Multiple choice technology web technology

CODE 1 : proc sql ; title ’Oil Production/Reserves of Countries’; select p.country, barrelsperday ’Production’, barrels ’Reserves’ from sql.oilprod p, sql.oilrsrvs r where p.country = r.country order by barrelsperday desc; CODE 2: proc sql ; select p.country, barrelsperday ’Production’, barrels ’Reserves’ from sql.oilprod p inner join sql.oilrsrvs r on p.country = r.country order by barrelsperday desc; CODE 1 and CODE 2 are equivalent.True or False?

  1. True

  2. False
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A Correct answer
Explanation

Both CODE 1 and CODE 2 perform an inner join between tables sql.oilprod and sql.oilrsrvs on the country column. CODE 1 uses the older comma-separated tables syntax with WHERE clause for joining, while CODE 2 uses the explicit INNER JOIN syntax with ON clause. Both produce identical results - they are equivalent SQL statements.

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