proximity - SQL - find row with values of two columns closest to X and Y -

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i building website on wich people can infos based on weight , height. how 1 structure query give me row 2 specific values closest ones users enter?

i found this on stackoverflow , helpful. trying accomplish similar 2 values insted of 1.

if weight , height of equal importance, can use (linear)

select top 1 * tbl order abs(weight-@weight) + abs(height-@height)

a better option weigh differences, on scale, such making 0.01m (1cm) of height of equal importance 1kg. square both sides well, deviation of 5cm , 5kg seen "closer" 10cm , 0kg.

(assuming inputs in kg , metres)

select top 1 * tbl order abs(weight-@weight)^2 + (abs(height-@height)*100)^2

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