Redis tutorial

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https://stackoverflow.com/questions/70020046/quasar-error-cannot-find-module-ajv-dist-compile-codegen 

Redis can be used as a database, cache, streaming engine, message broker, and more. 


refresh while loading a query:---

1 it will be requery

2 respone time will increase

3: waiting time will increase


good for computed data like :unread messages...

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open source in memory data store.


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