perl 安装DBI和DBD
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还可以从cpan.perl.org站点下载tar压缩文件形式的源代码发行版本，解压缩后，切换到相应的文件目录cd DBI-1.54perl Makefile.PLmakemake testmake install安装DBD时候 需要export ORACLE_HOME验证安装:perldoc DBD::OracleDBD 版本[oracle@oadb ~]$ perldoc -m DBD::Oracleperldoc DBI在线文档；perldoc -m DBIperl DBI版本:perl -MDBI -le 'print $DBI::VERSION;'查看安装路径:[oracle@dwh1 ~]$ perldoc -l DBI/usr/local/lib64/perl5/DBI.pm配置用户环境变量:export ORACLE_OWNER=oracleexport ORACLE_BASE=/oracle/appexport ORACLE_HOME=/oracle/app/product/11.2.0/db_1export ORACLE_SID=dwh1export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/usr/libexport NLS_DATE_FORMAT="YYYY-MM-DD"export PATH=/usr/lib64/qt-3.3/bin:/usr/kerberos/bin:/usr/local/bin:/bin:/usr/bin:/home/oracle/bin:/oracle/app10g/product/10.2.0/db/bin######################################################export LC_CTYPE=en_US.UTF-8export NLS_LANG=AMERICAN_AMERICA.ZHS16GBKCLASSPATH=$ORACLE_HOME/JRE:$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib;export CLASSPATHexport JAVA_OPTS=-Djava.awt.headless=true#!/usr/bin/perl use strict;use DBI;my $dbName = 'dev2';my $dbUser = 'hr';my $dbUserPass = 'hr';my $dbh = DBI->connect("dbi:Oracle:$dbName", $dbUser, $dbUserPass) or die "can't connect to database " . $DBmy $hostSql = qq{select table_name,tablespace_name,status from user_tables};#你用print是打印sql语句和sth对象，看到这个说明没有错误#另外，perl中打印对象或其它复杂数据结构最好用use Data::Dumper;print Dumper $obj;这种形式，要不你就只能看到HA#$dbh->prepare($sql),只是生成了一个statement handle对象而已，该对象调用execute后，通过它的fetchrow_array()就#my $sql = "select count(*) from dba_users";print "$sql..\n";my $sth = $dbh->prepare($sql);print "$sth..\n";$sth->execute();my $count = $sth->fetchrow_array();print "$count....\n";$sth->finish;my ($table_name, $tablespace_name, $status);my $selStmt = $dbh->prepare($hostSql);$selStmt->bind_columns(undef, \$table_name, \$tablespace_name, \$status);$selStmt->execute();while( $selStmt->fetch() ){ print "$table_name\t\t$tablespace_name\t\t$status\n";}$selStmt->finish;$dbh->disconnect;
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