mysql - Better database design among two -

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i have 2 different following database designs achieves same kind of result i'm expecting:

design 1: http://sqlfiddle.com/#!9/4cbe8/2

design 2: http://sqlfiddle.com/#!9/7e7aa/7

but i'm confused on 1 better design. database design suits perfect when size grows in terms of performance same sample query i've in sqlfiddle?


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