Php/docs/function.cubrid-unbuffered-query
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);?>
