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提问人:网友elanphy 发布时间:2022-01-07
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User Mary has a view called EMP_DEPT_LOC_VU that was created based on the EMPLOYEES, DEPAR

TMENTS, and LOCATIONS tables. She has the privilege to create a public synonym, and would like to create a synonym for this view that can be used by all users of the database.Which SQL statement can Mary use to accomplish that task?()

A. CREATE PUBLIC SYNONYM EDL_VU ON emp_dept_loc_vu

B. CREATE PUBLIC SYNONYM EDL:VU FOR mary (emp_dept_loc_vu);

C. CREATE PUBLIC SYNONYM EDL_VU FOR emp _dept_loc_vu;

D. CREATE SYNONYM EDL_VU ON emp_dept_loc_vu FOR EACH USER;

E. CREATE SYNONYM EDL_VU FOR EACH USER ON emp_dept_loc_vu

F. CREATE PUBLIC SYNONYM EDL_VU ON emp_dept_loc_vu FOR ALL USERS;

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更多“User Mary has a view called EMP_DEPT_LOC_VU that was created based on the EMPLOYEES, DEPAR”相关的问题
第1题

????????????Questions 11 to 15 are based on the following passage:????

??It is recently estimated that the book industry is trying to get a good read on its future. These days, instead of turning paper pages, many readers reach for hand held devices. These electronic readers not only Store books to show on a screen, they can also read them out loud.????

??Last week, Amazon lowered the price of its Kindle reader by 60 dollars to just under 300 dollars. The device can download books wirelessly from a store on Amazon&39;s Website. Most new releases and best sellers cost 9 dollars and 99 cents. Newspapers, magazines and other services are available for a monthly charge. Buyers of e-books get a good deal: Traditional hard cover books often cost around 25 dollars. But what about book publishers and writers? Their concerns about profits are like the ones voiced as the Internet began to change the music industry. Many e-books are already selling for 99 cents.??

??Books printed on paper are easily shared and resold by anyone But e-books can act more like computer software licensed only to the user who buys them.And some Kindle users got a shock last week. They were surprised to find that copies of two books disappeared from their devices. These were 99 cent versions of George Or well&39;s 1984 and Animal Farm. Blogger shave had fun pointing out that 1984 is largely about censorship(审查制度)-the suppression of information in a society led by Big Brother. Amazon explained that it did not have the rights to the books, so it erased them and returned the people&39;s money.??

??This week, Barnes & Noble, the world&39;s largest bookseller, launched what it calls the world&39;s largest e-bookstore. People can read the books on the Apple iPhone and other hand held devices and personal computers. They can also download over a half million books available free from Google. The Internet search company is putting books online that are no longer protected by copy right.

But last October, Google reached a 125 million dollar legal settlement to also make parts of some copy righted books available. That deal with two groups of writers and publishers has raised competition(竞争)issues. The Justice Department is now investigating. Also, the European Union plans hearings in September on how European writers might be affected.

????What does the author mean by saying “ ...the book industry is trying to get a good read on its future” in the first paragraph???????????

??

??A.it is trying to change its direction.

B.It wants to know where its future lies.

C.It wants to know what will the readers like in the future.

D.It is trying to print more readable books in the future.

The reasons why many readers prefer hand held devices to paper books are as follows except ___.

A.they can show books on a screen

B.there is no need for people to turn pages

C.paper books are not as portable as e-books

D.they can read books out

More and more readers prefer the e-books to the traditional books in that _______.A.they are licensed only to the user who buys them

B.copies of some books may disappear from their devices because of their no rights to the books

C.they are easily shared and resold by anyone

D.they cost less to download books from the Internet than to buy traditional books

We can conclude from the passage that________.A.some Kindle users got shocked in that they had no rights to download some books

B.the Internet search company put books online that are protected by copyright

C.the European Union shows concerns about copyrighted books

D.the sales of e-books at a lower price do harm to the profits of publishers and writers

Who may protest (抗议) against the issue of downloading books free from the Internet?A.The Justice Department and the European Union.

B.Google and Barnes & Noble

C.Publishers and writers.

D.Kindle users and booksellers.

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第2题
A star might become a dead one when its gases run out.
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第3题
Given:Whatistheresult?()

A.Mr.JohnDoe

B.Anexceptionisthrownatruntime.

C.Compilationfailsbecauseofanerrorinline12.

D.Compilationfailsbecauseofanerrorinline15.

E.Compilationfailsbecauseofanerrorinline20.

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第4题
下列描述正确的是:()

A.Adobe lllustrator9.0不能设定段前距

B.Adobe lllustrator9.0不能像Page Maker那样设定复合字体

C.Adobe lllustrator9.0不能进行文字绕图

D.Adobe lllustrator9.0不能将True Type字体转成图形

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第5题
Given:Whichstatementistrue?()

A.Alloftheassertstatementsareusedappropriately.

B.Onlytheassertstatementonline12isusedappropriately.

C.Onlytheassertstatementonline15isusedappropriately.

D.Onlytheassertstatementsonlines15and18areusedappropriately.

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第6题
YouexecutedthefollowingcommandinRecoveryManager(RMAN):RMAN>RESTORECONTROLFILE;Whichoperationmustyouperformbeforethiscommandisexecuted?()

A.backupthecontrolfiletotrace

B.bringdatabasetotheMOUNTstate

C.openaconnectiontotheRMANrecoverycatalog,whichcontainstheRMANmetadataforthetargetdatabase

D.setthedatabaseID(DBID),butonlyiftheDB_NAMEparameterassociatedwiththetargetdatabaseisuniqueintherecoverycatalog

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第7题
Evaluatethefollowingcommandanditsoutput:SQL>SELECT*FROMdba_temp_free_space;TABLESPACE_NAMETABLESPACE_SIZEALLOCATED_SPACEFREE_SPACELMTEMP250609664101048576149561088Whichtwostatementscorrectlyinterprettheoutput?()

A.FREE_SPACEindicatesonlythespacethatiscurrentlyunallocated.

B.ALLOCATED_SPACEindicatesonlythespacecurrentlyallocatedandinuse.

C.FREE_SPACEindicatesonlythespacethatiscurrentlyallocatedandavailableforreuse.

D.ALLOCATED_SPACEindicatesboththespacecurrentlyallocatedandused,andthespacethatisavailableforreuse.

E.FREE_SPACEindicatesboththespacethatiscurrentlyallocatedandavailableforreuse,andthespacethatiscurrentlyunallocated.

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