【发布时间】:2014-11-14 20:21:09
【问题描述】:
我有一个包含手机号码的数据库。如何编写将所有数字放入数组并检查新数字是否已存在于该数组中的 perl 脚本?
创建表:
CREATE TABLE consumeruser (
ConsumerId int(10) NOT NULL AUTO_INCREMENT,
ConsumerName varchar(45) DEFAULT NULL,
ConsumerMobNo varchar(10) DEFAULT NULL,
PRIMARY KEY (ConsumerId)
) ENGINE=InnoDB AUTO_INCREMENT=4494 DEFAULT CHARSET=latin1
脚本:
#!/usr/bin/perl -w
use strict;
use warnings qw(all);
use DBI;
use Getopt::Long;
use Pod::Usage;
use Text::CSV_XS;
my $username = 'root'; # set your MySQL username
my $password = 'xxxx'; # set your MySQL password
my $database = 'app'; # set your MySQL database name
my $server = 'localhost'; # set your server hostname (probably localhost)
my $dbh = DBI->connect( "DBI:mysql:$database;host=$server", $username, $password )
|| die "Could not connect to database: $DBI::errstr";
my $CustomerMobileNumber = 9999999;
my @MobileNumbers;
my $mobileNumberQuery = "select ConsumerMobNo from consumeruser";
my $sth = $dbh->prepare($mobileNumberQuery);
$sth->execute();
while ( my @row = $sth->fetchrow_array() ) {
push @MobileNumbers, $row;
if (/test for is present/) {
#9999999 found in array;
} else {
#9999999 not found in array;
}
}
【问题讨论】:
-
不是将所有数字从数据库中取出并放入数组中,而是使用 SELECT 查询来查看数据库中是否存在该数字。