[rules-users] Advantages and Disadvantages of "from"

[Thalupula Ravi]

Hi,

Can some one describe about advantages and disadvantages of below to
approaches

1. Interacting Database for information in rule ( using "from" or something
else)? 

or

2. Required information supplied to rules in the form facts at one shot by
client instead of again hitting the database.

Thanks for your help:handshake:
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