is faster than mysql_query() because it does not call strlen() on the statement string.

To determine whether a statement returns a result set, callmysql_field_count(). SeeSection 5.4.23, “mysql_field_count()”.

Return Values

Zero for success. Nonzero if an error occurred.