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PHP PDO抛出致命错误1064(PHP PDO throwing Fatal error 1064)

我正在学习PDO和准备好的语句,并遇到了问题。 我一直收到这个错误:

Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[42000]: Syntax error
or access violation: 1064 You have an error in your SQL syntax; check the manual that
corresponds to your MySQL server version for the right syntax to use near ''Users' WHERE
Username = 'yayu'' at line 1' in /home/u230594705/public_html/pages/panel.php:33 Stack
trace:#0 /home/u230594705/public_html/pages/panel.php(33): PDOStatement->execute(Array) #1 
{main} thrown in /home/u230594705/public_html/pages/panel.php on line 33

使用此代码:

session_start();

$user = $_SESSION["user"];
$table = "Users";

//Establish Connection
$dsn = "mysql:host=$dbHost;dbname=$dbName;charset=utf8";
$opt = array(
        PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
        PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC
        );
$pdo = new PDO($dsn,$dbUser,$dbPass, $opt);

//Prepare query to execute
$stmt = $pdo->prepare("SELECT Username, Password, Email FROM ? WHERE Username = ?");

$stmt->execute(array($table, $user));
$row = $stmt->fetch();

//Check
echo $row['Username'];

任何帮助,将不胜感激!


I'm learning about PDO and prepared statements and have run into a problem. I keep getting this error:

Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[42000]: Syntax error
or access violation: 1064 You have an error in your SQL syntax; check the manual that
corresponds to your MySQL server version for the right syntax to use near ''Users' WHERE
Username = 'yayu'' at line 1' in /home/u230594705/public_html/pages/panel.php:33 Stack
trace:#0 /home/u230594705/public_html/pages/panel.php(33): PDOStatement->execute(Array) #1 
{main} thrown in /home/u230594705/public_html/pages/panel.php on line 33

with this code:

session_start();

$user = $_SESSION["user"];
$table = "Users";

//Establish Connection
$dsn = "mysql:host=$dbHost;dbname=$dbName;charset=utf8";
$opt = array(
        PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
        PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC
        );
$pdo = new PDO($dsn,$dbUser,$dbPass, $opt);

//Prepare query to execute
$stmt = $pdo->prepare("SELECT Username, Password, Email FROM ? WHERE Username = ?");

$stmt->execute(array($table, $user));
$row = $stmt->fetch();

//Check
echo $row['Username'];

Any help would be appreciated!


原文:https://stackoverflow.com/questions/18049805
更新时间:2022-12-17 11:12

最满意答案

请统计numberOfRecordsOnYourDB并执行以下操作:

set ROWCOUNT  (numberOfRecordsOnYourDB - 1000 )
delete from hugetable
Go

这将删除表中的记录,但会在指定的行数之后停止处理。

哦,不要忘记将ROWCOUNT设置回大值,或者只是打开一个新的连接来完成其他任务


count the numberOfRecordsOnYourDB and do:

set ROWCOUNT  (numberOfRecordsOnYourDB - 1000 )
delete from hugetable
Go

This will delete records from your table but stop processing after the specified number of rows.

oh and don't forget to set the ROWCOUNT back to a big value, or just open a new connection to do the other tasks

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