Question

我已经厌倦了CI框架，因为我甚至无法为MSSQL Server设置多个连接。我找到了一个论坛，其中描述了如何设置多个连接，但它对我来说效果不好 - mssql_query语句抛出错误链接标识符不是MSSQL-Link资源等。我做过这样的事情：

1）设置database.php - 数据库配置文件：

$active_group = 'suburb';
$active_record = FALSE;

$db['suburb']['hostname'] = 'XXXXXXXX';
$db['suburb']['username'] = 'XXXX';
$db['suburb']['password'] = 'XXXXXXX';
$db['suburb']['database'] = 'XXXXXXX';
$db['suburb']['dbdriver'] = 'mssql';
$db['suburb']['dbprefix'] = '';
$db['suburb']['pconnect'] = TRUE;
$db['suburb']['db_debug'] = TRUE;
$db['suburb']['cache_on'] = FALSE;
$db['suburb']['cachedir'] = '';
$db['suburb']['char_set'] = 'utf8';
$db['suburb']['dbcollat'] = 'utf8_general_ci';
$db['suburb']['swap_pre'] = '';
$db['suburb']['autoinit'] = TRUE;
$db['suburb']['stricton'] = FALSE;

$active_group = 'default';
$active_record = FALSE;

$db['default']['hostname'] = 'XXXXXX';
$db['default']['username'] = 'XXXX';
$db['default']['password'] = 'XXXXXXXX';
$db['default']['database'] = 'XXXXXX';
$db['default']['dbdriver'] = 'mssql';
$db['default']['dbprefix'] = '';
$db['default']['pconnect'] = TRUE;
$db['default']['db_debug'] = TRUE;
$db['default']['cache_on'] = FALSE;
$db['default']['cachedir'] = '';
$db['default']['char_set'] = 'utf8';
$db['default']['dbcollat'] = 'utf8_general_ci';
$db['default']['swap_pre'] = '';
$db['default']['autoinit'] = TRUE;
$db['default']['stricton'] = FALSE;

2）调用load dbs函数：

$this->suburbDb = $this->load->database('suburb', true);

3）创建了查询：

$res = mssql_query("
  SELECT TOP 100 ID 
  FROM Table", $this->suburbDb);

Answer 1

你应该用这样的东西初始化两个连接

$this->suburb  = $this->load->database('suburb', TRUE);
$this->default = $this->load->database('default', TRUE); 

$this->db; //<--- houlds the DEFAULT loaded from config file. can only be one

$query = $this->suburb->query('SELECT TOP 100 ID FROM Table');

foreach( $query->result() as $row)
{
....
}

应该是这样的。

PS。检查codeigniter指南：CodeIgniter Guide Database Connection

[编辑：没有活动记录]

在建立连接之后，mssql应该可以像这样执行：

// Send a select query to MSSQL
$query = mssql_query('SELECT TOP 100 ID FROM Table', $this->suburb );

// Check if there were any records
if (!mssql_num_rows($query)) {
    echo 'No records found';
} else {
    while ($row = mssql_fetch_array($query)) {
        echo $row['username'], PHP_EOL;
    }
}

// Free the query result
mssql_free_result($query);

Answer 2

你正在混合CI和php本机mssql驱动程序。

$this->suburbDb是CI数据库对象而非链接标识符：

$this->suburbDb->query('SELECT TOP 100 ID FROM Table');

http://codeigniter.com/user_guide/database/queries.html

或者，如果你真的需要那么

mssql_query($query, $this->suburbDb->conn_id)

CodeIgniter为mssql dbs设置了多个连接？

2 个答案: