$sth = $dbh->prepare($sql); foreach (@ValueList) { $sth->execute($_); } #### foreach (@ValueList) { $dbh->do("Interpolated sql statement"); } #### #!/usr/bin/perl -w use strict; use Benchmark qw/:all/; my $times = shift; sub UpdateDBIar { my ($arsql) = @_; use DBI; my $dbh = DBI->connect("dbi:mysql:database=SchoolToolsDev;host=localhost;user=stadmin;password=stadmin") or die "Couldn't connect to database $DBI::errstr\n"; foreach my $sql (@$arsql) { $dbh->do($sql) or die "Couldn't execute sql: $sql $dbh->errstr"; } } sub UpdateDBIar2 { my ($arargs) = @_; use DBI; my $dbh = DBI->connect("dbi:mysql:database=SchoolToolsDev;host=localhost;user=stadmin;password=stadmin") or die "Couldn't connect to database $DBI::errstr\n"; foreach my $argset (@$arargs) { my $sql = $argset->[0]; my $artemp = $argset->[1]; my $sth = $dbh->prepare($sql); foreach my $arg (@$artemp) { $sth->execute(join ',', @$arg); } } } my $crCode1 = sub { my @Result = (10734..10845); my @Took = (qw/Baseline Q1 Q2 Q3 Q4/); my $arargs; foreach my $Took (@Took) { my $sql = "UPDATE Tests SET $Took = '1' WHERE ID = ?"; my $artemp; foreach (@Result) { push @$artemp, [$_]; } push @$arargs, [$sql, $artemp]; } UpdateDBIar2($arargs); }; my $crCode2 = sub { my @Result = (10734..10845); my @Took = (qw/Baseline Q1 Q2 Q3 Q4/); my @sqls; foreach my $Took (@Took) { foreach (@Result) { push @sqls, "UPDATE Tests SET $Took = '1' WHERE ID = '$_'"; } } UpdateDBIar(\@sqls); }; timethese ($times, { Code1 => $crCode1, Code2 => $crCode2, } );