What does the DB_FLASHBACK_RETENTION_TARGET parameter configure？（）  

相似题目

• What does the SCN represent?（）

  A . The system change number, which is a point in time relative to transactions within a given database.  B . A number that represents time. Thus, at 1300 hours, the SCN is the same on all databases.  C . The security change number, which represents the security code that is needed to access any database structure. D . A conversion factor that converts internal database time to external clock time.  E . UTC time in the database, providing a standardized way of tracking time in Oracle.&e

  查看最佳答案

• What does the man mean?

  A . There’S been nothing but rain for quite some time． B . He’S bored with the changing weather． C . He thinks that it’11 rain for three more weeks． D . He’S bored about the topic on weather．

  查看最佳答案

• What does the SCN represent？（）  

  A .  The system change number， which is a point in time relative to transactions within a given database. B .  A number that represents time. Thus， at 1300 hours， the SCN is the same on all databases.  C .  The security change number， which represents the security code that is needed to access any database structure. D .  A conversion factor that converts internal database time to external clock time. E .  UTC time in the database，providing a standardized way of tracking time in Oracle.

  查看最佳答案

• What does the mural ‘1888’ symbolize?

  查看最佳答案

• What does the speaker think of the measure?

  查看最佳答案

• What does the weatherman say?

  查看最佳答案

• What does the space of the library represent?

  查看最佳答案

• What does the device do?

  查看最佳答案

• What does the writer think of the teacher?

  查看最佳答案

• What does the ABS mean?

  查看最佳答案

• What does the weather forecast ?

  查看最佳答案

• What does the man tell the woman？

  A．He needs to see identification. B．The documents will be sent to her room. C．He forgot his notes for the morning. D．She can pick up her package.

  查看最佳答案

• What does the woman want from the man？

  A．To tell her what he found out B．To call during business hours C．To tell her his phone bill amount D．To ask about customer service

  查看最佳答案

• What does the speaker suggest the company do？

  A．Offer the seminars in a better location B．Give a raise to employees who attend C．Fine employees for not attending D．Demote employees for not attending

  查看最佳答案

• What does the man need from the bookstore？

  A．A schedule of classes for next term B．A form. to order books C．Specific books for his classes D．Information about employment

  查看最佳答案

• 34 What does the survey indicate？

  A. Twenty percent of Americans want smaller portions. B. Many low-income Amercing want large portions. C. Fifty-seven percent of Americans want large portions. D. Forty-five percent of Americans want smaller portions

  查看最佳答案

• What does the woman ask the man？

  A．Where he lives B．Where he is from C．Who he spoke with D．What he does for a living

  查看最佳答案

• What does the man mention about the place？

  A．Its service is one of a kind. B．It sells the freshest fruit and vegetables. C．Its selection of baked goods is the biggest. D．It has the best tasting food.

  查看最佳答案

• What does the reporter suggest？

  A．The roads will stay clear. B．The drivers should avoid 7th Avenue. C．The drivers should take 5th Avenue. D．The roads are still congested.

  查看最佳答案

• What does the announcement introduce？

  A．A punitive policy B．A security system C．A cafeteria renovation D．A companywide pay cut

  查看最佳答案

• what does the woman want？

  A．An orange. B．An apple. C．A cup of tea.

  查看最佳答案

• What does the man mean．？

  A.He wants to go with them． B.He will invite his friends． C.He is not interested in going．

  查看最佳答案

• What does the man advise the woman about？

  A．Setting up a business B．Finding a real estate agent C．Renovating historic buildings D．Buying property in the neighborhood

  查看最佳答案

• What does the man suggest the woman do？

  A．Find a more spacious 3-bedroom apartment. B．Make do with a small 3-bedroom apartment. C．Sign the lease now. D．Leave the master bedroom to the children.

  查看最佳答案

• What does the man offer the woman？

  A．A promotion B．Career advice C．Freelance work D．A job with Drake

  查看最佳答案