单项选择题

Which view shows all valid values for the NLS_LANGUAGE， NLS_SORT， NLS_TERRITORY， and NLS_CHARACTERSET parameters？（）

A. V$VALID_NLS_VALUES
B. NLS_VALID_VALUES
C. NLS_VALUE_OPTIONS
D. V$NLS_VALUE_OPTIONS
E. V$NLS_VALID_VALUES

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多项选择题

The NLS_SORT parameter sets the default sort method for which of the following operations？（）

A. WHERE clause
B. ORDER BY clause
C. BETWEEN clause
D. NLSSORT function
E. NLS_SORT function

多项选择题

Given two different character sets （A and B）， which of the following must be true for A to be considered a strict superset of B？（）

A. A must contain all of the characters defined in B
B. A must be Unicode
C. The encoded values in A must match the encoded values in B for all characters defined in B
D. A must be a multibyte character set
E. The encoded values in A must match the encoded values in B for all numeric and alphabetic character

多项选择题

What elements of globalization can be explicitly defined using the NLS_LANG environment variable？（）

A. NLS_LANGUAGE
B. NLS_SORT
C. NLS_CALENDAR
D. NLS_CHARACTERSET
E. NLS_TERRITORY