Perl：接收select count(*) from tables;返回值

數據庫中內容以下圖：mysql 要查詢 host = 'HOST:10.1.1.5'的記錄數：sql #!/usr/bin/perl use DBI; my $host = "localhost"; my $driver ="mysql"; my $database = "catchdata"; my $dsn = "DBI:$driver:database=$database:$host"; m

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