mysql_select_db('baidu');
mysql_query("DELETE FROM `clicked` WHERE date < '$date'");
mysql_select_db('baidu1');
mysql_query("DELETE FROM `clicked` WHERE date < '$date'");
mysql_select_db('baidu2');
mysql_query("DELETE FROM `clicked` WHERE date < '$date'");这里的mysql_query是执行上面的吗 最近打开的?
mysql_query("DELETE FROM `clicked` WHERE date < '$date'");
mysql_select_db('baidu1');
mysql_query("DELETE FROM `clicked` WHERE date < '$date'");
mysql_select_db('baidu2');
mysql_query("DELETE FROM `clicked` WHERE date < '$date'");这里的mysql_query是执行上面的吗 最近打开的?
你这3句mysql_query分别对应了三个不同的库"baidu"、"baidu1"、"baidu2"..所以删除的也是三个不同库中的数据.
$date 的记录其他类是
mysql_query("DELETE FROM baidu.clicked WHERE date < '$date'");
mysql_query("DELETE FROM baidu1.clicked WHERE date < '$date'");
mysql_query("DELETE FROM baidu2.clicked WHERE date < '$date'");
这样你也不用担心是不是打开那个数据库了,绝对安全,呵呵,