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(PHP 5 >= 5.1.0, PECL pdo >= 0.2.0)
PDOStatement::nextRowset — 在一个多行集语句句柄中推进到下一个行集
一些数据库服务支持返回一个以上行集(也被称为结果集)的存储过程。 PDOStatement::nextRowset() 使你能够结合一个 PDOStatement 对象访问第二个以及后续的行集。上述的每个行集可以有不同的列集合。
成功时返回 TRUE
, 或者在失败时返回 FALSE
。
Example #1 获取由一个存储过程返回的多个行集
下面例子展示了怎样调用一个存储过程,返回三个行集的 MULTIPLE_ROWSETS 。用一个 do / while 循环来循环调用 PDOStatement::nextRowset() 方法, 当不再有行集返回时返回 false 并结束循环。
<?php
$sql = 'CALL multiple_rowsets()' ;
$stmt = $conn -> query ( $sql );
$i = 1 ;
do {
$rowset = $stmt -> fetchAll ( PDO :: FETCH_NUM );
if ( $rowset ) {
printResultSet ( $rowset , $i );
}
$i ++;
} while ( $stmt -> nextRowset ());
function printResultSet (& $rowset , $i ) {
print "Result set $i :\n" ;
foreach ( $rowset as $row ) {
foreach ( $row as $col ) {
print $col . "\t" ;
}
print "\n" ;
}
print "\n" ;
}
?>
以上例程会输出:
Result set 1: apple red banana yellowResult set 2: orange orange 150 banana yellow 175Result set 3: lime green apple red banana yellow
[#1] et dot coder at gmail dot com [2014-10-14 13:37:57]
on MSSQL and 'dsn' => 'dblib:...',:
If you know how many count rowset then don't use contruction of do..while.
<?php
do {
$pdoStatement->fetchAll(\PDO::FETCH_ASSOC);
} while (
$pdoStatement->nextRowset()
);
?>
When I get large fetchAll(over 30) for second nextRowset. I get error - Segmentation fault.
Uses step-by-step insted do..while is fix for this bug:
<?php
$pdoStatement->fetchAll(\PDO::FETCH_ASSOC);
$pdoStatement->nextRowset();
$pdoStatement->fetchAll(\PDO::FETCH_ASSOC);
?>
[#2] guilleamathews at gmail dot com [2011-08-19 05:41:28]
PDO::nextRowset() does not appear to be currently supported by the Firebird PDO driver. Unfortunate.