单选题The ORDERS table belongs to the user OE. OE has granted the SELECT privilege on the ORDERS table to the user HR.Which statement would create a synonym ORD so that HR can execute the following query successfully?（）A CREATE SYNONYM ord FOR orders; This c

题目
单选题
The ORDERS table belongs to the user OE. OE has granted the SELECT privilege on the ORDERS table to the user HR.Which statement would create a synonym ORD so that HR can execute the following query successfully?（）
A

CREATE SYNONYM ord FOR orders; This command is issued by OE 

B

CREATE PUBLIC SYNONYM ord FOR orders; This command is issued by OE 

C

CREATE SYNONYM ord FOR oe.orders; This command is issued by the database administrator 

D

CREATE PUBLIC SYNONYM ord FOR oe.orders; This command is issued by the database administrator 

相似考题

1. Examine the SQL statement that creates ORDERS table: CREATE TABLE orders (SER_NO NUMBER UNIQUE, ORDER_ID NUMBER, ORDER_DATE DATE NOT NULL, STATUS VARCHAR2(10) CHECK (status IN ('CREDIT', 'CASH')), PROD_ID NUMBER REFERENCES PRODUCTS(PRODUCT_ID), ORD_TOTAL NUMBER, PRIMARY KEY (order_id, order_date)); For which columns would an index be automatically created when you execute the above SQL statement? （）A、SER_NOB、ORDER_IDC、STATUSD、PROD_IDE、ORD_TOTALF、composite index on ORDER_ID and ORDER_DATE

2. Examine the following steps performed on a database instance： 1. The DBA grants the CREATE TABLE system privilege to the SKD user with ADMIN OPTION. 2. The SKD user creates a table. 3. The SKD user grants the CREATE TABLE system privilege to the HR user. 4. The HR user creates a table. 5. The DBA revokes the CREATE TABLE system privilege from SKD.  Which statement is true after step 5 isperformed（）A、The table created by SKD is not accessible and SKD cannot create new tables.B、The tables created by SKD and HR remain， but both cannot create new tables.C、The table created by HR remains and HR still has the CREATE TABLE system privilege.D、The table created by HR remains and HR can grant the CREATE TABLE system privilege to other users.

3. Examine the SQL statements that creates ORDERS table: CREATE TABLE orders (SER_NO NUMBER UNIQUE, ORDER_ID NUMBER, ORDER_DATE DATE NOT NULL STATUS VARCHARD2(10) CHECK (status IN ('CREDIT','CASH')), PROD_ID_NUMBER REFERENCES PRODUCTS(PRODUCT_ID), ORD_TOTAL NUMBER, PRIMARY KEY (order id, order date)); For which columns would an index be automatically created when you execute the aboveSQL statement? （）A、SER_NOB、ORDER_IDC、STATUSD、PROD_IDE、ORD_TOTALF、Composite index on ORDER_ID and ORDER_DATE

4. The HR user creates a view with this command：  SQL> CREATE VIEW emp_v AS SELECT * FROM scott.emp；  Now HR wants to grant the SELECT privilege on the EMP_V view to the JIM user.  Which statement is true in this scenario？（）A、HR can grant the privilege to JIM but without GRANT OPTION.B、HR can grant the privilege to JIM because HR is the owner of the view.C、SCOTT has to grant the SELECT privilege on the EMP table to JIM before this operation.D、HR needs the SELECT privilege on the EMP table with GRANT OPTION from SCOTT for this operation.

更多“单选题The ORDERS table belongs to the user OE. OE has granted the SELECT privilege on the ORDERS table to the user HR.Which statement would create a synonym ORD so that HR can execute the following query successfully?（）A CREATE SYNONYM ord FOR orders; This c”相关问题

  • 第1题：

    The database administrator of your company created a public synonym called HR for the HUMAN_RESOURCES table of the GENERAL schema, because many users frequently use this table. As a user of the database, you created a table called HR in your schema. What happens when you execute this query? SELECT * FROM HR;（）

    • A、You obtain the results retrieved from the public synonym HR created by the database administrator.
    • B、You obtain the results retrieved from the HR table that belongs to your schema.
    • C、You get an error message because you cannot retrieve from a table that has the same name as a public synonym.
    • D、You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a Cartesian product.
    • E、You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a FULL JOIN.

