Choose twoide
Which two statements are true about Oracle synonyms?對象
A) A synonym can have a synonym.it
B) All private synonym names must be unique in the database.class
C) Any user can create a PUBLIC synonym.object
D) A synonym can be created on an object in a package.tab
E) A synonym has an object number.di
(解析:view
實驗證實能夠爲同義詞建立同義詞;vi
同義詞也是 Oracle 的一個對象;co
synonym 須要受權纔可以建立;
)