"Firestore - 如何以最有效的方式构建数据？"

Question

I am a self-taught developer and currently I am working on a finance app and would like to ask you which way is more efficient to store my data in Firestore.

Answer 1

因为您正在使用 Firestore，所以我认为您想要优化读取\/写入，所以我更喜欢第一个，因为您将拥有用户自己的事务，但另一个您将为用户读取，另一个为其读取自己的交易，但您可以通过两者来做得更好，因为您可能只需要获取交易，这样您就可以从交易集合中获取它，避免额外的查询从用户集合中获取每笔交易

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Answer 2

for simplicity, and what i usually do is the "STRUCTURE 2". the structure 2 is what i usually use

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