    正确答案:B

  • 第2题：

    Examine the following steps performed on a database instance：  1：The DBA grants the CREATE TABLE system privilege to the SKD user with ADMIN OPTION.  2：The SKD usercreates a table.  3：The SKD user grants theCREATETABLE system privilege to the HR user.  4：The HR user creates a table.  5：The DBA revokes the CREATE TABLE system privilege from SKD.  Which statement is true after step 5 is performed（）

    • A、The table created by SKD isnot accessibleand SKD cannot create new tables.
    • B、The tables created by SKD and HR remain， but both cannot create new tables.
    • C、The table created by HR remains and HR still has the CREATE TABLE system privilege.
    • D、The table created by HR remains and HR can grant the CREATE TABLE system privilege to other users.

    正确答案:C

  • 第3题：

    You created the ORDERS table in your database by using the following code：   SQL> CREATE TABLE ORDERS （ORDER_DATE TIMESTAMP（0） WITH TIME ZONE）；   Then， you inserted data in the ORDERS table and saved it by issuing the following statements：SQL> INSERT INTO ORDERS VALUES（’18-AUG-00 10：26：44 PM America/New_York’）；   SQL> INSERT INTO ORDERS VALUES（’23-AUG-02 12：46：34 PM America/New_York’）；   SQL> COMMIT；   Next， you issued the following statement to change the time zone for the database：   SQL> ALTER DATABASE SET TIME_ZONE=’Europe/London’；   What will be the result of executing the above statement？（）  

    • A、 The statement will fail.
    • B、 The statement will be executed successfully， and the new time zone will be set for the database.
    • C、 The statement will be executed successfully， but the new time zone will be set for the current session.
    • D、The statement will be executed successfully， but the new time zone will neither be set for the database nor for a specific session.

    正确答案:A

  • 第4题：

    On your Oracle 12c database, you Issue the following commands to create indexes SQL > CREATE INDEX oe.ord_customer_ix1 ON oe.orders (customers_id, sales_rep_id) INVISIBLE; SQL> CREATE BITMAP INDEX oe.ord_customer_ix2 ON oe.orders (customers_id, sales_rep_id); Which two statement are correct?（）

    • A、Both the indexes are created; however, only the ORD_COSTOMER index is visible.
    • B、The optimizer evaluates index access from both the Indexes before deciding on which index to use for query execution plan.
    • C、Only the ORD_CUSTOMER_IX1 index is created.
    • D、Only the ORD_CUSTOMER_IX2 index is created.
    • E、Both the indexes are updated when a new row is inserted, updated, or deleted In the orders table.

    正确答案:A,E

  • 第5题：

    单选题
    Examine the following steps performed on a database instance：  1：The DBA grants the CREATE TABLE system privilege to the SKD user with ADMIN OPTION.  2：The SKD usercreates a table.  3：The SKD user grants theCREATETABLE system privilege to the HR user.  4：The HR user creates a table.  5：The DBA revokes the CREATE TABLE system privilege from SKD.  Which statement is true after step 5 is performed（）
    A

    The table created by SKD isnot accessibleand SKD cannot create new tables.

    B

    The tables created by SKD and HR remain， but both cannot create new tables.

    C

    The table created by HR remains and HR still has the CREATE TABLE system privilege.

    D

    The table created by HR remains and HR can grant the CREATE TABLE system privilege to other users.


    正确答案： C
    解析： 暂无解析

  • 第6题：

    单选题
    View the Exhibit and examine the structure of the ORDERS and ORDERJTEMS tables.  Evaluate the following SQL statement：   SELECT oi.order_id， product_jd， order_date   FROM order_items oi JOIN orders o   USING （order_id）；   Which statement is true regarding the execution of this SQL statement？（）
    A

     The statement would not execute because table aliases are not allowed in the JOIN clause.

    B

     The statement would not execute because the table alias prefix is not used in the USING clause.

    C

     The statement would not execute because all the columns in the SELECT clause are not prefixed with table aliases.

    D

     The statement would not execute because the column part of the USING clause cannot have a qualifier in the SELECT list.


    正确答案： A
    解析： 暂无解析

  • 第7题：

    多选题
    On your Oracle Database, you issue the following commands to create indexes: SQL > CREATE INDEX oe.ord_customer_ix1 ON oe.orders (customer_id, sales_rep_id) INVISIBLE; SQL> CREATE BITMAP INDEX oe.ord_customer_ix2 ON oe.orders (customer_id, sales_rep_id); Which two statements are true?（）
    A

    Only the ORD_CUSTOMER_IX1 index created.

    B

    Both the indexes are updated when a row is inserted, updated, or deleted in the ORDERS table.

    C

    Both the indexes are created: however, only ORD_CUSTOMERS_IX1 is used by the optimizer for queries on the ORDERS table.

    D

    The ORD_CUSTOMER_IX1 index is not used by the optimizer even when the OPTIMIZER_USE_INVISIBLE_INDEXES parameters is set to true.

