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?（）ACREATE SYNONYM ord FOR orders; This command is issued by OE BCREATE PUBLIC SYNONYM ord FOR orders; This command is issued by OE CCREATE SYNONYM ord FOR oe.orders; This command is issued by the database administrator DCREATE PUBLIC SYNONYM ord FOR oe.orders; This command is issued by the database administrator
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
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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? （）ASER_NOBORDER_IDCSTATUSDPROD_IDEORD_TOTALFcomposite index on ORDER_ID and ORDER_DATE
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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?（）ACREATE SYNONYM ord FOR orders; This command is issued by OE BCREATE PUBLIC SYNONYM ord FOR orders; This command is issued by OE CCREATE SYNONYM ord FOR oe.orders; This command is issued by the database administrator DCREATE PUBLIC SYNONYM ord FOR oe.orders; This command is issued by the database administrator
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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?（）ACREATE PUBLIC SYNONYM EDL_VU ON emp_dept_loc_vuBCREATE PUBLIC SYNONYM EDL:VU FOR mary (emp_dept_loc_vu);CCREATE PUBLIC SYNONYM EDL_VU FOR emp _dept_loc_vu;DCREATE SYNONYM EDL_VU ON emp_dept_loc_vu FOR EACH USER;ECREATE SYNONYM EDL_VU FOR EACH USER ON emp_dept_loc_vuFCREATE PUBLIC SYNONYM EDL_VU ON emp_dept_loc_vu FOR ALL USERS;
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