高質量的1z0-071考試證照綜述，最有效的學習資料幫助妳快速通過1z0-071考試

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Oracle 1z1-071，也被稱為Oracle資料庫SQL證書考試，是由Oracle公司提供的專業認證考試。該考試旨在測試考生在SQL編程語言和Oracle資料庫管理系統方面的知識和技能。通過此考試可證明個人擁有與Oracle資料庫和SQL編程相關的必要技能和知識。

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最新的 Oracle PL/SQL Developer Certified Associate 1z0-071 免費考試真題 (Q20-Q25):

問題 #20
Which two statements are true regarding non equijoins?

A. The Oracle join syntax can be used.
B. The USING clause can be used.
C. Table aliases must be used.
D. The SQL:1999 compliant ANSI join syntax must be used.
E. The ON clause can be used.

答案：A,E

問題 #21
Which statements are true? (Choose all that apply.)

A. Views with the same name but different prefixes, such as DBA, ALL and USER, use the same base tables from the data dictionary
B. The USER_CONS_COLUMNS view should be queried to find the names of the columns to which a constraint applies.
C. The data dictionary is created and maintained by the database administrator.
D. The data dictionary views can consist of joins of dictionary base tables and user-defined tables.
E. Both USER_OBJECTS and CAT views provide the same information about all the objects that are owned by the user.
F. The usernames of all the users including the database administrators are stored in the data dictionary.

答案：A,B,F

問題 #22
Which two statements are true about sequences crated in a single instance Oracle database?

A. DELETE <sequencename> would remove a sequence from the database.
B. When the MAXVALUE limit for a sequence is reached, it can be increased by using the ALTER SEQUENCE statement.
C. When the database instance shuts down abnormally, sequence numbers that have been cached but not used are available again when the instance is restarted.
D. CURRVAL is used to refer to the most recent sequence number that has been generated for a particular sequence.
E. The numbers generated by an explicitly defined sequence can only be used to insert data in one table.

答案：B,D

問題 #23
You notice a performance change in your production Oracle 12c database. You want to know which change caused this performance difference.
Which method or feature should you use?

A. Compare Period ADDM report.
B. AWR Compare Period report.
C. Taking a new snapshot and comparing it with a preserved snapshot.
D. Active Session History (ASH) report.

答案：B

問題 #24
Examine the description of the transactions table:

Which two SQL statements execute successfully?

A. SELECT customer_id AS "CUSTOMER-ID", transaction_date AS DATE, amount+100 "DUES" from transactions;
B. SELECT customer_id CUSTID, transaction_date TRANS_DATE,amount+100 DUES FROM transactions;
C. SELECT customer id AS CUSTOMER-ID, transaction_date AS TRANS_DATE, amount+100 "DUES AMOUNT" FROM transactions;
D. SELECT customer_id AS 'CUSTOMER-ID',transaction_date AS DATE, amount+100 'DUES' from transactions;
E. SELECT customer_id AS "CUSTOMER-ID", transaction_date AS "DATE", amount+100 DUES FROM transactions;

答案：B,E

問題 #25
......

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高質量的1z0-071考試證照綜述，最有效的學習資料幫助妳快速通過1z0-071考試

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1z0-071證照考試 - 1z0-071考古題更新

最新的 Oracle PL/SQL Developer Certified Associate 1z0-071 免費考試真題 (Q20-Q25):

1z0-071考試證照綜述和認證考試產品中的領先材料提供者＆1z0-071證照考試

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