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EXHIBIT, Emp Table Exhibit A Exhibit B Examine the data from the EMP table. Evaluate this SQL statement: SELECT * FROM emp WHERE emp _ id = 3); WHERE commission = (SELECT commission FROM emp What is the result when the query is executed?（）
A:Exhibit A
B:Exhibit B 
C:The query returns no rows 
D:The query fails because the outer query is retrieving more than one column
E:The query fails because both the inner and outer queries are retrieving data from the same table.

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出自：Oracle认证

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