Examine the router output above. Which two items are correct?()
Examine the following RMAN command: RMAN> CONFIGURE ENCRYPTION FOR DATABASE ON; RMAN> BACKUP DATABASE PLUS ARCHIVELOG; Which prerequisite must be met before accomplishing the backup?()
View the Exhibit to examine the replay settings for replay parameters.What is the implication for setting the values for replay parameters?()
Examine the following commands executed in your database: SQL> ALTER SESSION RECYCLEBIN=ON; Session altered SQL> CREATE TABLE emp TABLESPACE tbsfd AS SELECT * FROM hr.employees; Table created. Further, you executed the following command to drop the table: SQL> DROP TABLE emp; Table dropped. What happens in this scenario? ()
Examine the structure of the EMPLOYEES and DEPARTMENTS tables: EMPLOYEESColumn name Data type Remarks EMPLOYEE_ID NUMBER NOT NULL, Primary Key EMP_NAME VARCHAR2 (30) JOB_ID VARCHAR2 (20) SALARY NUMBER MGR_ID NUMBER References EMPLOYEE_ID COLUMN DEPARTMENT ID NUMBER Foreign key to DEPARTMENT ID column of the DEPARTMENTS table DEPARTMENTSColumn name Data type Remarks DEPARTMENT_ID NUMBER NOT NULL, Primary Key DEPARTMENT_NAME VARCHAR2(30) MGR_ID NUMBER References MGR_ID column of the EMPLOYEES table Evaluate this SQL statement: SELECT employee_id, e.department_id, department_name, salary FROM employees e, departments d WHERE e. department_id = d.department_id; Which SQL statement is equivalent to the above SQL statement? ()
Examine the data of the EMPLOYEES table. EMPLOYEES (EMPLOYEE_ID is the primary key. MGR_ID is the ID of managers and refers to the EMPLOYEE_ID) Evaluate this SQL statement: What is its output?()
This book is about the future of technology. In it we will examine some of the many recent developments in a few key fields and try, in a limited way, to predict where they will take us in the next fifteen years or (1)____.
If that sounds like a modest goal, it’s not. Technology is the (2)____(dominate) force of our time and probably of all time to come. It appears in more varieties than we can count. It changes so rapidly (3)____ no scientist or engineer can keep up with his own field, much less with technology in general. It permeates and shapes our lives at every turn. We live in technology (4)____ fish live in the sea, and we have only a little better chance of (5) f____ the details of its future changes.
Yet the task is well worth undertaking. Whatever hints we can glean (一点点搜集) about the future win help us prepare for the changes to come. Modest forecasts, evidence of trends, a few concrete developments to be expected all are better than no warning at all. And (6) th____ technology has made the present much less stable than the past, and surely will make the future more disturbed still, there is good reason to hope that our lives, in sum and on average, will be better as a result. In an age of uncomfortable (7) ch____, this is reassurance(保证) we all can use.
For an idea of what is to come—in magnitude if not in (8) sp____—look to the past. In the last ninety years, the world has shrunk, while human experience has advanced almost beyond the recognition of these who grew up in our grandparent’s generation.
A century after America’s (9)____(found) conceived their agrarian (耕地的) democracy, nearly all their descendents still lived on fanning. Since World War I, technology has extracted us from behind horse-drawn plows and plugged us into (10) as____ lines and offices. Today it is removing many of us from offices and letting us work at home or forcing us to work on the road.
Click the Exhibit button and examine the data in the EMPLOYEES and DEPARTMENTS tables. You want to retrieve all employees' last names, along with their managers' last names and their department names. Which query would you use?()
Examine these statements: CREATE ROLE registrar GRANT UPDATE ON dtudent_grades TO registrar; GRANT registrar to user1, user2, user3; What does this set of SQL statements do?()
The()may examine or re-examine the goods or take samples from them straightaway in the absence of the consignee or the consignor whenever it considers this necessary.