You have answered your own question:
although some databases and drivers do support this (notably Sybase and SQL Server).
From the documentation for DBD::Sybase:
DBD::Sybase has the ability to handle multi-statement SQL commands in a single batch. For example, you could insert several rows in a single batch like this: 
$sth = $dbh->prepare("
   insert foo(one, two, three) values(1, 2, 3)
   insert foo(one, two, three) values(4, 5, 6)
   insert foo(one, two, three) values(10, 11, 12)
   insert foo(one, two, three) values(11, 12, 13)
");
$sth->execute;

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Makeshifts last the longest.

In reply to Re: Batch DB query -- implementation? by Aristotle
in thread Batch DB query -- implementation? by zaimoni

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