如何在SQL中選擇和COUNT行？

Question

如何獲得結果並計算結果一個查詢？ （IM使用PDO語句）

SELECT * FROM table; // gets results 
SELECT COUNT(*) FROM table; // counts results 

Answer 1

$result = mysql_query("SELECT * FROM table"); 
$count = mysql_num_rows($result); 

使用PDO：

$statement = $dbh->prepare('SELECT * FROM table'); 
$statement->execute(); 
$count = $statement->rowCount(); 

Answer 2

這將使記錄計數在每行的末尾。

SELECT * 
    , COUNT(1) OVER() AS RecordCount 
FROM table; 

Answer 3

SELECT *, (select count(*) FROM table) ct FROM table 

Answer 4

你應該執行只有一個查詢...

$sql = SELECT * FROM table; 
$res = mysql_query($sql); 

你可以通過mysql_num_rows總數（）;功能..像這樣..

$count = mysql_num_rows($res);