    E

    Both the indexes are created and used by the optimizer for queries on the ORDERS table.

    F

    Both the indexes are created: however, only ORD_CUSTOMERS_IX2 is used by the optimizer for queries on the ORDERS table.


    正确答案： D,E
    解析： 暂无解析

  • 第8题：

    单选题
    The HR user creates a view with this command：  SQL> CREATE VIEW emp_v AS SELECT * FROM scott.emp；  Now HR wants to grant the SELECT privilege on the EMP_V view to the JIM user.  Which statement is true in this scenario？（）
    A

    HR can grant the privilege to JIM but without GRANT OPTION.

    B

    HR can grant the privilege to JIM because HR is the owner of the view.

    C

    SCOTT has to grant the SELECT privilege on the EMP table to JIM before this operation.

    D

    HR needs the SELECT privilege on the EMP table with GRANT OPTION from SCOTT for this operation.


    正确答案： D
    解析： 暂无解析

  • 第9题：

    单选题
    You created the ORDERS table in your database by using the following code：   SQL> CREATE TABLE ORDERS （ORDER_DATE TIMESTAMP（0） WITH TIME ZONE）；   Then， you inserted data in the ORDERS table and saved it by issuing the following statements：SQL> INSERT INTO ORDERS VALUES（’18-AUG-00 10：26：44 PM America/New_York’）；   SQL> INSERT INTO ORDERS VALUES（’23-AUG-02 12：46：34 PM America/New_York’）；   SQL> COMMIT；   Next， you issued the following statement to change the time zone for the database：   SQL> ALTER DATABASE SET TIME_ZONE=’Europe/London’；   What will be the result of executing the above statement？（）
    A

     The statement will fail.

    B

     The statement will be executed successfully， and the new time zone will be set for the database.

    C

     The statement will be executed successfully， but the new time zone will be set for the current session.

    D

    The statement will be executed successfully， but the new time zone will neither be set for the database nor for a specific session.


    正确答案： D
    解析： 暂无解析

  • 第10题：

    单选题
    Which statement is true regarding synonyms?（）
    A

    Synonyms can be created only for a table 

    B

    Synonyms are used to reference only those tables that are owned by another user 

    C

    A public synonym and a private synonym can exist with the same name for the same table 

    D

    The DROP SYNONYM statement removes the synonym, and the table on which the synonym has been created becomes invalid


    正确答案： B
    解析： 暂无解析

  • 第11题：

    单选题
    User Mary has a view called EMP_DEPT_LOC_VU that was created based on the EMPLOYEES, DEPARTMENTS, and LOCATIONS tables. She has the privilege to create a public synonym, and would like to create a synonym for this view that can be used by all users of the database. Which SQL statement can Mary use to accomplish that task?（）
    A

    CREATE PUBLIC SYNONYM EDL_VU ON emp_dept_loc_vu

    B

    CREATE PUBLIC SYNONYM EDL:VU FOR mary (emp_dept_loc_vu);

    C

    CREATE PUBLIC SYNONYM EDL_VU FOR emp _dept_loc_vu;

    D

    CREATE SYNONYM EDL_VU ON emp_dept_loc_vu FOR EACH USER;

    E

    CREATE SYNONYM EDL_VU FOR EACH USER ON emp_dept_loc_vu

    F

    CREATE PUBLIC SYNONYM EDL_VU ON emp_dept_loc_vu FOR ALL USERS;


    正确答案： A
    解析： 暂无解析

  • 第12题：

    多选题
    Examine the SQL statement that creates ORDERS table: CREATE TABLE orders (SER_NO NUMBER UNIQUE, ORDER_ID NUMBER, ORDER_DATE DATE NOT NULL, STATUS VARCHAR2(10) CHECK (status IN ('CREDIT', 'CASH')), PROD_ID NUMBER REFERENCES PRODUCTS(PRODUCT_ID), ORD_TOTAL NUMBER, PRIMARY KEY (order_id, order_date)); For which columns would an index be automatically created when you execute the above SQL statement? （）
    A

    SER_NO

    B

    ORDER_ID

    C

    STATUS

    D

    PROD_ID

    E

    ORD_TOTAL

    F

    composite index on ORDER_ID and ORDER_DATE


    正确答案： F,C
    解析： 暂无解析

  • 第13题：

    User Mary has a view called EMP_DEPT_LOC_VU that was created based on the EMPLOYEES, DEPARTMENTS, and LOCATIONS tables. She has the privilege to create a public synonym, and would like to create a synonym for this view that can be used by all users of the database.Which SQL statement can Mary use to accomplish that task?（）

