Given the relation X below what value will be retrieved by the following query?
A) 2
B) 3
C) 4
D) 5

Question

Given the relation X below  what value will be retrieved by the following query? 
A) 2 
B) 3 
C) 4 
D) 5

Quizplus · Accepted Answer

The only difference between the two relations is the third group of characters, which is d3db_97a5_8021_2fe00f8fa3b6 and beb6_8021_ad5fa65cb4c3. The third group of characters represents a unique identifier for each record, so the query will only retrieve the record that matches the exact identifier in the query. In this case, the query has a different third group of characters, so it will not match the record in the relation. Therefore, no value will be retrieved by the query.

Given the Relation X Below What Value Will Be