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If you're given a raw data table, how would perform etl (extract, transform, load) with sql to obtain the data in a desired format?
963how would you write a sql query to compute a frequency table of a certain attribute involving two joins? What changes would you need to make if you want to order by or group by some attribute? What would you do to account for nulls?
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What are the field and chain statements?
What is hash?
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Is the theorem applicable to ac sources?
In a search for planet x, this celestial body was found after astronomers had searched for an orbital disturbance of the planet uranus?
What is the difference between the expression “++a” and “a++”?
Delete duplicate rows without using rowid.
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Explain the restrictions in siebel that comes while planning the networking topology.
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