A. INSERTB. UPDATEC. SELECTD. DESCRIBEE. DELETEF. RENAM……

单项选择题The CUSTOMERS table has these columns: CUSTOMER_ID NUMBER(4) NOT NULL CUSTOMER_NAME VARCHAR2(100) NOT NULL STREET_ADDRESS VARCHAR2(150) CITY_ADDRESS VARCHAR2(50) STATE_ADDRESS VARCHAR2(50) PROVINCE_ADDRESS VARCHAR2(50) COUNTRY_ADDRESS VARCHAR2(50) POSTAL_CODE VARCHAR2(12) CUSTOMER_PHONE VARCHAR2(20) A promotional sale is being advertised to the customers in France. Which WHERE clause identifies customers that are located in France?（）

A. WHERE lower(country_address) = "france"
B. WHERE lower(country_address) = 'france'
C. WHERE lower(country_address) IS 'france'
D. WHERE lower(country_address) = '%france%'
E. WHERE lower(country_address) LIKE %france%

单项选择题What is true about updates through a view? （）

A. You cannot update a view with group functions.
B. When you update a view group functions are automatically computed.
C. When you update a view only the constraints on the underlying table will be in effect.
D. When you update a view the constraints on the views always override the constraints on the underlying tables.

多项选择题What are two reasons to create synonyms? （）

A. You have too many tables.
B. Your tables are too long.
C. Your tables have difficult names.
D. You want to work on your own tables.
E. You want to use another schema's tables.
F. You have too many columns in your tables.

单项选择题Which SQL statement returns a numeric value?（）

A. SELECT ADD_MONTHS(MAX(hire_Date), 6) FROM EMP;
B. SELECT ROUND(hire_date) FROM EMP;
C. SELECT sysdate-hire_date FROM EMP;
D. SELECT TO_NUMBER(hire_date + 7) FROM EMP;

单项选择题Examine this statement: SELECT student_id, gpa FROM student_grades WHERE gpa >&&value; You run the statement once, and when prompted you enter a value of 2.0. A report is produced. What happens when you run the statement a second time?（）

A. An error is returned.
B. You are prompted to enter a new value.
C. A report is produced that matches the first report produced.
D. You are asked whether you want a new value or if you want to run the report based on the previous value.