Oracle database 10g:Administration I - 1Z0-042 模擬練習
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?
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?
正解: B
View the Exhibit to see the structure of the EMPLOYEES and DEPARTMENTS tables.
Your organization plans to dissolve the department with department ID 30. You execute the following command to delete rows from the DEPARTMENTS table: SQL>delete from DEPARTMENTS
where DEPT_ID = 30; The command fails and displays the following error: ERROR at line 1:
ORA-02292: integrity constraint (HR.SYS_C005374) violated - child record found Which two actions would you take to overcome this error? (Choose two.)
Your organization plans to dissolve the department with department ID 30. You execute the following command to delete rows from the DEPARTMENTS table: SQL>delete from DEPARTMENTS
where DEPT_ID = 30; The command fails and displays the following error: ERROR at line 1:
ORA-02292: integrity constraint (HR.SYS_C005374) violated - child record found Which two actions would you take to overcome this error? (Choose two.)
正解: B,F
While planning to manage more than one database in your system, you perform the following activities:
1.Organize different categories of files into independent subdirectories.
2.Use consistent naming convention for database files.
3.Separate administrative information pertaining to each database.
Which option corresponds to the type of activities performed by you?
1.Organize different categories of files into independent subdirectories.
2.Use consistent naming convention for database files.
3.Separate administrative information pertaining to each database.
Which option corresponds to the type of activities performed by you?
正解: A
You are using flat files as the data source for one of your data warehousing applications. You plan to move the data from the flat file structures to an Oracle database to optimize the application performance. In your database you have clustered tables. While migrating the data, you want to have minimal impact on the database performance and optimize the data load operation. Which method would you use to load data into Oracle database?
正解: C
Which statement regarding the contents of the V$PARAMETER view is true?
正解: F
The session of user SCOTT receives the following error after executing an UPDATE command on the EMP table:
ERROR at line 1:
ORA-00060: deadlock detected while waiting for resource
On investigation, you find that a session opened by user JIM has a transaction that caused the deadlock.
Which two statements are true regarding the session of SCOTT in this scenario? (Choose two.)
ERROR at line 1:
ORA-00060: deadlock detected while waiting for resource
On investigation, you find that a session opened by user JIM has a transaction that caused the deadlock.
Which two statements are true regarding the session of SCOTT in this scenario? (Choose two.)
正解: B,C
View the Exhibit and analyze the CREATE TABLE statements used to create the ITEMS and ORDERS tables.
The ITEMS table has 50 rows and ORDERS table has 500 rows. Because you decide to not deal with the item code 188 in future, you execute the following command to remove the item:
SQL> DELETE FROM items WHERE item_code=188;
What is the effect of this command?
The ITEMS table has 50 rows and ORDERS table has 500 rows. Because you decide to not deal with the item code 188 in future, you execute the following command to remove the item:
SQL> DELETE FROM items WHERE item_code=188;
What is the effect of this command?
正解: A
You plan to use static database registration for a new listener when you create it. What could be the two reasons for this? (Choose two.)
正解: A,E
In your database, the Log Writer (LGWR) process is unable to write to a member of a current redo log group due to read/write failure. Which two effects would you see in your database? (Choose two.)
正解: A,C