Question

我已经安装了WAMP服务器。

尝试连接到Oracle时会出现此错误：

ORA-12541：TNS：没有听众

任何人都知道如何解决这个问题？

Answer 1

您的听众未启动（发出命令lsnrctl start）或您的tnsnames.ora错误。

Answer 2

在php.ini文件中进行更改通过删除启用oci驱动程序取消注释;分号检查正确的dll文件然后

试试这个简单的课程

def create
  if @user = User.find_by_email(params[:email])
    flash[:notice] = "Email address already in use!"
    redirect_to new_merchant_path
  else
    render 'form'
  end
end

只需保持error_reporting和display_errors为On即可查看错误。

class AdoConnection {

    public $dbh;

    public function __construct() {
        include_once '../adoconnection/adodb5/adodb.inc.php'; // include your adodb.inc.php file

        $server = "127.0.0.1";
        $user   = "USER/SCHEMA/Database";
        $pwd    = "password";
        $db     = "SID OR Service_Name";

        $this->dbh = NewADOConnection('oci8');
        $this->dbh->Connect(FALSE, $user, $pwd, '(DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = ' . $server. ')(PORT = 1521)) (CONNECT_DATA = (SERVICE_NAME = ' . $db . ') (SID = ' . $db . ')))');
    }

    public function select($sql) {
        $result = $this->dbh->Execute($sql);
        $result = $result->GetRows();
        return $result;
    }

    public function insert($sql) {
        $result = $this->dbh->Execute($sql);
        return $result;
    }
}

$dbh = new AdoConnection();

$dbh->select($sql);
$dbh->insert($sql);

尝试将adodb连接到Oracle时出错

2 个答案: