問題文
An author building a classic analysis wants a greeting in the title view and tries to declare a new session variable called USER. Oracle Analytics refuses the name. Which rule explains the refusal?
選択肢
- System session variables carry reserved names, so a name that Oracle Analytics has already reserved can't be taken for another kind of variable.
- Session variables end at browser close or sign-out, so a name that a title view reads has to be declared as a presentation variable instead.
- Non-system session variables take their value from an initialization block, so a name with no block behind it is turned away when the analysis is saved.
- Global variables belong to the analysis that created them, so a name a title view reads has to be qualified with the path of that analysis.