Build Your Own DatabaseDriven Website Using PHP amp;amp; MySQL [Electronic resources] نسخه متنی

mysql_db_query

mysql_db_query(db_name, sql_query[, link_id])

This function selects the MySQL database identified by db_name as
if with mysql_select_db, and then executes the specified
MySQL query (sql_query). If the MySQL connection identifier
(link_id) is not specified, PHP will use the currently
active connection. If no such connection exists, PHP will attempt to open
a connection by implicitly calling mysql_connect with
default parameters.

If the query fails, an error message to that effect will be displayed
unless ''@'' is added to the beginning of the function name,
and the function will return false instead of a result
identifier (which evaluates to true). If the error occurred
due to an error in the SQL query, the error number and message can be obtained
using mysq_errno and mysql_error respectively.

The function name mysql may also be used, but is
deprecated.