单项选择题

Which is not a valid locale definition file type?（）

A. Language
B. Linguistic sort
C. Calendar
D. Territory
E. Character set

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单项选择题
Which of the following would be affected by setting NLS_LENGTH_SEMANTICS=CHAR?（）

A. All objects in the database
B. Tables owned by SYS and SYSTEM
C. Data dictionary tables
D. NCHAR columns
E. CHAR columns
单项选择题
Which NLS parameter can be used to change the default Oracle sort method from binary to linguistic for the SQL SELECT statement?（）

A. NLS_LANG
B. NLS_COMP
C. NLS_SORT
D. None of the above
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