#!/usr/bin/perl

use strict;
use warnings;
use DBI;

my $db_name="geneva_admin";
my $db_passwd="geneva_admin";

my $dbh=DBI->connect("dbi:Oracle:","$db_name","$db_passwd")
  or die "Can't connect to oracle database:$DBI::errstr\n";
  
my $sth=$dbh->prepare("select a,b
      from a_tmp
      where a=2")
  or die "Can't prepare SQl prepare:$DBI::errstr\n";
$sth->execute or die "Can't execute:$DBI::errstr\n";
while (my @row = $sth->fetchrow_array()){
 my ($a,$b) = @row;
 print "1..\$a=$a,\$b=$b\n";
}
$sth->finish();

my $row=3;
my $sql="select a,b
  from  a_tmp
  where a = ?";
$sth=$dbh->prepare($sql) or die "Can't prepare SQl prepare:$DBI::errstr\n";
$sth->execute($row)  or die "Can't execute:$DBI::errstr\n";
while (my @row = $sth->fetchrow_array()){
 my ($a,$b) = @row;
 print "2..\$a=$a,\$b=$b\n";
}
$sth->finish();

my $row_a=3;
my $row_c=0;
$sql="select a,b
  from  a_tmp
  where a = ?
  and   c = ?";
$sth=$dbh->prepare($sql) or die "Can't prepare SQl prepare:$DBI::errstr\n";
$sth->execute($row_a,$row_c)  or die "Can't execute:$DBI::errstr\n";
while (my @row = $sth->fetchrow_array()){
 my ($a,$b) = @row;
 print "3..\$a=$a,\$b=$b\n";
}
$sth->finish();

for $row(1,2,3){
$sql="select a,b
  from  a_tmp
  where a = ?";
$sth=$dbh->prepare($sql) or die "Can't prepare SQl prepare:$DBI::errstr\n";
$sth->execute($row)  or die "Can't execute:$DBI::errstr\n";
while (my @row = $sth->fetchrow_array()){
 my ($a,$b) = @row;
 print "4..\$a=$a,\$b=$b\n";
}
}
$sth->finish();

#for $row(1,2,3){
#$sql="insert into a_tmp
#      values (?,?,?)";
#$sth=$dbh->prepare($sql) or die "Can't prepare SQl prepare:$DBI::errstr\n";
#$sth->execute($row,$row+1,$row+2)  or die "Can't execute:$DBI::errstr\n";
#}
##$dbh->commit;
#$sth->finish();

#$sql="insert into a_tmp
#      values (100,30,2)";
#$sth=$dbh->prepare($sql) or die "Can't prepare SQl prepare:$DBI::errstr\n";
#$sth->execute  or die "Can't execute:$DBI::errstr\n";
##$dbh->commit;
#$sth->finish();

for $row(1,2,3){
$sql="update a_tmp
      set b = ?
        , c = ?
      where a = ?";
$sth=$dbh->prepare($sql) or die "Can't prepare SQl prepare:$DBI::errstr\n";
$sth->execute($row+100,$row+50,$row)  or die "Can't execute:$DBI::errstr\n";
}
#$dbh->commit;
$sth->finish();

for $row(1,2,3){
$sql="delete from a_tmp
      where c=2";
$sth=$dbh->prepare($sql) or die "Can't prepare SQl prepare:$DBI::errstr\n";
$sth->execute  or die "Can't execute:$DBI::errstr\n";
}
#$dbh->commit;
$sth->finish();

$dbh->do("insert into a_tmp values (1,1,1)") or die "$DBI::errstr\n";
$dbh->do("delete from a_tmp where c=51")      or die "$DBI::errstr\n";
#$dbh->commit;
$sth->finish();

$dbh->disconnect;

来源：http://lsh-ao2.spaces.live.com/blog/cns!523629CBD68FDB0A!135.entry