单项选择题

In a database with the database character set of US7ASCII and a national character set of UTF-8, which datatypes would be capable of storing Unicode data by default?（）

A. VARCHAR2
B. CHAR
C. NVARCHAR2
D. CLOB
E. LONG

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单项选择题

What can you determine about the following linguistic sorts based only on their names?（） 1. GERMAN 2. FRENCH_M multilingual

A. 1 is a monolingual sort.
B. 2 is a monolingual sort.
C. 1 is case insensitive.
D. Both 1 and 2 are case insensitive.
E.Case sensitivity is unknown.

单项选择题

NLS parameters can be set using the five methods listed. Put the methods in order from highest to lowest according to Oracles order of precedence: （） a. Default setting b. Client environment variable c. Explicit ALTER SESSION statement d. Inside SQL function e. Server initialization parameter

A. b, d, e, a, c
B. e, a, b, c, d
C. d, c, b, e, a
D. a, b, d, c, e
E. d, c, b, a, e