名稱鍵值 。 。 。 。 。 。 用戶名進行更新Perl DBI mysql更新
#!/usr/bin/perl -w
# Use the DBI module
use strict;
use warnings;
use DBI;
# CONFIG VARIABLES
my $platform = "mysql";
my $database = "prod";
my $host = "localhost";
my $username = "root";
my $password = "admin";
# DATA SOURCE NAME
my $dsn = "dbi:$platform:$database:$host";
# PERL DBI CONNECT
my $connect = DBI->connect($dsn, $username, $password);
# VARS for Examples
my $query;
my $query_handle;
my $id;
my $demo;
# Example 2 using do() UPDATE
# SAMPLE VARIABLE AND VALUES TO PASS INTO SQL STATEMENT
$id = "username";
$name = "Arty";
# do() THE UPDATE
$query = "UPDATE jos_config SET values = '$name' WHERE namekey = $id;";
$query_handle = $connect->prepare($query);
# EXECUTE THE UPDATE
$query_handle = $connect->do($query);
print STDERR "ERROR: $DBI::errstr";
print STDERR "INFO: $query_handle rows updated";
undef $query;
錯誤消息:
DBD::mysql::db do failed: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'values = 'Arty' WHERE namekey = smtp_username' at line 1 at /home/arty/Documents/SmtpDbchange2.pl line 40.
ERROR: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'values = 'Arty' WHERE namekey = smtp_username' at line 1Use of uninitialized value $query_handle in concatenation (.) or string at /home/arty/Documents/SmtpDbchange2.pl line 43.
請協助
如果你調用'做($查詢)'那麼你並不需要調用'準備($查詢)','做( )'在語句執行之前就準備好了。 –
推薦'DBI-> connect($ dsn,$ u,$ p,{RaiseError => 1})' - 這會爲你帶來錯誤。例如,它會在你的(多餘的)'prepare()'中出現語法錯誤。 – pilcrow