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SQL Anywhere 12.0.1 » SQL Anywhere 服务器 - 编程 » Perl DBI 支持 » 使用 DBD::SQLAnywhere 的 Perl 脚本




必须先准备好返回多个结果集的 SQL 语句,然后才能执行它们。prepare 方法为该语句返回一个句柄。使用该句柄执行语句,然后检索关于结果集和每个结果集的行的元信息。

#!/usr/local/bin/perl -w
use DBI;
use strict;
my $database = "demo";
my $data_src = "DBI:SQLAnywhere:SERVER=$database;DBN=$database";
my $uid      = "DBA";
my $pwd      = "sql";
my $sel_stmt = "SELECT ID, GivenName, Surname
                  FROM Customers
                  ORDER BY GivenName, Surname;
                SELECT * 
                  FROM Departments 
                  ORDER BY DepartmentID"; 
my %defaults = (
     AutoCommit => 0, # Require explicit commit or rollback.
     PrintError => 0
my $dbh = DBI->connect($data_src, $uid, $pwd, \%defaults)
  or die "Cannot connect to $data_src: $DBI::errstr\n";
&db_query($sel_stmt, $dbh);

sub db_query {
      my($sel, $dbh) = @_;
      my($row, $sth) = undef;
      $sth = $dbh->prepare($sel);
      do {
          print "Fields:     $sth->{NUM_OF_FIELDS}\n";
          print "Params:     $sth->{NUM_OF_PARAMS}\n\n";
          print join("\t\t", @{$sth->{NAME}}), "\n\n";
          while($row = $sth->fetchrow_arrayref) {
             print join("\t\t", @$row), "\n";
          print "---end of results---\n\n";
      } while (defined $sth->more_results);
      $sth = undef;