Question

我遇到了一个非常简单的Perl进程的问题。我基本上是在查询Oracle数据库，我想将它加载到Excel中。我已经能够使用DBIx :: Dump并且它可以工作。但是，我需要能够使用各种Excel格式化工具。我认为Spreadsheet::WriteExcel是输出到Excel的最佳模块，允许我进行更多格式化。

以下是我得到的代码和错误。我基本上查询Oracle，获取数据，加载到数组并尝试写入Excel。由于某种原因，它正在进行某种比较，它不喜欢数据类型。例如，日期为'25 -OCT-08'。 SVP是'S01'。似乎在说它们不是数字。

错误：

Argument "01-NOV-08" isn't numeric in numeric ge <>=> at C:/Perl/site/lib/Spreadsheet/WriteExcel/Worksheet.pm line 3414.
Argument "01-NOV-08" isn't numeric in pack ge <>=> ge <>=> at C:/Perl/site/lib/Spreadsheet/WriteExcel/Worksheet.pm line 2157.

代码：

#!/usr/bin/perl -w 

#Set the Perl Modules
use strict; 
use DBI;
use Spreadsheet::WriteExcel;


# Connect to the oracle database
my $dbh = DBI->connect( 'dbi:Oracle:xxxx',
                        'xxxx',
                        'xxxx',
                      ) || die "Database connection not made: $DBI::errstr";


#Set up Query
my $stmt = "select 
                                   week_end_date, SVP, RD,
                                    DM, store, wtd_smrr_gain,QTD_SMRR_GAIN,
                                   wtd_bor_gain,QTD_BOR_GAIN,
                                   wtd_cust_gain,QTD_CUST_GAIN,
                                   wtd_CARD_CLOSED_OCT25,QTD_AVG_CARD_CL
                    from 
                          bonus_4Q_store
                    order by
                          store"; 

#Prepare Query
my $sth = $dbh->prepare($stmt); 

#Execute Query
$sth->execute() or die $dbh->errstr; 

my( $week_end_date,$SVP,$RD,$DM,$store,
    $wtd_smrr_gain,$QTD_SMRR_GAIN,
    $wtd_bor_gain,$QTD_BOR_GAIN,
    $wtd_cust_gain,$QTD_CUST_GAIN,
    $wtd_CARD_CLOSED_OCT25,$QTD_AVG_CARD_CL);

#binds each column to a scalar reference
$sth->bind_columns(undef,\$week_end_date,\$SVP,\$RD,\$DM,\$store,
                   \$wtd_smrr_gain,\$QTD_SMRR_GAIN,
                   \$wtd_bor_gain,\$QTD_BOR_GAIN,
                   \$wtd_cust_gain,\$QTD_CUST_GAIN,
                   \$wtd_CARD_CLOSED_OCT25,\$QTD_AVG_CARD_CL,);

#create a new instance
my $Excelfile = "/Test_Report.xls"; 
my $excel = Spreadsheet::WriteExcel->new("$Excelfile"); 
my $worksheet = $excel->addworksheet("WOW_SHEET");

#Create array shell
my @data;

#Call data and Write to Excel  
while ( @data = $sth->fetchrow_array()){ 
    my $week_end_date = $data[0]; 
    my $SVP = $data[1]; 
    my $RD = $data[2]; 
    my $DM = $data[3]; 
    my $store = $data[1]; 
    my $wtd_smrr_gain = $data[2]; 
    my $QTD_SMRR_GAIN = $data[3];
    my $wtd_bor_gain = $data[4];
    my $QTD_BOR_GAIN = $data[5];
    my $wtd_cust_gain = $data[6];
    my $QTD_CUST_GAIN = $data[7];
    my $wtd_CARD_CLOSED_OCT25 = $data[8];
    my $QTD_AVG_CARD_CL = $data[9];
    my $row = 0; 
    my $col = 0; 
    foreach my $stmt (@data) 
    { 
        $worksheet->write($row++, @data); 
        last; 
    } 
} 

print "DONE \n"; 
$sth->finish(); 
$dbh->disconnect();

Answer 1

问题在于：

foreach my $stmt (@data) 
{ 
    $worksheet->write($row++, @data); # !!
    last; 
}

write()的正确语法是：

write($row, $column, $token, $format)

您缺少$column参数，在这种情况下可能为0。

如果$stmt是数组引用，那么您可以按如下方式一次编写它：

$worksheet->write($row++, 0, $stmt);

Answer 2

我猜它会以字符串形式出现，当你试图将它插入日期列时，它没有隐式转换。

尝试选择这样的日期，然后将其转换为可用于比较的字符。

to_char(date, 'YYYY/MM/DD HH24:MI:SS')

然后

to_date(date, 'YYYY/MM/DD HH24:MI:SS')

将其转换回插入日期。这通常是您在SQL中需要做的事情。

我记得，perl为DBI提供了一个跟踪工具，可以更好地了解正在发生的事情。

如何使用Perl的DBI将日期值从Oracle转换为Excel？

2 个答案: