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Difference between LEFT OUTER JOIN and RIGHT OUTER JOIN
In left outer join tuples from the left-hand-side relation which do not match any tuple in the right-hand-side relation are padded along with nulls and are added to the result of the left outer join. Likewise, in right outer join tuples from the right-hand-side relation which do not match any tuple in the left-hand-side relation are padded along with nulls and are added to the result of the left outer join.
It defines that no primary key value can be null. This is as the primary key is used to recognize individual tuple in the relation. So we will not be able to recognize the records
List some instances of collection types? a) sets b) arrays c) multisets
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Determine the Derived attribute to avoid re-computation Each class box consists of an ordered list of attributes and operations, each represented as a next string. We can find
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