What type of join is needed when you wish to include rows that do not have matching values?
Equi-join
Natural join
Outer join
All of the mentioned
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1
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The above query is equivalent to
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2
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How many tables may be included with a join?
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3
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Which of the join operations do not preserve non-matched tuples?
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4
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The operation which is not considered a basic operation of relational algebra is
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5
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In SQL the statement select * from R, S is equivalent to
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6
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Which are the join types in join condition:
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7
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Which join refers to join records from the right table that have no matching key in the left table are include in the result set:
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8
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How many join types in join condition:
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9
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The____condition allows a general predicate over the relations being joined.
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