Perl Mysql資料庫操作實現代碼
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上載者:User
一. 安裝DBI模組
步驟1:
從TOOLS欄目中下載DBI.zip,下載完後用winzip解開到一個temp目錄,共有三個檔案:
Readme
DBI.ppd
DBI.tar.gz
步驟2:
在DOS視窗下,temp目錄中運行下面的DOS命令:
ppm install DBI.ppd
如果提示無效命令,可在perl/bin目錄下運行
二. 安裝DBD-Mysql模組
從軟體下載中下載DBD-Mysql.zip,安裝方法同一.
三. 準備資料庫
啟動mysql,首先建立一個資料庫mydata,然後建立一個表address
mysql> create database mydata;
Query OK, 1 row affected (0.00 sec)
mysql> use mydata;
Database changed
mysql> create table address (
-> id int(5) not null,
-> name varchar(40) not null,
-> email varchar(50) not null,
-> telephone int(12) null);
Query OK, 0 rows affected (0.05 sec)
輸入些資料:
mysql> insert into address values (
-> 1,'Nighthawk','nighthawk@163.net',92384092);
Query OK, 1 row affected (0.00 sec)
四. 下面用perl程式來插入若干記錄並做查詢.
use DBI;
#串連資料庫mydata
my $dbh = DBI->connect('DBI:mysql:mydata') or die "無法串連資料庫: " . DBI->errstr;
print "插入若干記錄\n";
my $sth = $dbh->prepare(q{
INSERT INTO address (id, name,email,telephone) VALUES (?, ?, ?, ?)
}) });
print "輸入記錄,斷行符號結束:";
while ($inputdata =<>) {
chop $inputdata;
last unless($inputdata);
my ($id, $name,$email, $tel) = split( /,/, $inputdata);
$sth->execute($id, $name, $email,$tel)
}
# $dbh->commit;
print "下面根據輸入的名字列印出EMAIL地址和電話\n";
my $sth = $dbh->prepare('SELECT * FROM address WHERE name=?')
or die $dbh->errstr;
print "請輸入姓名,斷行符號結束:";
while ($inputname =<>) {
my @data;
chomp $inputname;
last unless($inputname);
$sth->execute($inputname) or die "錯誤: " . $sth->errstr;
while (@data = $sth->fetchrow_array()) {
print "Email:$data[2]\t Telephone:$data[3]\n";
}
}
#中斷連線
$dbh->disconnect;
Nighthawk