由于數(shù)據(jù)量或計(jì)算復(fù)雜度原因,經(jīng)常需要在數(shù)據(jù)庫(kù)中創(chuàng)建中間表,但中間表會(huì)帶來(lái)很多問(wèn)題!若采用專業(yè)的數(shù)據(jù)計(jì)算引擎,又會(huì)帶來(lái)怎樣的好處呢?
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