用Perl从oracle导出百万级数据到excelLinux认证考试

文章作者 100test 发表时间 2009:08:21 19:04:44
来源 100Test.Com百考试题网


  用Perl从oracle导出百万级数据到excel excel 2007 可以存放1048576行、16384列的数据;excel 2003大概是65535行 我从oracle中导出30万行60列的数据到excel中花了约8分钟。
  如果你还没有安装perl,按下面步骤
  步骤:
  1、下载并安装perl v5.8.8,可以使用perl -v查看是否安装成功,
  2、输入PPM命令打开perl的包管理器。找到并更新DBI,
  2、下载DBD-Oracle-1.17.zip解压到c:\perl 在命令行进入该目录执行: ppm install dbd-oracle.ppd 安装DBD-oracle;
  3、安装 Excel 模块,如果你能联网,直接使用如下命令即可:
  ppm install OLE::Storage_Lite
  ppm install Spreadsheet::ParseExcel
  ppm install Spreadsheet::WriteExcel4、将如下代码保存到d:\test.pl,更改里面的oracle的用户名和ip地址,以及端口号,以及sql语句
  5、在命令行进入d盘下执行:perl test.pl
  代码:
  $ENV{NLS_LANG} = AMERICAN_AMERICA.ZHS16GBK.
  use strict.
  use DBI.
  use Win32::OLE.
  use POSIX qw(strftime).my $now_string=strftime "%Y-%m-%d-%H-%M-%S", localtime.my $ti_s =strftime "%S", localtime.
  my $ti_m=strftime "%M", localtime.
  my $ti_h=strftime "%H", localtime.
  my $ti_old=$ti_s ($ti_m*60) ($ti_h*3600).
  my $excel_file = "d:\\$now_string".".xlsx".
  #在此修改你的sql
  my $sql = "0select * from table1".my($dbh,$sth,$row,$col,@field,$ele,$c_times,$residual,$cols,$cell_end).
  unlink $excel_file if (-e $excel_file).
  my $Excel = Win32::OLE->.GetActiveObject(Excel.Application) || Win32::OLE->.new(Excel.Application, Quit).
  my $Book = $Excel->.Workbooks->.add.
  my $Sheet = $Book->.Worksheets(1).
  my @array_cols=("","A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z").
  #在此修改你的oracle的用户名、密码、ip、端口,
  $dbh = DBI->.connect(dbi:Oracle:,q{scott/tiger@(DESCRIPTION=(ADDRESS = (PROTOCOL = TCP)(HOST = 10.XXX.XXX.XXX)(PORT = 1521)) (CONNECT_DATA=(SERVICE_NAME = test)))},"").$sth = $dbh->.prepare($sql).
  $sth->.execute().
  $row=1.
  $cols=0.if (@field = $sth->.fetchrow)
  { $cols=scalar(@field).
  $c_times=int($cols/26).
  $residual=$cols&.
  if ($cols<.27)
  {
  $cell_end = $array_cols[$cols].
  }
  else
  {
  if ($residual == 0)
  {
  $cell_end = $array_cols[$c_times-1]."Z".
  }
  else
  {
  $cell_end = $array_cols[$c_times].$array_cols[$residual].
  }
  }
  $Sheet->.Range("A1:$cell_end$row")->.{Value} = [@field].
  while(@field = $sth->.fetchrow)
  {
  $row .
  print ("正在导出第 $row 条记录!").
  print ("\n").
  $Sheet->.Range("A$row:$cell_end$row")->.{Value} = [@field].
  }
  $sth->.finish().
  $dbh->.disconnect().
  $Book->.SaveAs($excel_file).
  }
  undef($Sheet).
  undef($Book).
  undef($Excel).my $now_string1=strftime "%Y-%m-%d-%H-%M-%S", localtime.
  my $ti_s1 =strftime "%S", localtime.
  my $ti_m1=strftime "%M", localtime.
  my $ti_h1=strftime "%H", localtime.
  my $ti_new=$ti_s1 ($ti_m1*60) ($ti_h1*3600).print "************************************************************************\n\n".
  print"导出完成!开始时间:$now_string.\t结束时间:$now_string1 \n共耗时:\t".
  print $ti_new-$ti_old.
  print ("秒\n\n\n").
  print "************************************************************************\n\n".
  use Term::ReadKey.
  $| = 1.
  print "请按任意键退出...".
  <.STDIN>..
  ReadMode 4. # Turn off controls keys
  while (! defined ReadKey(-1)) {}
  ReadMode 0. # Reset tty mode
  $| = 0.

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