[单选]
Examine the structure of the EMPLOYEES table:
EMPLOYEE_ID NUMBER Primary Key
FIRST_NAME VARCHAR2(25)
LAST_NAME VARCHAR2(25)
HIRE_DATE DATE
You issue these statements:
CREATE table new_emp ( employee_id NUMBER, name VARCHAR2(30));
INSERT INTO new_emp SELECT employee_id , last_name from employees;
Savepoint s1;
UPDATE new_emp set name = UPPER(name);
Savepoint s2;
Delete from new_emp;
Rollback to s2;
Delete from new_emp where employee_id =180;
UPDATE new_emp set name = 'James';
Rollback to s2;
UPDATE new_emp set name = 'James' WHERE employee_id =180;
Rollback;
At the end of this transaction, what is true?（）

A . You have no rows in the table.
B . You have an employee with the name of James.
C . You cannot roll back to the same savepoint more than once.
D . Your last update fails to update any rows because employee ID 180 was already deleted.

Refer to the exhibit. Which of the following IOS DHCP configuration statements is required so that a Cisco skinny-based IP phone can connect with CallManager?（） ip dhcp pool Client。 network 10.1.1.0 255.255.255.240。 default-router 10.1.1.1。 dns-server 10.2.2.2。 domain-name cisco.com。 option 150 ip 10.3.3.3。房地产评估应遵循哪些原则？。认知过程包括（）感觉。知觉。记忆。思维。男性，45岁，施工中因房屋倒塌，被埋在泥土中，伤肢严重肿胀，组织广泛缺血与坏死。对患者的急救包括（）尽快使患者脱离危险。首先处理危及生命的损伤。及时处理活动性出血。骨折患者及时复位。休克患者不作处理，立即送医院急救。 Your test database is running in NOARCHIVELOG mode. Which statement is true regarding the type ofbackups that can be performed on the database（） You can perform online whole database backups.。 You can performofflinewhole database backups.。 You cannot perform schema-level export/import operations.。 You can perform the backup of only the SYSTEM tablespace when the database is open.。

Examine the structure of the EMPLOYEES table:
EMPLOYEE_ID NUMBER Primary Key
FIRST_NAME VARCHAR2(25)
LAST_NAME VARCHAR2(25)
HIRE_DATE DATE
You issue these statements:
CREATE table new_emp ( employee_id NUMBER, name VARCHAR2(30));
INSERT INTO new_emp SELECT employee_id , last_name from employees;
Savepoint s1;
UPDATE new_emp set name = UPPER(name);
Savepoint s2;
Delete from new_emp;
Rollback to s2;
Delete from new_emp where employee_id =180;
UPDATE new_emp set name = 'James';
Rollback to s2;
UPDATE new_emp set name = 'James' WHERE employee_id =180;
Rollback;
At the end of this transaction, what is true?（）

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