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单选题
指出下面sql语句错误之处（） select id_number “Part Number”， sum（price） “price” from inventory where price >50 group by “Part Number” order by 2；
A
order by 2
B
from inventory
C
where price＞50
D
group by “Part Number”
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指出下面sql语句错误之处（） select id_number “Part Number”， sum（price） “price” from inventory where price 50 group by “Part Number” order by 2；A、order by 2B、from inventoryC、where price＞50D、group by “Part Number”
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