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问题描述

如果可能,我如何获取两个结果集:

If is posible, how can I fetch two results sets:

$sth=$dbh->prepare("SELECT * FROM tb1 WHERE cond1;
                    SELECT * from tb2 Where cond2");
$sth->execute();
$row=$sth->fetchAll();  print_r ($row);

这是两个完全不同的表(没有共同的字段).

These are two completely different tables (no fiels in common).

推荐答案

是的 PDO 可以获取两个(或更多)行集,只要您使用的数据库支持它.我认为 MS SQL ServerMySQL 都支持此功能,但在撰写本文时 SQLite 不支持.

Yes PDO can fetch two (or more) rowsets, as long as the database you are using supports it. I think MS SQL Server and MySQL both support this functionality, but at the time of writing SQLite does not.

你想要的函数是PDOStatement::nextRowset

所以在你上面的例子中,你可能会做类似的事情;

So in your example above, you might do something like;

$sth = $dbh->prepare("SELECT * FROM tb1 WHERE cond1;
                      SELECT * FROM tb2 WHERE cond2");
$sth->execute();
$rowset1 = $sth->fetchAll();
$sth->nextRowset();
$rowset2 = $sth->fetchAll();

print_r($rowset1);
print_r($rowset2);

单个存储过程返回多个行集是完全合理的.

It's perfectly reasonable for a single stored procedure to return more than one rowset.

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05-18 17:22