# cubrid_unbuffered_query

(PECL CUBRID >= 8.3.0)

cubrid_unbuffered_query — Perform a query without fetching the results into memory

### 说明

cubrid_unbuffered_query ( string `$query` [, resource `$conn_identifier` ] ) : resource

This function performs a query without waiting for that all query results have been complete. It will return when the results are being generated.

### 参数

`query`

  A SQL query.

`conn_identifier`

  The CUBRID connection. If the connection identifier is not specified, the last connection opened by cubrid_connect() is assumed.

### 返回值

For SELECT, SHOW, DESCRIBE or EXPLAIN statements returns a request identifier resource on success.

For other type of SQL statements, UPDATE, DELETE, DROP, etc, returns `TRUE` on success.

`FALSE` on failure.

### 注释

> Note:

> The benefits of cubrid_unbuffered_query() come at a cost: you cannot use cubrid_num_rows() and cubrid_data_seek() on a result set returned from cubrid_unbuffered_query().

### 范例

Example #1 cubrid_unbuffered_query() example

    <?php
        $link = cubrid_connect("localhost", 30000, "demodb", "dba", "");
        if (!$link)
        {
            die('Could not connect.');
        }
        $query = "select * from code";
        $result = cubrid_unbuffered_query($query, $link);

        while ($row = cubrid_fetch($result))
        {
            var_dump($row);
        }

        cubrid_close_request($result);
        cubrid_disconnect($link);
    ?>