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Results tagged with exists
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user 73183
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Select all from A where attribute exists in B [closed]
Using relational algebra, how do I select all tuples from A where variable X exists in B? … Example:
Relation 1
Cars(car_id,model)
Relation 2
Ford(car_id,year)
How do I select from Cars, all the tuples where id exists in Ford? …
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