1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'AND width_ft > 0 AND length_ft > 0' at line 1

select *,ROUND( length_ft*0.305 ) as length_m, ROUND( width_ft*0.305 ) as width_m from runways WHERE airport_ref= AND width_ft > 0 AND length_ft > 0

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