ah I see how to do placeholder. That's a neat trick. 
my $th=$dbh->prepare(qq(SELECT COUNT(1) FROM Sequence WHERE Seq_Checks
+um=?));
$th->execute($crc32);

[download]

In reply to Re^3: checking mySQL database for unique CRC32 as proxy for long string by diyaz
in thread checking mySQL database for unique CRC32 as proxy for long string by diyaz

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