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$dbh->do("CREATE TABLE IF NOT EXISTS temp_selectedTitles (title VARCHA
+R(128), author VARCHAR(128), location VARCAR(128))");

my $number_of_rows_waiting_to_commit = 0;
...
my $sql = "INSERT IGNORE INTO $DT_table (title, author, location) VALU
+ES ".join(", ", ("(?, ?, ?)") x $number_of_rows_waiting_to_commit);
my $store_2 = $dbh->prepare($sql);
$store_2->execute(@chunk_of_values_for_database);