    • A、CREATE PUBLIC SYNONYM EDL_VU ON emp_dept_loc_vu
    • B、CREATE PUBLIC SYNONYM EDL:VU FOR mary (emp_dept_loc_vu);
    • C、CREATE PUBLIC SYNONYM EDL_VU FOR emp _dept_loc_vu;
    • D、CREATE SYNONYM EDL_VU ON emp_dept_loc_vu FOR EACH USER;
    • E、CREATE SYNONYM EDL_VU FOR EACH USER ON emp_dept_loc_vu
    • F、CREATE PUBLIC SYNONYM EDL_VU ON emp_dept_loc_vu FOR ALL USERS;

    正确答案:C

  • 第14题：

    Examine the commands executed in the following sequence：  1：SQL> CREATE ROLE mgrrole；  2：SQL> GRANT create user，select any table，connect，resource TO mgrrole；  3：SQL> GRANT select，update ON sh.sales TO mgrrole；  4：SQL> CREATE ROLE ceo IDENTIFIED BY boss；  5：SQL> GRANT mgrrole，drop any table，create any directory TO ceo；  6：SQL> GRANT ceo TO mgrrole；  Which statement is true about the above commands（）

    • A、The commands execute successfully.
    • B、Command 6 produces an error because of circular role grant.
    • C、Command 5 produces an error because a role cannot be granted to another role.
    • D、Command 3 produces an error because the MGRROLE role already contains system privileges.
    • E、The table created by HR remains and HR still has the CREATE TABLE system privilege.
    • F、The table created by HR remains and HR can grant the CREATE TABLE system privilege to other users.

    正确答案:B

  • 第15题：

    On your Oracle Database, you issue the following commands to create indexes: SQL > CREATE INDEX oe.ord_customer_ix1 ON oe.orders (customer_id, sales_rep_id) INVISIBLE; SQL> CREATE BITMAP INDEX oe.ord_customer_ix2 ON oe.orders (customer_id, sales_rep_id); Which two statements are true?（）

    • A、Only the ORD_CUSTOMER_IX1 index created.
    • B、Both the indexes are updated when a row is inserted, updated, or deleted in the ORDERS table.
    • C、Both the indexes are created: however, only ORD_CUSTOMERS_IX1 is used by the optimizer for queries on the ORDERS table.
    • D、The ORD_CUSTOMER_IX1 index is not used by the optimizer even when the OPTIMIZER_USE_INVISIBLE_INDEXES parameters is set to true.
    • E、Both the indexes are created and used by the optimizer for queries on the ORDERS table.
    • F、Both the indexes are created: however, only ORD_CUSTOMERS_IX2 is used by the optimizer for queries on the ORDERS table.

    正确答案:B,F

  • 第16题：

    单选题
    Click the Exhibit button and examine the data from the ORDERS and CUSTOMERS tables. Which SQL statement retrieves the order ID, customer ID, and order total for the orders that are placed on the same day that Martin placed his orders?（）
    A

    SELECT ord_id, cust_id, ord_total FROM orders, customers WHERE cust_name='Martin' AND ord_date IN ('18-JUL-2000','21-JUL-2000');

    B

    SELECT ord_id, cust_id, ord_total FROM orders WHERE ord_date IN (SELECT ord_date FROM orders WHERE cust_id = (SELECT cust_id FROM customers WHERE cust_name = 'Martin'));

    C

    SELECT ord_id, cust_id, ord_total FROM orders WHERE ord_date IN (SELECT ord_date FROM orders, customers WHERE cust_name = 'Martin');

    D

    SELECT ord_id, cust_id, ord_total FROM orders WHERE cust_id IN (SELECT cust_id FROM customers WHERE cust_name = 'Martin');


    正确答案： D
    解析： 暂无解析

  • 第17题：

    单选题
    The database administrator of your company created a public synonym called HR for the HUMAN_RESOURCES table of the GENERAL schema, because many users frequently use this table. As a user of the database, you created a table called HR in your schema. What happens when you execute this query? SELECT * FROM HR;（）
    A

    You obtain the results retrieved from the public synonym HR created by the database administrator.

    B

    You obtain the results retrieved from the HR table that belongs to your schema.

    C

    You get an error message because you cannot retrieve from a table that has the same name as a public synonym.

    D

    You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a Cartesian product.

    E

    You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a FULL JOIN.


    正确答案： C
    解析： 暂无解析

  • 第18题：

    单选题
    Examine the commands executed in the following sequence：  1：SQL> CREATE ROLE mgrrole；  2：SQL> GRANT create user，select any table，connect，resource TO mgrrole；  3：SQL> GRANT select，update ON sh.sales TO mgrrole；  4：SQL> CREATE ROLE ceo IDENTIFIED BY boss；  5：SQL> GRANT mgrrole，drop any table，create any directory TO ceo；  6：SQL> GRANT ceo TO mgrrole；  Which statement is true about the above commands（）
    A

    The commands execute successfully.

