Oracle
1Z0-071 · Question #273
1Z0-071 Question #273: Real Exam Question with Answer & Explanation
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Question
Examine the description of the CUSTOMERS table: CUSTNO is the PRIMARY KEY. You must determine if any customers' details have been entered more than once using a different CUSTNO, by listing all duplicate names. Which two methods can you use to get the required result? (Choose two.)
Exhibit
Options
- ALEFT OUTER JOIN with self join
- Bself join
- CRIGHT OUTER JOIN with self join
- DFULL OUTER JOIN with self join
- Esubquery
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