sql - What is Impedance Mismatch? -


i want know impedance mismatch is? , how related database?

i couldn't find info tells me , appreciate if explain me.

quoted hacked.com

imagine have low current flashlight uses aaa batteries. don't try @ home, suppose attach car battery flashlight. low current flashlight pitifully output fraction of light energy high current battery capable of producing. likewise, if attached aaa batteries batman's spotlight, you'll low output. however, match aaa batteries flashlight , run maximum efficiency.

so taking discussion software engineering, if imagine flow of data analogous current, impedance of relational data model not matched impedance of object hierarchy. therefore, data not flow maximum efficiency, result of impedance mismatch.


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