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.
正确答案:C
答案解析:有
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