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考虑发票收集与下列文件:MongoDB中的文档的2场之间的比较
{ "invoice_no" : "1001", "payable_amount" : 100, "paid_amount" : 50 }
{ "invoice_no" : "1002", "payable_amount" : 200, "paid_amount" : 200 }
{ "invoice_no" : "1003", "payable_amount" : 300, "paid_amount" : 150 }
{ "invoice_no" : "1004", "payable_amount" : 400, "paid_amount" : 400 }
需要这些文件,其中payable_amount> paid_amount
预期结果:
{ "invoice_no" : "1001", "payable_amount" : 100, "paid_amount" : 50 }
{ "invoice_no" : "1003", "payable_amount" : 300, "paid_amount" : 150 }
可以请你看看这个,https://stackoverflow.com/questions/8433046/mongodb-query -with-the-the-the-documents –