Oracle OCP 1Z0 053 Q465(NLS Parameters)

465.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
Answer: C

預設的應當是最低。

參考：http://blog.itpub.net/17013648/viewspace-1299768/

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