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What the does phrase full table scan mean? 1 . hashing the table on the value of an attribute 2 . scanning the entire database,

What the does phrase full table scan mean?

1 .

hashing the table on the value of an attribute

2 .

scanning the entire database, including all tables

3 .

reading every tuple that has a particular value for an attribute

4 .

examining every tuple in the table

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