    B

    Command 6 produces an error because of circular role grant.

    C

    Command 5 produces an error because a role cannot be granted to another role.

    D

    Command 3 produces an error because the MGRROLE role already contains system privileges.

    E

    The table created by HR remains and HR still has the CREATE TABLE system privilege.

    F

    The table created by HR remains and HR can grant the CREATE TABLE system privilege to other users.


    正确答案： F
    解析： 暂无解析

  • 第19题：

    单选题
    Examine the following steps performed on a database instance： 1. The DBA grants the CREATE TABLE system privilege to the SKD user with ADMIN OPTION. 2. The SKD user creates a table. 3. The SKD user grants the CREATE TABLE system privilege to the HR user. 4. The HR user creates a table. 5. The DBA revokes the CREATE TABLE system privilege from SKD.  Which statement is true after step 5 isperformed（）
    A

    The table created by SKD is not accessible and SKD cannot create new tables.

    B

    The tables created by SKD and HR remain， but both cannot create new tables.

    C

    The table created by HR remains and HR still has the CREATE TABLE system privilege.

    D

    The table created by HR remains and HR can grant the CREATE TABLE system privilege to other users.


    正确答案： C
    解析： 暂无解析

  • 第20题：

    多选题
    Examine the SQL statement that creates ORDERS table: CREATE TABLE orders (SER_NO NUMBER UNIQUE, ORDER_ID NUMBER, ORDER_DATE DATE NOT NULL, STATUS VARCHAR2(10) CHECK (status IN ('CREDIT', 'CASH')), PROD_ID NUMBER REFERENCES PRODUCTS(PRODUCT_ID), ORD_TOTAL NUMBER, PRIMARY KEY (order_id, order_date)); For which columns would an index be automatically created when you execute the above SQL statement? （）
    A

    SER_NO

    B

    ORDER_ID

    C

    STATUS

    D

    PROD_ID

    E

    ORD_TOTAL

    F

    composite index on ORDER_ID and ORDER_DATE


    正确答案： A,F
    解析： 暂无解析

  • 第21题：

    单选题
    An index called ORD_CUSTNAME_IX has been created on the CUSTNAME column in the ORDERS table using the following command: SQL>CREATE INDEX ord_custname_ix ON orders(custname); The ORDERS table is frequently queried using the CUSTNAME column in the WHERE clause. You want to check the impact on the performance of the queries if the index is not available. You do not want the index to be dropped or rebuilt to perform this test.Which is the most efficient method of performing this task?（）
    A

    disabling the index

    B

    making the index invisible

    C

    making the index unusable

    D

    using the MONITORING USAGE clause for the index


    正确答案： D
    解析： 暂无解析

  • 第22题：

    多选题
    On your Oracle 12c database, you Issue the following commands to create indexes SQL > CREATE INDEX oe.ord_customer_ix1 ON oe.orders (customers_id, sales_rep_id) INVISIBLE; SQL> CREATE BITMAP INDEX oe.ord_customer_ix2 ON oe.orders (customers_id, sales_rep_id); Which two statement are correct?（）
    A

    Both the indexes are created; however, only the ORD_COSTOMER index is visible.

    B

    The optimizer evaluates index access from both the Indexes before deciding on which index to use for query execution plan.

    C

    Only the ORD_CUSTOMER_IX1 index is created.

    D

    Only the ORD_CUSTOMER_IX2 index is created.

    E

    Both the indexes are updated when a new row is inserted, updated, or deleted In the orders table.


    正确答案： A,E
    解析： 暂无解析

  • 第23题：

    多选题
    Examine the SQL statements that creates ORDERS table: CREATE TABLE orders (SER_NO NUMBER UNIQUE, ORDER_ID NUMBER, ORDER_DATE DATE NOT NULL STATUS VARCHARD2(10) CHECK (status IN ('CREDIT','CASH')), PROD_ID_NUMBER REFERENCES PRODUCTS(PRODUCT_ID), ORD_TOTAL NUMBER, PRIMARY KEY (order id, order date)); For which columns would an index be automatically created when you execute the aboveSQL statement? （）
    A

    SER_NO

    B

    ORDER_ID

    C

    STATUS

    D

    PROD_ID

    E

    ORD_TOTAL

    F

    Composite index on ORDER_ID and ORDER_DATE


    正确答案： C,F
    解析： 暂无解析

相关内容