CREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE = SYSDATE);
CREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE DEFAULT SYSDATE);
CREATE OR REPLACE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE DEFAULT SYSDATE);
CREATE OR REPLACE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status NUMBER (10), date_ordered DATE = SYSDATE);
CREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status NUMBER (10), date_ordered DATE = SYSDATE);
CREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status NUMBER (10), date_ordered DATE DEFAULT SYSDATE);
第1题：
A. income statement
B. statement of owner's equity
C. statement of cash flows
D. balance sheet
第2题：
You are having problems with connections from a specific host (192.168.1.15) not closing down correctly.You want to find the state of the threads from that host check for long-running queries. Which statement will accomplish this?（）
A.A
B.B
C.C
D.D
第3题：
The scope statement provides
A . A basis for future decisions about a project.
B . A baseline to accomplish verification measures.
C . A baseline to evaluate potential scope changes.
D . All of the above
E . B and C only
第4题：
You issue this statement：ALTER DATABASE BACKUP CONTROLFILE TO TRACE； What does the statement generate？（）
第5题：
A.
B.
C.
D.
第6题：
A. Selection, projection, join
B. Difference, projection, join
C. Selection, intersection, join
D. Intersection, projection, join
E. Difference, projection, product
第7题：
The STUDENT_GRADES table has these columns:The registrar has asked for a report on the average grade point average (GPA) for students enrolled during semesters that end in the year 2000. Which statement accomplish this?（）
A.
B.
C.
D.
E.
F.
第8题：
88 The scope statement provides
A. A basis for future decisions about a project.
B. A baseline to accomplish verification measures.
C. A baseline to evaluate potential scope changes.
D. All of the above
E. B and C only
第9题：
A. set term match from policy reject
B. up 1 copy policy-statement my-policy term match to term before-reject
C. activate term match to policy
D. insert term match before term reject
第10题：
Your company has two primary divisions： Products and Services. The Products division is on network 150.10.640/21. The Services division is on network 150.10.72.0/21. You want to summarize both networks into one routing statement. Which IP address and subnet mask combination would most efficiently accomplish this？（）