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

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?（）

单项选择题 Which of the following NLS_SORT parameter values would result in case-insensitive and accent-insensitive binary sorts?（）