relating data stored in NoSQL DB to data stored in SQL DB

Posted by seanbrant on Stack Overflow See other posts from Stack Overflow or by seanbrant
Published on 2010-06-02T17:05:39Z Indexed on 2010/06/02 18:44 UTC
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Filed under:

sql

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postgresql

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nosql

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redis

Whats the best way to use a SQL DB along side a NoSQL DB? I want to keep my users and other data in postgres but have some data that would be better suited for a NoSQL DB like redis.

I see a lot of talk about switching to NoSQL but little talk on integrating it with existing systems. I think it would be foolish to throw the baby out with the bath water and ditch SQL all together, unless it makes things easier to maintain and develop.

I'm wondering what the best approach is for relating data stored in SQL to my data in redis. I was thinking of something along the line of this.

User object stored in SQL
Book object in redis, key sh1 hash of value, value is a JSON string
Relations stored in redis, key User.pk:books, value redis set of sha1's

Anyone have experience, tips, better ways?

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