int mysql_real_query(MYSQL *mysql, const char *query, unsigned int length)
20.4.41.1 Description
Executes the SQL query pointed to by query, which should be a string
length
bytes long. The query must consist of a single SQL statement.
You should not add a terminating semicolon (`;') or \g
to the
statement.
You must use mysql_real_query()
rather than
mysql_query()
for requêtesthat contain binary data, since binary data
may contain the `\0' character. In addition, mysql_real_query()
is faster than mysql_query()
since it does not call strlen()
on
the query string.
20.4.41.2 Return values
Zero if the query was successful. Non-zero if an error occurred.
20.4.41.3 Errors
CR_COMMANDS_OUT_OF_SYNC
-
Commands were executed in an improper order.
CR_SERVER_GONE_ERROR
-
The MySQL server has gone away.
CR_SERVER_LOST
-
The connection to the server was lost during the query.
CR_UNKNOWN_ERROR
-
An unknown error occurred.