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The DBA issues this SQL command

题目

The DBA issues this SQL command: CREATE USER scott IDENTIFIES by tiger; What privileges does the user Scott have at this point? （）

  • A、No privileges.
  • B、Only the SELECT privilege.
  • C、Only the CONNECT privilege.
  • D、All the privileges of a default user.
参考答案和解析
正确答案:A
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相似问题和答案

第1题：

View the Exhibit for some of the current parameter settings. A user logs in to the HR schema and issues the following commands:SQL> CREATE TABLE emp(empno NUMBER(3),ename VARCHAR2(20),sal NUMBER(8,2));SQL> INSERT INTO emp(empno,ename) VALUES(1,‘JAMES‘);At this moment, a second user also logs in to the HR schema and issues the following command:SQL> ALTER TABLE emp MODIFY sal NUMBER(10,2);What happens in the above scenario?（）

A. The second user‘s session immediately produces the resource busy error.

B. The second user‘s command executes successfully.

C. The second user‘s session waits for a time period before producing the resource busy error.

D. A deadlock is created.


参考答案：C

第2题：

Command对象可以执行SQL语句。


正确答案:正确

第3题：

The DBA issues this SQL command: CREATE USER scott IDENTIFIED by tiger; What privileges does the user Scott have at this point?()

A. no privileges

B. only the SELECT privilege

C. only the CONNECT privilege

D. all the privileges of a default user


参考答案：A

第4题：

View the Exhibit to examine the output of the DBA_OUTSTANDING_ALERTS view. After 30 minutes， you executed the following command：  SQL> SELECT reason，metric_value FROM dba_outstanding_alerts； REASON         METRIC_VALUE  ------------------------------------------------------------  ------------  Tablespace [TEST] is [28 percent]full  28.125  What could be the reason for the elimination of the other rows in the output（）

  • A、An Automatic Workload Repository snapshot has been taken recently.
  • B、The non-threshold-based alerts are transferred to DBA_ALERT_HISTORY.
  • C、The threshold alerts conditions are cleared and the alerts are transferred to DBA_ALERT_HISTORY.
  • D、The threshold alerts related to database metrics are permanently stored in DBA_ALERT_HISTORY but not the threshold alerts related to instance metrics.

正确答案:C

第5题：

In a TCP/IP network， which of the following protocols is involved when a user issues a ping command？（）

  • A、TCP
  • B、UDP
  • C、ICMP
  • D、SMTP

正确答案:C

第6题：

The DBA issues this SQL command:What privileges does the user Scott have at this point?()

A. No privileges.

B. Only the SELECT privilege.

C. Only the CONNECT privilege.

D. All the privileges of a default user.


参考答案：A

第7题：

在SQL语句中，删除表的命令是（）。

  • A、DELETE TABLE
  • B、ERASE TABLE      
  • C、DROPTABLE
  • D、DELETE DBA

正确答案:C

第8题：

The user Sue issues this SQL statement:GRANT SELECT ON sue. EMP TO alice WITH GRANT OPTION; The user Alice issues this SQL statement:GRANT SELECT ON sue. EMP TO reena WITH GRANT OPTION; The user Reena issues this SQL statement:GRANT SELECT ON sue. EMP TO timber;The user Sue issues this SQL statement:REVOKE select on sue. EMP FROM alice;For which users does the revoke command revoke SELECT privileges on the SUE.EMP table?（）

A. Alice only

B. Alice and Reena

C. Alice, Reena, and Timber

D. Sue, Alice, Reena, and Timber


参考答案：C

第9题：

The SQL Tuning Advisor has been configured with default configurations in your database instance. Which recommendation is automatically implemented without the DBA’s intervention after the SQL Tuning Advisor is run as part of the AUTOTASK framework？（）

  • A、 statistics recommendations
  • B、 SQL profile recommendations
  • C、 index-related recommendations
  • D、 restructuring of SQL recommendations

正确答案:B

第10题：

When creating a SQL tuning set，which of the following steps allows the DBA to reduce the size of the SQL set by selecting specific operators and values？（）

  • A、 Filter versions
  • B、 Filter loads
  • C、 Filter tasks
  • D、 Filter options

正确答案:D

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