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【071题库】最新OCP-071考试题库解析-第9题

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071题库-第9题、choose two

The SQL statements executed in a user session are as follows:

SQL> CREATE TABLE product

(pcode NUMBER(2),

pname VARCHAR2(10));

SQL> INSERT INTO product VALUES (1, 'pen');

SQL> INSERT INTO product VALUES (2,'pencil');

SQL> SAVEPOINT a;

SQL> UPDATE product SET pcode = 10 WHERE pcode = 1;

SQL> SAVEPOINT b;

SQL> DELETE FROM product WHERE pcode = 2;

SQL> COMMIT;

SQL> DELETE FROM product WHERE pcode=10;

SQL> ROLLBACK TO SAVEPOINT a;

Which two statements describe the consequences of issuing the ROLLBACK TO SAVE POINT a command in the session?

A) Only the second DELETE statement is rolled back.

B) No SQL statements are rolled back.

C) Both the DELETE statements and the UPDATE statement are rolled back.

D) The rollback generates an error.

E) Only the DELETE statements are rolled back.

Answer：BD

(因为 commit 操作，前面所有的保存点都结束)

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