使用ruby快速比较xml文件并将其保存到数据库

Question

I'm looking for method for fast comparison xml files with ruby. I have 2 files (40MB), each about 100,000 rows. Each element consists of 20 attributes. Files obtained from different databases. I would like to compare them and find out what data has changed, to update them in the database.Tell me, what's going to help me?

With xml I've never worked, so in my head is an idea for comparison of each line (after the parsing and checking with the database). But I think it is very slow.

Answer 1

如果文件格式合理（每行等着装，请换行），则可以使用diff命令并解析输出。