The NLS_SORT parameter sets the default sort method for which of the following operations?(Choose all that apply.)
A. WHERE clause
B. ORDER BY clause
C. BETWEEN clause
D. NLSSORT function
E. NLS_SORT function
The NLS_SORT parameter defines the default sort method(binary or linguistic) for both SQL WHERE clause operation and NLSSORT function operations.The default sort method for ORDER BY and BETWEEN(and other SQL operations that support linguistic sorts) is defined by the NLS_COMP parameter.NLS_SORT is an invalid function name.
原文：http://www.cnblogs.com/Babylon/p/7833784.html