SQL실행 순서, select 컬럼명, where 절 조건

select 5

from 1

where 2

groupby 3

having 4

order by 6

limit

​

from->where->groupby->having->select->order by

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as cate gory, as 2021_gmv, as #mm

띄어쓰기, 숫자시작, 특수문자는 명명 X

단

as "cate gory", as "2021_gmv", as "#mm"

가능

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