The Perl DBI module connects to the PostgreSQL database

Recently, I was working on a website. Because I took over the website last week, and the boss requested that the website be completed by next Monday. I am not familiar with PHP templates and PostgreSQL databases. I used to use MySQL more often. Although the Code of that website is Php, it has been completely unrecognizable, and the website system is Ubuntu Linux. At present, there is a lot of data to be imported into the database (From Around 1986 to the present ), phpPgAdmin cannot be remotely accessed, and even the Perl DBI module does not exist. I installed it for one afternoon and it was not successful. It is a nightmare for me.
Fortunately, I installed the Perl DBI module in my notebook. Why not log on from the local machine?
A sudden flash of light flashed in front of me, just as a person who fell into the abyss grabbed a straw. I studied the ipvs configuration file and asked her to allow remote connection. Then, I wrote a Database Connection Program locally using Perl DBI. After a variety of depressing transcoding problems, I finally completed it all this afternoon.
Now I have pasted the database connection code to help people who encounter the same problem.
For Perl DBI programming, the premise is that the DBI module and DBD: PG module have been installed on the local machine.
[Note] install the Perl Module

1. $ CPAN <br/> 2. $ install DBI <br/> 3. $ install DBD: PG <br/> test environment SuSE 10.1 <br/> kernel 2.6.16, Perl 5.8.8, remote server PostgreSQL 8.1 <br/> -------------------------------------------------- <br/> #! /Usr/bin/perl-W <br/> # copyright @ <br/> # A demo program for PostgreSQL with Perl DBI. <br/> # script for importing formatted text files in a directory to the database <br/> use strict; <br/> Use dBi; <br/> my $ driver = "PG "; <br/> ################ server ################### # <br/> # remote database server parameters <br/> my $ host = "192.168.0.88 "; <br/> my $ database = "s "; <br/> ################# localhost ################ <br /># parameters used for local testing <br/> # my $ host = "localhost "; <br/> # my $ Database = "Postgres "; <br/> #################################### <br/> # You can change the password below to your own password <br/> my $ user = "username "; <br/> my $ passwd = "password"; <br/> my $ Port = 5432; </P> <p> my $ DBH = DBI-> connect ("DBI: $ DRIVER: dbname = $ database; host = $ host; Port = $ port ", $ user, $ passwd, <br/> {raiseerror => 1, autocommit => 0}) or die $ DBI: errstr; <br/> my $ something = $ DBH-> prepare ("/<br/> insert into Journal (title, Etitle, Uthor, eauthor, abstract, eabstract, keyword, ekeyword, volume, year, month) /<br/> values (?,?,?,?,?,?,?,?,?,?,?) /<Br/> ") or die" syntax error: $! /N "; <br/> my ($ title, $ Etitle, $ author, $ eauthor, $ abstract, $ eabstract, $ keyword, $ ekeyword, $ volume, $ year, $ month); <br/> # Open current directory <br/> opendir (Dir ,". ") or die (" cannot open Current Directory: $! /N "); <br/> my @ DOTS = readdir (DIR); <br/> foreach (@ dots) {<br/> chomp ($ _); <br/> If (-F $ _) and (substr ($ _,-4) eq ". TXT ") {<br/> Print" start to Load file $ _ to Database ". "/N"; <br/> my $ Len = length ($ _); <br/> $ volume = substr ($ _, 0, $ len-4 ); # volume <br/> $ year = substr ($ volume, 0,4); # year <br/> $ month = substr ($ volume,-2 ); # month <br/> If (index ($ month, 0, 0) eq "0") {<br/> $ month = substr ($ month,-1 ); <br/>} <Br/> # Print $ volume. "/t ". $ year. "/t ". $ month. "/N"; <br/> open (txtfile, $ _) or die "cannot open file $ _: $! /N "; <br/> my @ file = <txtfile>; <br/> my $ line = @ file; <br/> my $ I; <br/> for ($ I = 0; $ I <$ line; $ I = $ I + 10) <br/>{# whether need to consider the encoding problem? <Br/> $ Title = $ file [$ I]; <br/> $ Etitle = $ file [$ I + 1]; <br/> $ author = $ file [$ I + 2]; <br/> $ eauthor = $ file [$ I + 3]; <br/> # $ depart = $ file [$ I + 4]; # The Department of author <br/> $ keyword = $ file [$ I + 5]; <br/> $ ekeyword = $ file [$ I + 6]; <br/> $ abstract = $ file [$ I + 7]; <br/> $ eabstract = $ file [$ I + 8]; <br/> If ($ title ne "") & ($ author ne "") & (length ($ author) <= 350) {<br/> $ something-> execute ($ title, $ Etitle, $ author, $ eauthor, $ AB Stract, $ eabstract, $ keyword, $ ekeyword, $ volume, $ year, $ month) or die "cannot execute: $! /N "; <br/> $ DBH-> commit; <br/>}< br/>}# end for <br/> Print" #### loaded file: $ _ to database. ###/n "; <br/>}# end if <br/>}< br/> closedir (DIR ); <br/> # Disconnect the database <br/> $ DBH-> disconnect;