直观地说,当我通过在查询中添加更多的单词来限制我的条件时,返回的行数应该更少。mysql> select count(*) from table1 WHERE MATCH (title, desc) AGAINST ('word');| count(*) || 76220 |1 row in set (0.08 sec)
mysql> select cou
如何计算表中的行数以及某个条件为真时的行数,而不需要像下面这样借助于子选择:insert into t (a) values (1), (2),(null);
(select count(*) from t) as total_lines,
(select count(*) from t where a = 1
include 'data/php/config.php';$result = mysql_query("SELECT COUNT(*) FROM megabase WHEREinclude 'data/php/config.php';$query = "SELECT COUNT(*) FROM megabase WHERE kla_a
它曾经工作过,但现在它有点坏了--它正在更新对已经在DB中有条目但没有为新页面添加条目的页面的单击。 echo "Could not connect to MySQL server.$rs = mysql_query("SELECT * FROM click_count WHERE page_url = '$curPage'