473.How many different calendars does Oracle 11g support?
A. 22
B. 7
C. 6
D. 15
E. 2
Answer: B
答案解析：
参考：http://docs.oracle.com/cd/E11882_01/server.112/e10729/ch3globenv.htm#NLSPG215
NLS_CALENDAR
| Property | Description |
|---|---|
| Parameter type | String |
| Parameter scope | Initialization parameter, environment variable, ALTER SESSION, and SQL functions |
| Default value | Gregorian |
| Range of values | Any valid calendar format name |
Many different calendar systems are in use throughout the world. NLS_CALENDAR specifies which calendar system Oracle Database uses.
NLS_CALENDAR can have one of the following values:
-
Arabic Hijrah
-
English Hijrah
-
Gregorian
-
Japanese Imperial
-
Persian
-
ROC Official (Republic of China)
-
Thai Buddha